A verification system of a small magnetoelectric speed sensor for aero-engine

A technology of aero-engine and speed sensor, which is applied in the testing/calibration of speed/acceleration/shock measuring equipment, instruments, speed/acceleration/shock measurement, etc., to achieve high output speed accuracy, improve accuracy, ensure accuracy and reliability Effect
CN103018490BActive Publication Date: 2016-11-30CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA HANGFA GUIZHOU LIYANG AVIATION POWER CO LTD
Publication Date
2016-11-30

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Abstract

The invention discloses a verification system of a small magnetoelectric speed sensor for an aero-engine, which comprises a DC motor standard speed control output system and a verification fixture, wherein: the DC motor standard speed control output system includes a single-chip microcomputer and a small keyboard connected with the single-chip microcomputer , display output A, display output B, D / A output control, A / D feedback control, D / A output control and A / D feedback control are all connected to the DC motor, A / D feedback control and DC motor are also connected There is a measuring sensor, and the output shaft of the DC motor is connected with the fixed threaded connection seat on the verification fixture. The system utilizes mature single-chip computer control technology and adopts closed-loop control to realize the verification and calibration of small magnetoelectric speed sensors, ensuring the accuracy and reliability of aero-engine speed measurement.
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Description

technical field

[0001] The invention belongs to the technical field of aero-engine testing, and in particular relates to a verification system for a small-sized magnetoelectric rotational speed sensor for an aero-engine. Background technique

[0002] Due to the advantages of small size, high sensitivity, strong anti-interference ability, stability and reliability, and not easy to damage, magnetoelectric speed sensors have been widely used in domestic and foreign aero-engine industries. Special verification standard equipment and methods cannot verify this kind of small magnetoelectric speed sensor, but simply check the appearance, insulation performance and coil resistance of the small magnetoelectric speed sensor, but the real output signal of the sensor cannot be verified The corresponding relationship between frequency and speed, output voltage amplitude and other key parameters, so it is very necessary to develop a set of verification system equipment for this small magn...

Claims

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