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Device for measuring oscillation mode of harmonic oscillator of bell-shaped oscillator type angle rate gyroscope

A technology of angular rate gyroscope and bell-shaped vibrator, which is applied in the direction of measurement device, gyro effect for speed measurement, speed/acceleration/shock measurement, etc. It can solve the problems of not being suitable for large-scale production, not being able to measure dynamic mode shapes, and being expensive. , to achieve the effect of ensuring the accuracy of information fusion, excellent performance and high precision

Inactive Publication Date: 2014-12-24
BEIJING INSTITUTE OF TECHNOLOGYGY +1
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the bell-shaped vibrator-type angular rate gyro resonator vibration-shape measuring device, which has a complex structure, cannot perform dynamic vibration measurement, is not suitable for large-scale production and is expensive, and proposes a simple and feasible method. Mode Shape Measuring Device of Bell-shaped Vibrator Angular Rate Gyro Vibrator

Method used

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  • Device for measuring oscillation mode of harmonic oscillator of bell-shaped oscillator type angle rate gyroscope
  • Device for measuring oscillation mode of harmonic oscillator of bell-shaped oscillator type angle rate gyroscope
  • Device for measuring oscillation mode of harmonic oscillator of bell-shaped oscillator type angle rate gyroscope

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Embodiment Construction

[0015] In the vibration-shape measuring device of a bell-shaped vibrator according to the present invention, each electrode of the ring-shaped electrode unit and each node on the outer wall of the bell-shaped vibrator constitute two pole plates of a capacitor; the signal conversion unit converts the capacitance value of the above-mentioned capacitor into a voltage signal, and The output is connected to the information processing unit; the information processing unit is responsible for fusing and processing the amplitude change signals of each node of the bell-shaped oscillator, so as to obtain the vibration shape of the bell-shaped oscillator.

[0016] The function of the ring-shaped electrode unit is that the eight electrodes evenly distributed around the bell-shaped vibrator and the outer walls of the corresponding bell-shaped vibrator form two plates of the capacitor. Such as figure 1 As shown, according to the working principle of the parallel plate capacitor, the outer wa...

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Abstract

The invention discloses a device for measuring the oscillation mode of a harmonic oscillator of a bell-shaped oscillator type angle rate gyroscope. The device comprises an annular electrode unit, a signal converting unit and an information processing unit. When the bell-shaped oscillator is oscillated, the annular electrode unit is used for sensing the corresponding capacitance change of each corresponding node amplitude at the circumferential direction of the bell-shaped oscillator; the signal converting unit is used for converting a capacitance change signal into a corresponding amplitude voltage signal and outputting to the information processing unit; and the information processing unit is used for carrying out fusion treatment on the amplitudes so as to draw the oscillation mode of the bell-shaped oscillator. The device is simple in system structure, excellent in performance and high in precision, and particularly as the annular electrode unit is introduced, the oscillation mode parameters of the bell-shaped oscillator are effectively obtained without contacting the bell-shaped oscillator.

Description

technical field [0001] The invention relates to a vibration-shape measuring device of an angular rate gyro harmonic oscillator, in particular to a vibration-shape measuring device of a bell-shaped oscillator type angular rate gyro harmonic oscillator. Background technique [0002] As an inertial device sensitive to the angular motion of the carrier, the gyroscope is the core component of the inertial navigation, guidance and control system. Among them, the vibrating gyroscope represents an important inertial technology and has all the inertial qualities. The vibrating gyroscope based on the Coriolis force principle is becoming more and more important in the field of inertial technology, and has been regarded as a new generation of inertial instruments and has been widely valued. Driven by the development of science and technology and market demand, various vibrating gyroscopes have emerged one after another. [0003] The application number is: 201010215745.1, and the patent...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C19/5677
Inventor 刘洪李擎苏中付梦印邓志红刘宁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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