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A Magnetoelectric Rotational Speed ​​Sensor Applicable to Large-Space Measurement

A speed sensor, magnetoelectric technology, applied in measuring devices, devices using electric/magnetic methods, speed/acceleration/shock measurement, etc., can solve the problems of small output amplitude and prone to abnormalities, and achieve output signal The effect of increasing the amplitude, improving the quality of the output signal, and reducing the volume

Active Publication Date: 2022-02-01
BEIJING RES INST OF TELEMETRY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the deficiencies and demands of the existing technology, the purpose of the present invention is to provide a magnetoelectric speed sensor suitable for large distance measurement, so as to solve the problem that the output amplitude of the existing speed sensor is small, and the vibration frequency is high and the detection environment is high. Abnormal problems are prone to occur in the high temperature state

Method used

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  • A Magnetoelectric Rotational Speed ​​Sensor Applicable to Large-Space Measurement
  • A Magnetoelectric Rotational Speed ​​Sensor Applicable to Large-Space Measurement
  • A Magnetoelectric Rotational Speed ​​Sensor Applicable to Large-Space Measurement

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0026] This example Figure 1 ~ Figure 3 As shown, a magnetoelectric speed sensor suitable for large distance measurement, including: armature skeleton 1, enameled wire coil 2, housing 3, insulating sleeve 4, insulating gasket 5, lead wire 6, connector 7, screw 8 And the shaft end bolt 10 embedded with the permanent magnet 10-1, the shaft end bolt 10 is installed on the end surface of the measured rotating shaft. The armature frame 1, the enameled wire coil 2, the insulating sleeve 4, and the insulating gasket 51 are assembled into an assembly, the lead wire 6 is used to connect the enameled wire coil 2 and the connector 7, and the armature frame 1, the enameled wire coil 2, The assembly assembled by the insulating sleeve 4 and the insulating gasket 5 is installed inside the housing 3, filled with silicone rubber and potted in the gap, and the ...

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Abstract

A magnetoelectric speed sensor suitable for large distance measurement, including: armature skeleton, enameled wire coil, housing, insulating sleeve, insulating gasket, lead wire, connector, and shaft end bolt embedded with permanent magnet. The armature frame, enameled wire coil, insulating sleeve, and insulating gasket are assembled into an assembly. The assembly is installed inside the housing, and the enameled wire coil and the connector are connected through the lead wire. After the connection is completed, the connector is potted and fixed to the housing. The body forms a magnetoelectric speed sensor sensitive assembly; the shaft end bolt is installed on the rotating shaft to be measured, and a periodic magnetic field change is formed through a permanent magnet. The assembly is installed within the range of the magnetic field change, so that the enameled wire A coil generates a sinusoidal AC signal, which in turn converts the AC cycle into a number of revolutions. The invention has the advantages of realizing large distance non-contact measurement between the sensor and the rotating shaft, large output amplitude and strong vibration resistance.

Description

technical field [0001] The invention relates to a magnetoelectric rotational speed sensor suitable for large distance measurement, belonging to the technical field of testing. Background technique [0002] The aerospace engine is a high-temperature, high-speed rotating mechanical device. Its working state is different from that of ordinary rotating machinery. It is in a harsh environment of high temperature and vibration. Vibration resistance and other characteristics. With the development of my country's aerospace technology, rocket launch missions are increasing year by year. The engine is the source of rocket power. The monitoring of engine working status is very important in test run and flight, which directly affects the evaluation of engine performance. The speed of rocket engine is a reflection of engine operating conditions Whether it is a conventional engine or a liquid oxygen kerosene engine, the turbo pump speed is considered as the preferred parameter for fault d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/44G01P1/02
CPCG01P3/44G01P1/026
Inventor 冯红亮朱永炉赵鑫涛杨海琼韩德龙罗先义李俊赵汗青
Owner BEIJING RES INST OF TELEMETRY
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