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Fiber-optic gyroscope eigenfrequency measuring equipment and application thereof

A technology of fiber optic gyroscope and eigenfrequency, which is applied in the direction of measuring devices and instruments, can solve the problems of insufficient intuitive measurement, complicated measurement process, and insufficient precision, and achieve the effect of convenient transportation and carrying, high measurement accuracy, and organized layout

Inactive Publication Date: 2016-07-13
上海傲世控制科技股份有限公司
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Problems solved by technology

However, this measurement method is not intuitive enough, the measurement process is complicated, and the accuracy is not enough

Method used

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  • Fiber-optic gyroscope eigenfrequency measuring equipment and application thereof
  • Fiber-optic gyroscope eigenfrequency measuring equipment and application thereof
  • Fiber-optic gyroscope eigenfrequency measuring equipment and application thereof

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Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0038] A fiber optic gyro eigenfrequency measuring device, such as figure 1 As shown, it includes a digital-to-analog converter 2 and an operational amplifier circuit 3 connected to each other, and also includes a digital square wave signal generation component and an oscilloscope 6. The operational amplifier circuit 3 is connected to the input end of the fiber optic gyroscope 7, and the output end of the optical fiber gyroscope 7 is connected to the input end of the optical fiber gyroscope. The oscilloscope 6 is connected, and the digital square wave signal generating component is co...

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Abstract

The invention relates to fiber-optic gyroscope eigenfrequency measuring equipment and application thereof.The equipment comprises a digital-to-analog converter, an operational amplifier circuit, a digital square signal generation module and an oscilloscope.The operational amplifier circuit is connected with an input end of a fiber-optic gyroscope, an output end of the fiber-optic gyroscope is connected with the oscilloscope, and the digital square signal generation module is connected with the digital-to-analog converter.Compared with the prior art, the fiber-optic gyroscope eigenfrequency measuring equipment and application thereof have the advantages that by adoption of the oscilloscope, whether an output waveform of the fiber-optic gyroscope is a comb-like waveform or not is judged to determine whether a frequency of a modulation square wave is an eigenfrequency or not, and high measurement precision is achieved.

Description

technical field [0001] The invention relates to a fiber optic gyroscope performance debugging technology, in particular to a fiber optic gyroscope eigenfrequency measuring device and its application. Background technique [0002] The fiber optic gyroscope is an angular rate sensor based on the Sagnac effect, and is currently the main sensor used to determine the spatial motion attitude of moving objects. The Sagnac effect means that two beams of light propagate towards each other in a closed fiber ring. When the fiber ring rotates, a Sagnac phase shift proportional to the rotation angular rate occurs between the two light waves. The time for light to propagate in the fiber ring is the eigenperiod τ, and the eigenfrequency is: [0003] 1 2 τ [0004] When the modulation frequency of the FOG is equal to the eigenfrequency of the FOG, the performance of the FOG is optimal. However, there is currently a lack of high-prec...

Claims

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Application Information

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IPC IPC(8): G01C25/00
Inventor 李阳李佳程彭以新甘晨君黄芳
Owner 上海傲世控制科技股份有限公司
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