Load Cell Sensor Research Articles

Smart Infusion and Web Based Monitoring Infusion Fluids in Isolation Room Based on Fuzzy Logic

High-tech improvements with reference for health advance to develop numerous medical tools have been build to support doctors and nurses performances. This analysis research applied web-based system of infusion monitoring and microprosessor or microcontroller to grease performances of nursers and pharmaceutical helping in clinics or public health centers of the district. In this research, smart infusion web-based is builded for providing for the infusions by applying Node MCU and ESP 8266 Wi-Fi module. Smart Infusion aimed at helping nursers and medical helpers handling infusions of contagious complaint cases or Covid-19 cases to provide for infusion situation in isolation room or emergency room at hospital also public health centers at the district. Detecting the infusion weight, volume and percentage by applying a digital scale and the Load Cell sensors. This monitoring tools or devices is created to count the display from LCD and infusion weight the volumes and percentage of infusion with 3 colors alert display on the Website such as red color, yellow color, and green color depend on a web developed by php language, C programming with Arduino by C language embedded in microprocessor or microcontroller and based on fuzzy logic. Testing results have been achieved, monitoring device can work efficiently and completely when calculating weight, percentage, and volume. Scanning data of success accuracy of Load Cell sensors is 98,00%.

A Simple Brushless Motor and Propeller Test Stand for Experiment from Home

A brushless motor and propeller test stand is used to test brushless motors and propellers. This testing instrument is still only available in research laboratories. Students and researchers are unable to use laboratory facilities because of the Covid-19 epidemic, thus students must be able to do tests independently from home. Purchasing this testing instrument would be too expensive for students. It is essential to construct a brushless motor and propeller testing instrument at home using simple components that are easy to get on the marketplace. The design concept reads force data using a loadcell sensor and an HX711 driver, and current and voltage data with an INA 219 sensor. The brushless motor’s rotational speed is controlled by a potentiometer. Force, current, voltage, and power are all examples of test results data. A 16×2 LCD is used to show data immediately. Data is also transmitted via a USB connection to a computer device for storage or additional analysis. This study proposes a simple brushless motor and propeller test stand that can measure forces from 0 gf to 1000 gf with an error rate of 0.72 %. The power that can be read ranges from 0 mW to 18960 mW, with a 0.59 % error rate.

Microcontroller Based Portable Incubator Monitoring Tool with Short Message Service (SMS) notifications

The aim of this research was applied a microcontroller, temperature sensor, weight sensor, heart rate sensor and GSM module to monitoring and notification of the condition of premature babies in portable incubators. The hardware used consists of a DS18B20 sensor, Load Cell, Pulse Heart Rate Sensor, Buzzer, LCD and SIM800L Module. The results showed the Pulse sensor and DS18B20 sensor could measure and detect the baby’s heart rate and baby temperature. The result was on the LCD with an average error of 4.354% for heartrate and 1.437% for temperature. The loadcell sensor can detect weight with an error of 2.16%. The duration of sending SMS to Smartphone is 8s for each delivery. SMS was sent if the baby weak and critical condition.

ANALISIS UJI THRUST MOTOR EDF DAN PENENTU SISTEM LEPAS LANDAS DI WAHANA ROKET BERBASIS ATMEGA 328

Analysis of the EDF (Electric Ducted Fan) thrust motor test and the determination of the takeoff system on the ATmega 328-based rocket vehicle is a prototype design of a thrust test tool that is used to measure the thrust output of a 70 mm EDF motor used as a vehicle propulsion engine. EDF rockets as well as a prototype rocket takeoff system that serves as a takeoff indicator using the data from the EDF thrust motor test as a reference for rocket liftoff. The data measured in the EDF motor thrust test are, among others, thrust data detected using a load cell sensor, RPM data (EDF motor rotation) detected using an infrared proximity sensor, PWM (Pulse Wide Modulation) output data from the mapping input potentiometer. and a 16x2 LCD module with I2C used to display test data. The thrust test data used on the prototype of the rocket takeoff system are RPM and PWM data with indicators ready to take off using green LEDs. The prototype of the take-off system of the rocket vehicle is based on the ratio between the thrust of the EDF motor and the rocket's weight (thrust to weight ratio) of ?1. The results of the research when testing the thrust on the EDF motor with a 6 blades propeller obtained maximum RPM and thrust data of 73619 RPM and 695.3 g, for testing on the EDF motor with a 12 blades propeller obtained the maximum RPM and thrust data of 65861 RPM and 696.2 g RPM, where all these data is obtained when 100% PWM output from Arduino to ESC (Electric Speed Controller). Thrust to weight ratio produced on each EDF motor with 6 blades and 12 blades propellers is 1,202 and 1,189. Takeoff system uses PWM input reference to brushless motor ESC at 100% ratio

