Handheld microwave vibration measurement system

Abstract

The invention provides a handheld microwave vibration measurement system, and the system comprises an indication and positioning module, a microwave radar transceiver module, a control module, a signal acquisition and processing module, an anti-shake module, a display and data storage module and a power supply module. The power supply module is used for supplying power; the microwave radar receiving and transmitting module is used for generating and transmitting a single-frequency continuous wave microwave signal and receiving an electromagnetic echo scattered by a target to obtain a zero intermediate frequency baseband signal; the signal acquisition and processing module is used for acquiring a zero intermediate frequency baseband signal output by the microwave radar transceiver module and extracting and analyzing vibration information; the control module is used for controlling the start and stop of the system, setting parameters and controlling the operation and data transmission ofeach module; the anti-shake module is used for eliminating the influence of shake such as handholding on a measurement result; the indication and positioning module is used for assisting in indicating and positioning a vibration test target and / or a test point. The technical problems that an existing vibration measuring instrument is poor in portability, large in size and power consumption, highin cost, high in test environment requirement, limited in application range and the like are solved.

Description

technical field [0001] The invention relates to the technical field of vibration measuring instruments, in particular to a handheld microwave vibration measuring system. Background technique [0002] Vibration measurement is an important way and necessary link to realize structural mechanical performance testing, health monitoring and equipment fault diagnosis, and other micro-motion feature extraction. According to the sensing type, it can be divided into contact type and non-contact type vibration measurement. Among them, the contact type sensor is mainly the acceleration sensor, which is the most widely used, but the non-contact type measurement has advantages in the aspects of sensor installation simplicity and light structure measurement. Clear advantages, such as laser displacement sensors. In practical application, a convenient, fast and wide-ranging vibration measuring instrument (referred to as "vibration meter") has important application value and engineering appl...

AI Technical Summary

Problems solved by technology

However, the power consumption of the above scheme is relatively large, and the requirements for the measurement environment are relatively high.

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