Research And Implementation On The Test Method Of The Comprehensive Parameter Of PTC Starter

PTC starter in addition to the main features include PTC thermistor material resistance - temperature characteristics, the voltage - current characteristics and thermal properties, but also included in the practical application of the characteristic parameters, such as recovery time, operating time, the static power consumption , damage resistance and temperature resistance of several aspects, in which the resistance - temperature characteristics, the voltage - current characteristics and thermal properties and other characteristics of the measurement and test system has been very common, and test technologies and techniques are constantly improving, this because the PTC thermistor materials research in the field need to promote the improvement of their testing techniques and research. The PTC starter for the main performance parameters of the measurement and testing is currently rarely appear. With the compressor technology development and new control methods and the emergence of the theory, PTC starter compressor startup process as indispensable components, its application areas of interest in the measurement of the parameters become increasingly important, and for the theoretical study also has important practical significance was also closely associated with the application materials. This paper starts from the PTC test method parameters starting point to start PTC technology to study the parameters of the test content, discusses the PTC starter test parameters measured physical quantities involved in the test principle and test methods, and integrated parameters PTC starter constitute a form of the test system was described. Through the use of computer-controlled data acquisition card, combined with computer technology, automated testing, discusses the PTC integrated parametric test system hardware and software design and implementation.This test system uses a combination of resistance and multi-tap transformer design, and its control presents unique methods and algorithms, and discuss and apply the appropriate parameters in the test system interference signal characteristics of the software algorithm. Paper describes the major hardware and software sub-module module design and implementation. In the control optimization is also made a lot of research and testing, the final completion of the entire test system design, and was applied in the enterprise. Based on the test system provides test results, combined with the Matlab software to analyze the test data, mainly from the consistency of test data and error analysis to identify the test operation of the system stability, accuracy and data collection procedures for fault tolerance is meet advanced requirements. And different types of PTC starter operating time between the recovery time between the static power consumption and temperature resistance between the comparison of data between, to get the PTC synthesis parameters affecting the electrical factors. For the above aspects of the characteristics of PTC starter test methods and analysis of the mechanism has some significance.