Full digital temperature control device suitable for optical fiber gyro inertial measurement combination

A fiber optic gyroscope and temperature control device technology, applied in temperature control, non-electric variable control, Sagnac effect gyroscope, etc., can solve the problem of low precision, inability to achieve good temperature control effect, complex DC line structure, etc. problem, to achieve the effect of high stability, high precision, easy realization, and strong anti-interference ability

Inactive Publication Date: 2007-08-29
BEIHANG UNIV
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Problems solved by technology

[0003] The on/off and DC lines of the traditional analog temperature control device have disadvantage

Method used

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  • Full digital temperature control device suitable for optical fiber gyro inertial measurement combination
  • Full digital temperature control device suitable for optical fiber gyro inertial measurement combination
  • Full digital temperature control device suitable for optical fiber gyro inertial measurement combination

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] Referring to shown in Fig. 1, the present invention is a kind of all-digital temperature control device applicable to the fiber optic gyroscope inertial measurement combination, consists of seven digital temperature sensors (temperature sensor A U9 on the X-axis fiber optic gyroscope, temperature sensor A on the Y-axis fiber optic gyroscope) Sensor B U10, temperature sensor C U11 on the Z-axis fiber optic gyroscope, temperature sensor D U12 on the X-axis accelerometer, temperature sensor E U13 on the Y-axis accelerometer, temperature sensor F U14 on the Z-axis accelerometer and the skeleton body temperature sensor G U15), a DSP processor, two optocouplers (optocoupler A U16, optocoupler B U17), seven switching power amplifiers and power circuits, the fiber optic gyroscope inertial measurement combination of the present invention It is to control the te...

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Abstract

The invention discloses a full digital temperature controller applied to optical fiber gyroscope inertia measurement combination, comprising seven temperature sensors, one DSP processor, two photoelectric coupler, seven-channel switch power amplifier and power supply circuit, where the DSP processor compares eN=TN-tn to control PWM wave generation, where tn is working temperature collected real-timely by temperature sensor and TN is set temperature, so as to drive heating component to make automatic adjustment control of heating current, which forms a closed-loop feedback device. And the invention controls working temperatures of the heating component and the controlled object, making them work at constant temperature, thus overcoming the effect of environmental temperature change on output accuracy of inertia components.

Description

technical field [0001] The invention relates to a temperature control device, more particularly, to an all-digital temperature control device suitable for fiber optic gyroscope inertial measurement combination. Background technique [0002] Fiber optic gyro will be widely used in military (satellites, missiles, aircraft, ships), bio-sensing and industrial automation due to its advantages of all-solid-state structure, fast start-up, wide dynamic range, impact resistance, small size and low cost. . Especially with the continuous progress of its engineering application, the fiber optic gyroscope will gradually replace the mechanical gyroscope in the strapdown inertial navigation system. However, the output parameters of the inertial measurement combination composed of a fiber optic gyroscope and a quartz flexible accelerometer will be seriously disturbed by changes in the external environment temperature. In order to keep the external and internal parts of the inertial device ...

Claims

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Application Information

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IPC IPC(8): G05D23/20G01C19/72
Inventor 宋凝芳陈永奇任卓恒朱奎宝祝露峰乔鹏任磊
Owner BEIHANG UNIV
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