Integrated Performance Test Research Articles

A 50 pico-g resolution integrated test facility for high-precision inertial sensors

High-precision inertial sensors are the key instruments for many applications. However, their performance is difficult to test on the ground due to the effect of seismic noise. To evaluate the complete performance of inertial sensors, the main test items include noise floor test, scale factor calibration, resolution test and so on. The accelerometers used in inertial navigation and precision measurement fields usually require direct resolution test. Depending on the application, the resolution of high-precision accelerometers can reach up to the pico-g (pg) level or even higher. However, the resolution test ability of conventional test systems is limited by the seismic noise and the precision of the input signal, which becomes the main obstacle for the development of sub-nano-g to pg level accelerometers. In this paper, a simultaneous two-dimensional integrated performance test facility is developed using an active vibration isolation bench and precision gravitational input, allowing the performance test of high-precision inertial sensors and direct evaluation of resolution at the 50 pg level.

Design of the Integrated Performance Testing Device for Electromagnetic and Static Relays Based on Single Chip Microcomputer

In order to improve the action performance of the relay, this paper designs an electromagnetic static relay comprehensive performance testing device based on MCU. First of all, a master-slave design structure is proposed, which is composed of a low-power, high-performance Cortex-M3 core high-speed microcontroller. Then, the one-time test model and control logic suitable for testing coil resistance, action/return voltage, coil action power, action/recovery time, contact resistance and working power consumption of AC and DC relays are emphatically introduced. Finally, through experiment testing in substations and power plants, the intelligence, rapidity and integrity of the device are verified.

Simulation and Integrated Testing of Process Models of PFBR Operator Training Simulator

Abstract High fidelity Full Scope Operator Training Simulators play a key role in imparting plant related knowledge to the operating personnel in an effective way. It provides a platform for training the operators on normal and emergency conditions including all types of scenarios that would arise in any Nuclear Power Plant. The scenario based training helps the plant operator to handle a crisis in an efficient manner with the ultimate goal of safe and efficient operation of the plant. This paper discusses about the general description of PFBR Operator Training Simulator, modeling and simulation of various process models, the complexities involved etc. It also covers the associated process logics, controls, display of alarms and indications, malfunctions and transient incidents related to each process model, integration with other sub systems, individual process model testing, integrated performance testing and verification and validation of models. Simulation of process models are broadly classified into two main categories namely, External Models - that are developed in-house and ported to the simulator environment and Internal Models - that are developed using Simulation Tool. External Models are tested on the desk top for intended functioning and after obtaining satisfactory results, the models are ported to the simulator base wherein the Logical and Virtual Panel Models are built to represent a real system of the plant. Internal Models are built using the Simulation Tools and integrated with the External Models after testing. Combination of External and Internal Model represents the total plant and the performance testing is conducted in an Integrated Mode to qua lify the Process Models for training purpose.

DESIGN AND CONSTRUCTION OF AN ADVANCED SPENT FUEL CONDITIONING PROCESS FACILITY (ACPF)

KAERI has worked on the development of an advanced spent fuel conditioning process (ACP) since 1997. A hot cell facility, termed the ACPF, has also been developed. The ACPF consists of two air-sealed hot cells. The results of a safety analysis as part of the license procurement process stipulated by the Korean Government showed that the facility was designed safely. After its construction, an integrated performance test was performed. The results of this test confirmed that the facility satisfies the design requirements.