Device and method for providing high-precision pressure standard

• Main Authors: LI LING, CAO DEYAO, LI QINYANG, LYU YUJUAN, CHEN XIAOYU
• Format: Patent
• Language: Chinese; English
• Published: 16.09.2022
• Subjects: MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; PHYSICS; TESTING

The invention discloses a device and a method for providing a high-precision pressure standard. The device comprises a constant-temperature pressure sensing box, a central control board and a temperature adjusting box, wherein the constant-temperature pressure sensing box is fixed in the temperature adjusting box through a mounting support plate, and the central control panel is in communication connection with the temperature adjusting box; according to the invention, three pressure sensors with the precision of 0.002% FS are used as a reference, the pressure sensor with the precision less than or equal to 0.002% FS is used as a standard pressure, the output performance of the tested pressure sensor is compared with the standard pressure, and the output precision is interpreted by adopting a comparison method, so that the test coverage rate is improved. 本发明公开了一种提供高精度压力标准的装置及方法，装置包括恒温感压盒、中心控制板和温度调节盒；其中，所述恒温感压盒通过安装支板固定在温度调节盒中，所述中心控制板与所述温度调节盒通信连接；本发明用3个0.002%FS精度的压力传感器作为基准，可为其≤0.002%FS的压力传感器作为标准压力，将被测压力传感器的输出性能