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Calibration system of ship accelerometer

A technology of accelerometer and speed, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, and measuring devices, etc. issues of reliability and accuracy

Pending Publication Date: 2019-09-20
NO 719 RES INST CHINA SHIPBUILDING IND
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Problems solved by technology

[0005] Aiming at the problems existing in the prior art, the embodiment of the present invention provides a calibration system of a ship accelerometer, which is used to solve the problem that the prior art cannot conveniently and quickly perform measurement calibration on an accelerometer instrument that is fixedly installed on a ship and is difficult to disassemble. , leading to technical problems that make it difficult to ensure the reliability and accuracy of data collected by the accelerometer

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  • Calibration system of ship accelerometer
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Embodiment Construction

[0030] In order to solve the technical problem that the existing technology cannot conveniently and quickly measure and calibrate the accelerometer fixedly installed on the ship and difficult to disassemble, which makes it difficult to ensure the reliability and accuracy of the data collected by the accelerometer, the embodiment of the present invention provides a A calibration system for a ship accelerometer, said system comprising: a controller connected to an input end of a signal generator through a signal line for sending a control signal to said signal generator; a signal generator, said signal generator The output end is connected to the input end of the power amplifier through a signal line, and is used to output the excitation signal at the calibration frequency according to the control signal; the power amplifier, the output end of the power amplifier is connected to the input end of the exciter through a signal line, It is used to receive and amplify the excitation s...

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Abstract

The invention provides a calibration system of a ship accelerometer. The calibration system comprises that a controller sends a control signal to a signal generator; the signal generator outputs an excitation signal in the calibration frequency according to the control signal; a power amplifier receives and amplifies the excitation signal; an exciter is used to generate a constant vibration signal according to the excitation signal; a force sensor is used to transmit the vibration signal to a ship structure; a standard wireless accelerometer is installed at one side of the calibrated accelerometer, and a first speed response value is generated according to the vibration signal and sent to the controller; and the calibrated accelerometer generates a second speed response value according to the vibration signal, and sends the second speed response value to the controller. The controller calibrates a calibration factor of the calibrated accelerometer according to the first and second speed response values.

Description

technical field [0001] The invention belongs to the technical field of measurement calibration, in particular to a calibration system of a ship accelerometer. Background technique [0002] In many fields, as an important monitoring device, instruments play an important role in characterizing the performance status and fault status of the monitored products. Therefore, when the instrument is working online, there are clear requirements for the accuracy of value collection. Usually, a metering cycle is specified for each meter, and the metering cycle is generally required to be one year. [0003] For the instruments used in the laboratory or portable instruments, the measurement and calibration is relatively convenient, but for the measurement and calibration of the instruments fixedly installed on the ship, it needs to be disassembled, sent for inspection, and reinstalled. trouble. Especially for instruments that require airtightness, instruments that are inconvenient to d...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
CPCG01P21/00
Inventor 刘记心寇琼月夏建超
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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