Design an Automatic Flour Packing System With the Programmable Logic Controller System

To facilitate marketing so it is necessary to organize the packaging / packaging process. One of the production activities in terms of filling and packaging flour still uses human labour and it takes 2 workers for producing 100 sacks of flour in 3 hours in a 20 kg package. The manual method used by the workers can prove that it takes a long time to process the flour filling and packaging. After observing the problems experienced by workers, therefore the authors took the initiative to create a device that can carry out the filling and packaging process of flour automatically by utilizing a PLC (Programmable Logic Controller) as a controller, proximity optical sensors as packaging detectors in the filling place, load cell sensors. as a detector for the weight of flour to be weighed and the weighing result is displayed on the LCD. Packages that have been filled with 2 kg of flour will be carried by a conveyor for the packing process using a sewing machine. From the test results, it is found that the filling process of flour weighing 2 kg is displayed on the LCD and also the packaging process takes 20 seconds.

Infant Warmer Equipped with Digital Weight Scales

Scales Scales in the world of health are used to measure human body weight such as baby scales. Newborns are very important to be weighed because it is used as a measure of the baby's health indication ranging from 2.4 kg to 4.2 kg. The author makes a tool for this to make it easier for users to weigh with a 7 segment display on the Infant Warmer tool and external calibration. By using a loadcell sensor with a maximum capacity of 5 kg, the loadcell can detect the weight of the load where the voltage generated by the loadcell of 0.7 mV at a load of 1 kg is amplified to 0.62 V by the PSA circuit using the AD620 IC and then processed by Arudino UNO as a microcontroller. The weight results will be displayed on the 7Segment display located on the Infant Warmer tool. In the study, the measured load included a weight of 0 kg to a maximum weight of 5 kg. The measurement of the data results was carried out 5 times each by comparing the modules that had been made with the standard weight, namely (lead). The data from the measurement results of the research module shows that when the weight of the measurement at 1 kg has an error percentage of 0.08%. Measurements at a weight of 2 kg have an error percentage of 0.05%. Measurement of weight 3 kg has a presentation error of 0.01%. Measurements at a weight of 4 kg have a presentation error of 0.02%. And measurements at a weight of 5 kg have an error percentage of 0.04%. Then the data from the measurement results of the research module shows the largest error presentation of 0.08% at a weight of 1 kg. And the data from the measurement results of the research module shows the smallest error presentation of 0.01% at a weight of 3 kg. Making a research module in the form of a scale placed on an infant warmer can make it easier for the wearer.

PEMILAH SAMPAH PINTAR BERDASARKAN LOGAM DAN NONLOGAM DI KANTOR FAKULTAS TEKNIK

Garbage is an object or material that is no longer used by humans so that it is thrown away. Community activities that produce waste are not only the responsibility of the government, but the community must also be responsible for processing waste so that it does not have a negative impact on the surrounding environment. Garbage is one of the problems that must be considered, because waste from year to year continues to increase along with the increase in population. In order not to cause environmental pollution, waste must be processed according to the type of waste so that it is beneficial for people's lives and health. Therefore, waste must be sorted according to the type of waste to facilitate the recycling process. For the waste sorting process, it is still done conventionally, and manually, namely sorting using different methods of garbage bins based on the type of waste and sorting manually, using staff. Waste sorting that previously used the manual method was replaced with an automatic sorting system. This waste sorting system starts from the input process that comes from the proximity sensor, loadcell sensor, and ultrasonic sensor. This system uses Arduino Mega as a micro controller that functions as a data processing center in the sorting system. The results obtained are that the proximity sensor can detect the type of waste and send data to the Arduino to determine where the servo motor will move to move the garbage according to its type. The weight of the garbage in the container is measured with a loadcell sensor to detect how much garbage weighs. Ultrasonic sensors can measure the amount of waste in the container. Users can see the status of the container on the LCD attached to this tool.

