Multi-heating point coordinate temperature control method for realizing uniform temperature field of gyroscope

Abstract

The invention relates to a multi-heating point coordinate temperature control method for realizing a high-accurate uniform temperature field of a gyroscope. According to the method, a target uniform temperature field can be quickly established in the gyroscope and maintained high-accurately. The method is characterized in that a PWM (Pulse-Width Modulation) signal drives an MOS (Metal Oxide Semiconductor) power transistor to output control quantity to heating plates in a corresponding control device according the following steps of (1) heating each heating point with the maximum power until the temperature of any one heating point of a controlled device is heat to be 85 percent of the target temperature sTarget from the room temperature; (2) adopting a multi-heating point coordinate heating strategy to finally enable the temperatures of the heating points to be consistent, and forming the uniform temperature field; (3) after forming the uniform temperature field, carrying out high-accurate temperature maintenance. The multi-heating point coordinate temperature control method for realizing the high-accurate uniform temperature field of the gyroscope has the advantages that an accurate heat radiation model of an object has no need to be established, the debugging can be carried out easily, the robustness is strong, the man-machine interaction is reasonable, and the like.

Description

technical field [0001] The invention belongs to the temperature control technology, in particular to a temperature control method and device for a uniform temperature field of a gyroscope in a complex structure. Background technique [0002] Gyroscope is the key equipment of inertial navigation. Since it generally has a large temperature drift coefficient, the stability of temperature has a great influence on the accuracy of inertial navigation. In order to provide a high-precision uniform temperature environment for the gyroscope, it is necessary to control the high-precision uniform temperature field of the gyroscope. [0003] The technical difficulties in realizing the high-precision uniform temperature field control of the gyroscope are: 1) There is no cold junction and the structure is complex. The heat source of the gyroscope is divided into the heat generated by the gyro and the heat generated by the heating plate, but there is no cooling source, and it can only be c...

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Problems solved by technology

[0003] The technical difficulties in realizing the high-precision uniform temperature field control of the gyroscope are: 1) There is no cold junction and the structure is complex

The heat source of the gyroscope is divided into the heat generated by the gyro and the heat generated by the heating plate, but there is no cooling source, and it can only be cooled by heat dissipation with the external environment, that is, active heating and passive heat

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