Benchmarking test tool of multiple temperature sensors and test method thereof

Abstract

The invention discloses a benchmarking test tool of multiple temperature sensors. The benchmarking test tool of multiple temperature sensors includes a shelf, a cover plate and a connecting rod, wherein the cover plate is arranged above the shelf and can shift up and down relative to the shelf so as to press down the multiple temperature sensors; the connecting rod penetrates through the shelf andthe cover plate; a plurality of mounting holes for mounting the temperature sensors are formed in the shelf; and two ends of the connecting rod are each equipped with a fastener for locking the shelfand the cover plate. The invention also discloses a benchmarking test method of multiple temperature sensors. The benchmarking test tool of multiple temperature sensors and the test method thereof can guarantee that the depth that probes of the multiple temperature sensors are immersed into a constant temperature working medium is consistent, enable the multiple temperature sensors to make real-time benchmarking tests in the same test conditions, can effectively eliminate the error caused by difference of conditions during the testing process, and can reduce the appeared measuring deviation during the steady state and dynamic measurement process so as to enable the benchmarking test results of the multiple temperature sensors to be more reliable and improve the reproducibility of repeatedtests.

Description

technical field [0001] The invention relates to the technical field of temperature sensor testing, more specifically, it relates to a benchmarking test tool and method for a plurality of temperature sensors. Background technique [0002] The working accuracy and reliability of electronic control parts have a great impact on the economic performance and emission performance of the whole vehicle. With the tightening of the national automobile emission policy, the electronic control after-treatment parts need to undergo strict inspection before being equipped with the whole vehicle. In the testing work of sensors and actuators, good tooling can often make the testing work twice the result with half the effort and greatly improve the testing work efficiency. [0003] At present, there is no special tooling for temperature sensor benchmarking test. The traditional method is to hang the temperature sensor to be benchmarked with a rope and put it into the test port of the constant ...

AI Technical Summary

Problems solved by technology

When using traditional technology to do benchmarking test analysis of multiple temperature sensor samples, it is often difficult to ensure that the depths of multiple temperature sensors placed in the constant temperature working fluid are consistent, and the depth deviation of the sensor probes immersed in the constant temperature working fluid often leads to steady state And the measurement deviation occurs in the dynamic measurement, which interferes with the technician's judgment. Not only that, but the traditional technology also has the problem of poor reproducibility of the repeated test of the temperature sensor

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