Digital Fuel Measuring Techniques: A Review

Abstract: There have been significant advancements in gasoline metering technology during the last few years. In any event, a key difficulty that all drivers encounter is the inability to obtain volumetric data for the remaining gasoline level, primarily while refuelling the car or driving at reserved fuel levels. As a result, customers find up paying for fuel they don't have. This paper gives an overview of several approaches involving numerous sensors that have been designed to generate a consistent indication of the amount of fuel available. In this study, capacitive, potentiometric, fibre optic, electromagnetic, ultrasonic, and load cell sensors are explored. The aim of this study is to present a report on fuel monitoring strategies that rely on these six sensors. This investigation will aid other researchers working in this field in selecting a sensor for their project. Keywords: fuel measuring, capacitive, electromagnetic, potentiometric, fibre optic, ultrasonic, and load cell.

Rancang Bangun Sistem Monitoring Dan Pemberi Pakan Otomatis Ayam Anakan Berbasis Internet Of Things (IoT)

Farm is one of the largest food suppliers after agriculture. Many of the breeders do everything to improve the quality of their livestock. The usual way used by chicken farmers are by manual means such as temperature checking, and checking the availability of feed. Therefore it is necessary to create an automatic temperature monitoring and chicken feeding tool, which in this research based on IoTs (Internet of Things). It uses DHT11 sensors to measure temperature in cages, Arduino Uno and NodeMCU ESP 8266 as microcontrollers and blynk applications as temperature monitoring tools. It consists of several interconnected parts. Starting from the DHT11 sensor measuring the temperature, then sent to the microcontroller after it is processed, then sent to the blynk webserver so that it can be accessed and displayed by the monitoring application. While chicken feeding can be made easier using servo motor as a door feeder chicken that works with scheduling system, then for the availability of feed will be measured by the specified weight. If the weight reaches a number less than or equal to 400 grams, then the loadcell sensor will send a notification to blynk with the message . The result of this researchs can monitor the temperature in the cage and provide feed automatically even though it still not maximal.

Modeling the stochastic mechanism of sensor using a hybrid method based on seasonal autoregressive integrated moving average time series and generalized estimating equations

Sensor, which is one of the main components of control system, plays its vital role in measuring state and output system variables and highlights the importance of having desired statistical information about sensor output signals because it can be monitored, stored, or used as the primary input signal in other devices. However, these signals display noises (i.e. system noise and measurement noise) and even if the effects of system noises are faded away or removed from measured data, there is still some stochastic noise remained in the measurements. Even though SARIMA has been effective in modeling the stochastic noise in the sensor, the present study has found out the necessity of designing a novel approach including a combination of seasonal autoregressive integrated moving average (SARIMA) and polynomial generalized estimating equations (PGEE), to evaluate the stochastic behavior of sensors. Finally, the study tried to employ the proposed approach in real load-cell sensor data to examine its effectiveness.

RANCANG BANGUN ALAT UKUR BERAT BADAN OTOMATIS BERBASIS ANDROID

Design and construction of an Android-based automatic weight measurement tool has been carried out. This research was made because of the demands for sophisticated medical support equipment with all the capabilities it has that continues to develop so that effective and efficient medical support equipment can be produced. This tool is designed with the aim of providing information about the measurement data of weight and height to users. Measurement results data will be sent to Android in the form of messages to be stored using the android database system storage.This research method uses qualitative methods, namely: study literature and literature and conduct experiments on the circuit design made, then test the function of the tool with a scale to determine the accuracy of the work of this tool. This tool is made by utilizing the Load Cell sensor as conversion then will sent via GSM SIM 800L, and the data is displayed via the application and SMS on the patient's Android.The test results show that the weight obtained is the result of the load cell sensor measurement. seen the percentage error value for each measurement, which allows the sensor to read errors and possible interference from the compiler program. As long as the% error does not exceed 3%, the module design and build an automatic weight measuring instrument, can be used properly

Multi-sensor integration and fusion for control of Multi-DOF spherical motion platform

This paper presents to develop multi-sensor integration and fusion for controlling a multi-degree-of-freedom (DOF) spherical motion platform (SMP) by utilizing four compliant spherical wheels. A cockpit sphere is not directly connected to a motion basis but spherical spheres with the compliant mechanism. The compliant wheel enables the SMP to achieve not only six-DOF motion, including unlimited rotational motion, but also reliable contact. However, it is difficult to measure the orientation of the cockpit without mechanical joints, unlike other existing platforms. Optical sensors and an inertial measurement unit (IMU) offer contact-free measurements, and sensor fusion is applied to compensate for accumulated errors of the IMU and data loss of the optical sensor, where a compliant mechanism helps contact distance between the cockpit and optical sensor to be maintained uniformly. A set of loadcell sensors enables to measure an unbalanced weight distribution incurring slipping and a further decline in control performance. Moreover, a control system with a multi-sensing system is designed to deal with disturbances and uncertainties, including coupled rotation. The experimental results of sensing and control operations validate that SMP can be applied to the virtual reality industry as motion simulators.

