Abstract
Smart sensors have been used in many engineering monitoring and control applications. This work focuses on the development of a new type of clinical Bluetooth thermometer, based on an improved low-power resistive transducer circuit. Most existing resistive transducers use relatively complicated circuits with higher cost and power consumption. To tackle these problems, especially in real applications, an improved low-power resistive transducer circuit is proposed in this work and is used to develop smart Bluetooth thermometers. The parameters of the resistive transducer circuit are selected by quantitative analysis and optimization to improve the performance of the low-power resistive transducer circuit. The effectiveness of the proposed design technology was verified by tests. The temperature measurement error of the new smart Bluetooth thermometer is less than 0.1 °C, which can not only meet the clinical use requirements but also has lower cost and power consumption.
Highlights
Smart transducers/sensors have been used in different engineering applications inSmart transducers/sensors been used in different engineering in manufacturing, system conditionhave monitoring, automatic control, etc. [1,2].applicationsDifferent from manufacturing, system condition monitoring, automatic control, etc. [1,2].Different from traditional transducers, a smart sensor has built-in functions, such as sensing, preconditraditional transducers, a smart and sensor has built-in functions,in such as sensing, preconditioning, detection, monitoring, information processing, which a microcontroller tioning, detection, monitoring, and information processing, in which a microcontroller unit unit (MCU) is used as the core processing unit
The parameters of the resistive transducer ducer selected by quantitative analysis and optimization to improve the performance of circuit are selected by quantitative analysis and optimization to improve the performance of the the low-power resistive transducer circuit
1, the outputs from the sensing units are amplified, adjusted, and converted to digital signals, which the are sensing units are amplified, adjusted, and converted to digital signals, which are fed to the MCU for processing
Summary
Smart transducers/sensors have been used in different engineering applications in. Smart transducers/sensors been used in different engineering in manufacturing, system conditionhave monitoring, automatic control, etc. [1,2].applications. The objective of this work was to develop a new type of clinical Bluetooth thermometer, based on an improved low-power resistive transducer circuit. This product will be used for real-time human body temperature monitoring. The following novel aspects are provided in this study: (1) an improved low-power resistive transducer circuit is proposed to reduce cost and power consumption in smart sensor product development; (2) a quantitative method is suggested to optimize the system parameters based on the resolution of the minimal convention circuit and current loss analysis; and (3) a new type of Bluetooth thermometer product is developed for clinical applications.
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