Pressure Sensors, Transmitters, Automatic Test / Calibration System Developed,

Pressure sensors and pressure transmitters are widely used in satellite launching experiments in all areas of technology, and its results are accurate and reliable measurement of whether or not to launch a direct impact on the smooth progress of experiments. Due to space using the existing range of pressure sensors, transmitter test / calibration means backward, inefficient and not conducive to an accurate grasp of these pressure test equipment performance, follow-up to meet the demand for satellite missions, in view of this situation to develop this paper, Pressure sensors, transmitters automatic test / calibration system, vision and programs, and applied for the development of the subject. Subject to adopt automatic control technology, data acquisition technology to resonant quartz pressure sensor as a standard pressure sensors, flow control valves in order to - as the main solenoid valve control components, designed to pressure control unit, and other hardware devices and the preparation of automatic control software, the realization of pressure sensors, Pressure transducer test / calibration process automation.In this paper, "pressure sensors, transmitters automatic test / calibration system" issue, discussed the analysis of the pressure sensors, automatic transmitter test system hardware platform, program design; analysis of the major system components - the pressure The control unit design, working principle; analysis of the system software platform structure, functions and procedures of the main part of the control module to achieve the methods described in detail. The article in accordance with the measurement method of assessing the uncertainty of the system and steps to carry out a detailed analysis of uncertainty and assessment, through the end of the experiment data acquisition system repeatability are verified to ensure that the system performance to meet the requirements of design and development.This study shows that the establishment of an intuitive, easy to operate, in the larger framework of continuous measurement of automatic test / calibration system to address the type of gas pressure sensor as well as the work of the media pressure transmitter calibration of the issue and realize the pressure test , The automated verification process to ensure that the space pressure range of accurate and reliable money transfer, in a timely manner to eliminate bias indication of the possible accidents at the same time the pressure range for the realization of the laboratory measurement of pressure, pressure testing of digital automation and lay the foundation for the range Follow-up test launch of the smooth progress of the mission to provide reliable security measures pressure.