A metal flexible accelerometer

Abstract

The invention discloses a metal flexible accelerometer. The metal flexible accelerometer comprises a housing, a seat body arranged on the housing, a flexible pendulum assembly, a magnetic steel assembly and pole plates which are installed on the seat body, and an insulator assembly connected to the seat body in a sealed manner. The flexible pendulum assembly comprises a flexible pendulum sheet and a sensitive mass block, the flexible pendulum sheet and the sensitive mass block are connected through a slot manner, and a flexible fine neck on the flexible pendulum sheet is used for supporting the sensitive mass block. The magnetic steel assembly is placed in a magnetic steel pot-shaped cavity of the seat body and is pasted on the seat body. The pole plates comprise an upper pole plate and a lower pole plate, and the pole plates and a signal detection sheet form a signal detection device. Combined with the advantages of a servo pendulum accelerometer and a quartz flexible accelerometer, such as high precision, fast starting and low power, the metal flexible accelerometer realizes the advantages of small size, high precision and high environment resistance. The metal flexible accelerometer is especially applicable to an inertial navigation system high in precision, size, weight, starting time, impact resistance and environment resistance requirements.

Description

technical field [0001] The invention relates to a flexible accelerometer, in particular to a metal flexible accelerometer. Background technique [0002] The accelerometer is a key component in the inertial system. Due to its small size, high precision, fast startup, shock resistance, and high reliability, the flexible accelerometer is widely used in inertial navigation systems such as ships, vehicles, and aircraft, missiles and Inertial guidance systems of rockets, control systems of satellites and spacecraft, etc. In recent years, with the complexity of the application environment of ships and aircraft and the trend of high precision requirements, many fields have put forward higher requirements for accelerometers, not only requiring accelerometers with high precision, small size, light weight, and fast startup , The power is small, and the accelerometer is required to have a long life, strong impact resistance, strong environmental resistance, high reliability, and stable...

AI Technical Summary

Problems solved by technology

Existing quartz flexible accelerometers have high precision, fast start-up, and low power, but their volume, impact resistance, and environmental resistance are moderate, and it is difficult to meet the requirements of stable and reliable work in complex environments

Servo pendulum accelerometers have inherent defects such as medium accuracy, poor impact resistance, low environmental resistance, and easy wear, which limit their application in inertial navigation systems that require high precision, complex application environments, strong impact resistance, and high reliability.

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