A fully automated comparative calibration system and method for static and quasi-static ultra-high pressure sensors

By using a dual-mode ultra-high pressure source module and a synchronous high-precision automatic acquisition module, fully automatic comparative calibration of static and quasi-static ultra-high pressure sensors is achieved, solving the problems of fragmented sensor calibration data and low efficiency, and realizing an efficient and automatic calibration process.

CN122306306APending Publication Date: 2026-06-30INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF DEFENSE ENG ACADEMY OF MILITARY SCI PLA CHINA
Filing Date
2026-05-25
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The static and dynamic calibration of existing ultra-high pressure sensors cannot be directly correlated, resulting in data fragmentation, low calibration efficiency, and technical bottlenecks that prevent automation of high-pressure calibration.

Method used

It adopts a dual-mode ultra-high pressure source module, a fast switching mechanism, a reference metering unit, and a synchronous high-precision automatic acquisition module to realize the automatic switching and data association between static and quasi-static calibration. Through the coordinated control of the static piston pressure source and the quasi-static drop hammer pressure source, a consistency report is output.

Benefits of technology

It enables fully automated comparative calibration of static and quasi-static ultra-high pressure sensors, improving calibration efficiency, ensuring dynamic and static consistency of sensors, generating consistency reports, and adapting to various models of high pressure sensors.

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Abstract

This invention belongs to the field of pressure sensor metrology and calibration, specifically relating to a fully automatic comparative calibration system and method for static and quasi-static ultra-high pressure sensors. It includes a dual-mode ultra-high pressure source module, a rapid switching mechanism, a reference metrology unit, a synchronous high-precision automatic acquisition module, and a data analysis terminal. The static ultra-high pressure subsystem in the dual-mode ultra-high pressure source module uses a manually driven piston-type pressure source, outputting a static pressure of 0-800 MPa. The rapid switching mechanism only requires manual installation of the ultra-high pressure sensor to be calibrated to different high-pressure sources. The reference metrology unit, synchronous high-precision automatic acquisition module, and data analysis terminal are completely shared, making the switching time between static and quasi-static calibration of the ultra-high pressure sensor less than 30 seconds. This effectively solves the problem of inaccurate data acquisition for near-explosion zone explosion damage assessment, forming a fully automatic comparative calibration system and method for static and quasi-static ultra-high pressure sensors.
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