Dynamic calibration system and method of torque and rotating speed measuring device

Abstract

The invention discloses a dynamic calibration system and method of a torque and rotating speed measuring device. The system comprises a controllable driving device, a standard torque and rotating speed measuring device, a calibrated torque and rotating speed measuring device and a variable load which are sequentially arranged and coaxially installed. Winding couplers are installed between the standard torque and rotating speed measuring device and the calibrated torque and rotating speed measuring device and between the calibrated torque and rotating speed measuring device and the variable load respectively. And the controllable driving device, the standard torque rotating speed measuring device and the variable load are all electrically connected with a data acquisition and analysis control system. In the invention, indication values of the standard torque rotating speed measuring device and the calibrated torque rotating speed measuring device are compared to realize quantity value calibration; and dynamic synchronous calibration of torque and rotating speed parameters is completed through one-time installation, calibration time is greatly shortened, a problem that the calibration state and the actual use state of a calibrated instrument are inconsistent is solved, and accuracy and reliability of torque and rotating speed parameter values are guaranteed.

Description

technical field [0001] The invention relates to the field of metrology, in particular to a dynamic calibration system capable of realizing the dynamic calibration of the value of a torque speed measuring device and solving the problem of inconsistency between the traceability result of the value and the actual use state. Background technique [0002] At present, the torque speed measuring device has been widely used in the measurement of torque, speed, power and other parameters of high-speed rotating motors, pneumatic motors, hydraulic motors, internal combustion engines and other prime movers at home and abroad. The product performance of the product has very important guiding significance, but the actual parameter calibration of the torque speed measurement device has the following problems: [0003] 1. The static calibration of the torque parameters is inconsistent with the actual use of the device; [0004] 2. Torque parameters and rotational speed parameters are calib...

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Problems solved by technology

[0006] The purpose of the present invention is to propose a dynamic calibration system and method for torque and speed measurement devices, which can greatly improve Reduce the cost of traceability of the value and greatly improve the accuracy of the value; through the closed-loop control of the controllable drive device and load, the device enables the shaft system to operate reliably according to the calibration point requirements, and realizes the dynamic calibration of torque and speed parameters

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