Method for measuring rod drop time of linear motor control rod drive mechanism

Abstract

The invention discloses a method for measuring the rod drop time of a linear motor control rod drive mechanism. Measurement is carried out by using back electromagnetic force voltage generated by a magnetic line cut by the linear motor control rod drive mechanism after being powered off, and the control rod drive mechanism is connected with a control power supply. The method comprises the steps of (1) pre-arranging a test point on a connection line of the control rod drive mechanism and the control power supply; (2) connecting a waveform display device and the test point, and collecting a back electromagnetic force voltage signal generated by the magnetic line cut by the linear motor control rod drive mechanism after being powered off; (3) displaying a corresponding waveform image by the waveform display device on the basis of the collected back electromagnetic force voltage signal; and (4) calculating the rod drop time of the control rod drive mechanism on the basis of the waveform image displayed by the waveform display device, thereby achieving the technical effects that measurement operation is simple, data is stable and easy to read and the measurement result is accurate.

Description

technical field [0001] The invention relates to the field of nuclear power, in particular to a method for measuring the rod drop time of a linear motor type control rod drive mechanism. Background technique [0002] The rod drop time of the reactor control rod drive mechanism is an important parameter for verifying the performance of the drive mechanism and the drive line. The rod drop time of the original drive mechanism is mostly measured with special rod position detection coils and test equipment, which requires additional equipment and wiring, which increases the complexity of the test. [0003] To sum up, in the process of realizing the technical solution of the invention of the present application, the inventor of the present application found that the above-mentioned technology has at least the following technical problems: [0004] In the prior art, the existing method for measuring the rod drop time of the reactor control rod drive mechanism has the technical prob...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a method for measuring the rod drop time of a linear motor type control rod drive mechanism, which solves the technical problems of complex operation and low measurement accuracy in the existing method for measuring the rod drop time of the reactor control rod drive mechanism, and realizes Simple measurement operation, stable and easy-to-read data, accurate measurement results and technical effects

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