A kind of IMU shock-absorbing and heat-insulating device and preparation method based on silica gel

Abstract

The invention discloses a silica gel-based IMU shock-absorbing and heat-insulating device and a preparation method thereof, which belong to the field of inertial navigation systems and can reduce the impact of high-frequency vibrations and temperature changes on the IMU. The IMU shock-absorbing and heat-insulating device includes: a pressure plate, a silicone shock-absorbing heat insulator, an IMU sensor, a cable, a printed circuit board, a bottom plate, the cable is connected to the printed circuit board, the printed circuit board is connected to the IMU sensor, and the IMU sensor is connected to the printed circuit The plate is wrapped in the silica gel shock-absorbing and heat-insulating body, the pressure plate is placed on the top of the silica gel shock-absorbing and heat-insulating body, the silica gel shock-absorbing and heat-insulating body is fixed on the bottom plate, and the bottom plate is connected with the pressure plate. The invention has the advantages of simple and compact structure, convenient and fast installation, high production efficiency, low material cost and good shock absorption and heat insulation effect.

Description

technical field [0001] The invention relates to the technical field of shock absorption and heat insulation of an inertial navigation measurement unit, in particular to a silica gel-based IMU shock absorption and heat insulation device and a preparation method thereof. Background technique [0002] Inertial navigation has many advantages: continuous work, rarely hardware failure; does not require any external information and does not radiate any information, and can navigate in any medium and under any environmental conditions; can output the position, speed and attitude of the carrier and other navigation information; the frequency bandwidth of the system can provide at least 50Hz navigation information, and can track any maneuvering movement of the carrier; the navigation output data is stable and has excellent short-term stability. The core components of the inertial measurement unit (Inertial Measurement Unit, IMU) include: accelerometer and gyroscope, IMU processor, etc...

AI Technical Summary

Problems solved by technology

However, the IMU sensor is light in weight and small in size, and has high requirements on the vibration environment. Different temperature environments will cause errors in the measured values ​​of the IMU, so there are high requirements for its shock absorption and heat insulation structure.

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