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Molecule-type liquid-ring angular accelerometer

A technology of angular accelerometer and liquid ring, which is applied in the direction of acceleration measurement, measuring device, and instrument by using inertial force, which can solve the problems of high price, poor signal quality or reliability, and complicated testing, and achieve simple structure and light weight Effect

Inactive Publication Date: 2002-09-25
中国航天科工集团第三研究院第三十三研究所
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AI Technical Summary

Problems solved by technology

[0002] At present, in aviation, aerospace and other fields, the test angular acceleration signal is usually obtained by electronic or electromagnetic differentiation of the output data of the rate gyroscope, but the quality or reliability of the signal obtained in this way is poor
In addition, there is also a solution to use several linear accelerometers to measure and then obtain angular acceleration signals through information processing. This method is complicated to test and expensive
The angular accelerometer that is directly sensitive to the angular acceleration signal has not yet been found

Method used

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  • Molecule-type liquid-ring angular accelerometer
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Embodiment Construction

[0018] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0019] Such as figure 1 , 2 As shown, the embodiment of the present invention is composed of a liquid ring and an amplifier. The liquid ring includes a working fluid 1, a ring ring 2, a solvent compensator 4, an electrode 5, and a converter 6. The ring ring 2 and the solvent compensator 4 are made of glass Or made of metal (such as stainless steel, etc.), which are connected to each other by fusion bonding or welding, and are connected by a capillary tube 3. The ring 2 is filled with working liquid 1, which is composed of acetone or acetone added with organic solvents such as toluene; when the temperature changes, the volume of the working liquid 1 changes, and the liquid and solvent in the ring 2 are realized through the capillary 3 The interconnection of the liquid in the compensator 4 compensates for the volume change of the liquid in the ring 2 caused by te...

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Abstract

The molecule-type liquid-ring angular accelerometer based on liquid double-electrical double layer theory and electrokinetics theory is used for sensing angular acceleration signal in input shaft direction and to output electric signal proportional directly with the said angular acceleration signal. It consists of a main liquid ring and amplifier, the liquid ring as the kernel part includes annular ring, solvent compensator connected to inner ring of the annular ring, work liquid filling the ring, microporous converter inside the annular ring and electrodes connected to the amplifier. The present invention has no any mechanical rotation part, can measure the polarity of servo system and can be used for raising the control reliability and antijamming capability.

Description

Technical field [0001] The invention relates to an angular accelerometer, in particular a molecular liquid ring type angular accelerometer developed by using liquid double layer theory and electrokinetic theory. Background technique [0002] At present, in aviation, aerospace and other fields, testing angular acceleration signals is usually obtained by electronic or electromagnetic differentiation of the output data of rate gyros, but the quality or reliability of the signals obtained in this way is poor. In addition, there is also a scheme that uses several linear accelerometers to measure and then obtain the angular acceleration signal through information processing. This method is complicated to test and expensive. The angular accelerometer that directly senses the angular acceleration signal has not yet been discovered. Summary of the invention [0003] The technical solution of the present invention is to provide a molecular liquid ring angular accelerometer that is small, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/00G01P15/02
Inventor 洪峰吴向荣周蜜孙荣凯
Owner 中国航天科工集团第三研究院第三十三研究所
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