Calibration apparatus and calibration method applied to vibration sensor

Abstract

The invention discloses a calibration apparatus applied to a vibration sensor. The calibration apparatus comprises a control acquisition instrument and a vibration standard device in signal connection with the control acquisition instrument. The control acquisition instrument comprises a control module and an acquisition module; a network terminal transmits signals to the vibration standard device through the control module to enable the vibration standard device to generate corresponding vibration; the vibration standard device outputs standard vibration signals and transmits the standard vibration signals to the network terminal through the acquisition module; and at the same time, a vibration sensor to be detected senses the vibration signals generated by the vibration standard device and transmits the vibration signals to the network terminal through the acquisition module. According to the invention, work of the vibration standard device is controlled remotely through the network terminal, comparison processing is performed on the standard vibration signals and the vibration signals transmitted by the vibration sensor to be detected in the network terminal, handover of the vibration senor to be detected to a metering calibration mechanism is unnecessary, calibration can be realized in a work field, the structure is simple, and the portability is high. The invention also simultaneously provides a calibration method applied to a vibration sensor.

Description

technical field [0001] The invention relates to the field of vibration measurement calibration, in particular to a verification device and a verification method applied to vibration sensors. Background technique [0002] As an important part of testing technology, vibration sensor can collect the vibration signal of the measured object in real time, so it is widely used in various fields. The vibration signal detected by the vibration sensor contains rich information about the state changes and fault characteristics of monitoring areas such as mechanical equipment, building structures, oil pipelines, and high-speed trains. It is an important basis for identifying the causes of failures, taking preventive measures, and realizing safety warnings. It can be seen that the monitoring of vibration signals plays an extremely important role, which is directly related to the accuracy of diagnostic results. The traceability of the value of the vibration sensor is an important way to...

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Problems solved by technology

[0003] At present, when the vibration sensor is traced to the source of its value, it must be disassembled and then sent to a metrological verification agency for effective verification, which brings a lot of inconvenience to many departments. Vibration monitoring of unit, used for seismic exploration in oil exploration field, used for vibration analysis of railways and bridges in the transportation sector, used for measuring the top sloshing of high-rise buildings in the construction industry, and used for vibration sensors for measuring body vibration parameters in high-speed rail, due to constraints Due to the on-site test conditions, test environment and test methods, it is impossible to disassemble and send for inspection, which affects the traceability requirements of its value, and cannot guarantee the accuracy of the value of the monitored vibration parameters. This will bring extreme safety monitoring to daily production and life. big hidden danger

[0004] Even if some vibration sensors are easy to disassemble, a large number of acquisition data lines or a bulky background data acquisition and processing system will make the value traceability work the most troublesome thing in the year, not to mention that the equipment is easily damaged during transportation and moving. It will bring great economic losses to the enterprise. According to incomplete statistics, as many as 30% of sensor damage accidents are caused by the inspection and transportation process every year, which makes many enterprises voluntarily give up the annual traceability plan

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