Устройство бесконтактного измерения гололедной массы на проводах воздушных линий электропередачи

Ice buildup monitoring is essential to prevent wire breakage on overhead power lines. Conventional telemetry systems which are based on load cell sensors have some drawbacks as reflected in this paper. We suggest an innovative device for contactless ice buildup monitoring of overhead power line wires video recording the power line clearance. A specific algorithm for detecting the lowest point of wire sag has been provided. Also, we analyze a possibility of indirect contact sensor-free measurements of a wire temperature when the wire is being covered by icy deposits. A specific buildup type can be determined comparing a dew point and desublimation point as shown in this paper.

PENGARUH VARIASI PUTARAN SPINDEL TERHADAP GAYA POTONG PADA PROSES PEMESINAN

The turning process is one of the most important machining processes in the industrial world. In this process, a change in shape is carried out by removing some of the material in the form of industrial machine tools. Inappropriate selection of the shape/type of tool, workpiece material, and cutting conditions will affect the characteristics of the tool. In the study, it was found that the rotational speed was 90,110,155,190 rpm, with a depth of cut of 0.3 mm at a feed rate of 0.023 mm / rev against different specimens, namely Dural Aluminum (Al 2024), Pure Aluminum (Al 1100) using a chisel insert type DCGT 070204K. -10 and DCMT 070202 M-20 with conventional lathe type Emco Maximat V - 13 IP 54. Data retrieval uses three sensors, namely a load cell sensor for cutting force, and the photoelectric counter module for rotation (rpm). The results showed that each specimen tested had a different value in each test experiment, such as testing on Pure Aluminum (Al 1100) specimens with a cut depth of 0.3 mm and rotation variations of 90, 110, 155, and 190. rpm can be seen in DCMT tool that the cutting force is greater than the DCGT tool. The cutting force produced on the DCMT tool blade is 9.91 N with a rotation of 110 rpm and at 190 rpm the DCMT tool gets a force of 6.83 N. It can be concluded that at low rotation the cutting force that occurs will be greater because of the vibrations that occur bigger.

On the figure of merit and streamwise flow of a propulsive rotor with synthetic jets

Increasing the figure of merit of propulsive rotors for vertical takeoff and landing (VTOL) vehicles is critical to improving the hover efficiency and flight endurance of rotorcraft. In this paper, a new flow control scheme is proposed where 60 synthetic jet actuators are utilized on a large-scale propulsive rotor and the jets' velocity is increased from the blade root to the blade tip in order maintain constant levels of momentum coefficient per blade module. The three-bladed rotor measures 2.58 m in diameter and contains a NACA 0012 airfoil with zero blade twist distribution. The rotor was tested at speeds of 250, 500, 750 and 1,000 revolutions per minute (RPM) and blade pitch angles of 2, 5, and 8 degrees. Rotor thrust and power were measured using a high-capacity load cell and current sensor, and the streamwise flow was measured using phased-locked laser Doppler velocimetry (LDV) techniques at two measurement planes near the blade root and near the blade tip along the suction surface of the airfoil. Two flow control schemes were tested and compared; the new constant momentum coefficient (constant Cμ) and non-constant Cμ where the synthetic jet velocity is held constant throughout the rotor blade. When all 20 synthetic jets per blade are activated, it was found that constant Cμ improves low-speed rotor performance in terms of figure of merit, FM and thrust coefficient, CT at 250 RPM, while non-constant Cμ is marginally superior at higher rotor speeds. When both flow control schemes are applied for just the blade root module, an increase in performance compared to the baseline is observed at rotor speeds of 750 and 1000 RPM, however different values of FM and CT are achieved for each scheme. Near the blade tip the boundary layers undergo transition to turbulent flow combined with an increasing degree of adverse pressure gradient with rotor speed and blade pitch angle. Under these conditions where the normalized streamwise velocity profiles show significant velocity deficit in the near-wall flow, synthetic jets provide some momentum to delay separation as quantified by the boundary layer shape factor.

