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Torque motor driver for electro-hydraulic servo valve testing

A technology of electro-hydraulic servo valve and torque motor, applied in instruments, adjusting electrical variables, control/regulating systems, etc., can solve the problems of narrow output range and low precision

Active Publication Date: 2017-05-31
XIAN AERO ENGINE CONTROLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current driving method usually relies on the host computer board and is used on the test assembly platform. Its output range is narrow and the accuracy is low. It is limited to using the host computer to communicate to adjust the output current, and it needs a dedicated DC power supply to use.

Method used

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  • Torque motor driver for electro-hydraulic servo valve testing
  • Torque motor driver for electro-hydraulic servo valve testing
  • Torque motor driver for electro-hydraulic servo valve testing

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Embodiment Construction

[0022] Provides a torque motor drive instrument for testing electro-hydraulic servo valves, including a box body, coil positive and negative terminal assembly, ammeter, power switch, power socket, precision potentiometer and integrated circuit board; the coil positive and negative terminal assembly , ammeter, power switch, power socket, integrated circuit board and precision potentiometer are all fixedly installed on the box body; the integrated circuit board is integrated with an AC-to-DC power supply module, an amplifying bias circuit module and a voltage-current conversion circuit module; the power switch has indicator light; the precision potentiometer has an adjustment knob; the power socket (3) is used to connect the 220V mains and connect the 220V mains to the AC-to-DC power module of the integrated circuit board; the power switch (2) controls the power socket (3 ) on and off;

[0023] The AC to DC power module converts 220V mains power into positive and negative 15V ou...

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PUM

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Abstract

The invention belongs to an electro-hydraulic servo valve testing technology, particularly relates to a current output driver achieving deep negative feedback, wide range output and adjustable precision, and belongs to the technical field of testing. The invention provides a torque motor driver for electro-hydraulic servo valve testing. The toque motor driver comprises a box, a coil positive and negative connector assembly, an ammeter, a power switch, a power socket, a precision potentiometer and an integrated circuit plate. The torque motor driver achieves deep negative feedback, wide range output and adjustable precision and has a digital display function, so that the requirements of electro-hydraulic servo valve torque motor performance testing are met, wherein the requirements are that carrying is convenient, 220 V alternating current power supply is achieved, a dual-redundancy electro-hydraulic servo valve can be driven, the output current range ranges from -400 mA to 400 mA, and the precision is manually adjusted from -1 mA to 1 mA.

Description

technical field [0001] The invention belongs to the testing technology of an electro-hydraulic servo valve, in particular to a current output drive instrument with deep negative feedback, wide-range output and precise adjustment, and belongs to the technical field of testing. Background technique [0002] At present, there is no torque motor driver specifically for testing electro-hydraulic servo valves on the market. The current driving method usually relies on the host computer board and is used on the test assembly platform. Its output range is narrow and the accuracy is low. It is limited to using the host computer to communicate to adjust the output current, and it needs a dedicated DC power supply to use. Contents of the invention [0003] The purpose of the present invention is to propose a current output drive instrument with deep negative feedback, wide range output, precision adjustable and digital display function, so as to meet the requirements of electro-hydra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56
Inventor 杨晓强赵小龙刘意薛国杰安理会
Owner XIAN AERO ENGINE CONTROLS
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