Handheld Microwave Vibration Measurement System

Abstract

The invention provides a hand-held microwave vibration measurement system, which includes 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 module. The power module is used for Power supply; the microwave radar transceiver module is used to generate and transmit single-frequency continuous wave microwave signals, and receive the electromagnetic echo scattered by the target to obtain the zero-IF baseband signal; the signal acquisition and processing module is used to collect the zero-IF baseband output by the microwave radar transceiver module signal, and carry out vibration information extraction and analysis; the control module is used to control the start and stop of the system, set parameters, control the operation of each module and data transmission; the anti-shake module is used to eliminate the influence of hand-held jitter on the measurement results; The positioning module is used to assist in indicating and locating vibration test targets and / or measuring points. The invention solves the technical problems of poor portability, large volume and power consumption, high cost, high test environment requirements and limited application range of existing vibration measuring instruments.

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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