Smith-Predictor-Based Torque Control of a Rolling Diaphragm Hydrostatic Transmission

Rolling Diaphragm Hydrostatic Transmissions (RDHT) are high-performance low-cost solutions to delocalize heavy actuators away from the joints of robotic systems. Exploiting a low-cost pressure-based sensing technique, we propose here a Smith-predictor-based joint torque control of an RDHT-based actuation system. We also use a load-cell sensor for ground truth validation. The developed feedback controller is conveniently tuned based on an arbitrary pre-specified closed-loop natural frequency and damping ratio. This preserves the open-loop bandwidth while removing the intrinsic oscillations of the lightly damped highly transparent open-loop plant. Experimental tests validate the proposed control strategy, both in a stand-alone torque setpoint configuration and in a series of Human-Robot-Interaction tests confirming the significant advantages of the closed-loop control architecture.

Design and Error Verification of Intravenous Injection Detection System that Combines Load Cell and Gyro Sensor

Design and Error Verification of Intravenous Injection Detection System that Combines Load Cell and Gyro Sensor

Design for Monitoring Blood Pressure, Non-Invasive Blood Sugar, Weight, and Body Temperature Based on Internet of Things

In adults to the old age, check health conditions such as blood pressure, blood s ugar levels, and others are needed regularly. Medical devices generally only be operated by doctors. Healthcare companies always develop medical devices for efficiency in use and minimize costs in manufacture. In this study, researchers made a design for monitoring blood pressure, non-invasive blood sugar, weight, and body temperature based on the Internet of Things. This tool uses NodeMCU microcontroller, which processes sensor MAX30100 and DS18B20. The MAX30100 sensor is used to detect blood pressure and blood sugar non-invasive. By put finger index on the sensor, the results will display after 20 seconds. DS18B20 sensor is used to measure realtime body temperature by clamp the sensor to the armpit. Load Cell sensors and the HX711 module are used to measure body weight.Results on measurements on LCD 20x4 and android using the Blynk application with the internet.Test analysis with a compare of the manufacturer's standard tools. The results, accuracy of tool are 94.78% and 93,37% in the measurement systole and diastole, 93,21% in measuring blood sugar, 96,55% in measuring body temperature, and 98,27% in measuring body weight. The results on Android can display if there is an internet or wifi connection without place restrictions.

Improving the Detection of the Contact Point in Active Sensing Antennae by Processing Combined Static and Dynamic Information.

The design and application of sensing antenna devices that mimic insect antennae or mammal whiskers is an active field of research. However, these devices still require new developments if they are to become efficient and reliable components of robotic systems. We, therefore, develop and build a prototype composed of a flexible beam, two servomotors that drive the beam and a load cell sensor that measures the forces and torques at the base of the flexible beam. This work reports new results in the area of the signal processing of these devices. These results will make it possible to estimate the point at which the flexible antenna comes into contact with an object (or obstacle) more accurately than has occurred with previous algorithms. Previous research reported that the estimation of the fundamental natural frequency of vibration of the antenna using dynamic information is not sufficient as regards determining the contact point and that the estimation of the contact point using static information provided by the forces and torques measured by the load cell sensor is not very accurate. We consequently propose an algorithm based on the fusion of the information provided by the two aforementioned strategies that enhances the separate benefits of each one. We demonstrate that the adequate combination of these two pieces of information yields an accurate estimation of the contacted point of the antenna link. This will enhance the precision of the estimation of points on the surface of the object that is being recognized by the antenna. Thorough experimentation is carried out in order to show the features of the proposed algorithm and establish its range of application.

Comparison of testing load cell sensor data sampling method based on the variation of time delay

Load Cell Sensors are transducers (transducers, electronic components that can measure physical quantities into electrical signals) that can convert the pressure by the load into an electrical signal. IC HX711 is a weighing module, which has a working principle of converting the measured changes in resistance changes and converting them into voltage quantities through the existing circuit. Load cell and HX7411 are used to obtain data of weight which will be compared with a commercial digital weight scale that the accuracy has been verified. In collecting data of weight, there are several calculation methods including the mean, modus, and median method. This study aims to provide test results for the three methods with different variations in delay. Delay is used to avoid errors in taking data from the sensor directly and also to provide pauses for the sensor in real time data collection. The test was conducted with four human subjects who have differences in body weight. The variation of delay used is 250ms, 500ms, 750ms, and 1000ms. The test results show that when testing variations in body weight with a delay time of 250ms, the mean method has the best results with a value of nmean = 2. In the 500ms delay test, the median method has the best results with the value nmedian = 3. In the 500ms delay test, the mean and median methods have the same good results with values of nmean = 2 and nmedian = 2. In the 1000ms delay test, the median method has the best results with a value of nmedian = 2. The results of the whole test show that the values of Nmean = 6, Nmedian = 8, and Nmodus = 2 which indicate that the median method is the method that has the best level of precision.