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Logic protection amplification circuit-based signal conditioning type efficient eddy current power-measuring system

A technology of amplifying circuit and logic protection, which is applied in the field of signal conditioning high-efficiency eddy current dynamometer system, can solve problems such as signal distortion, and achieve the effects of fast switching speed, avoiding temperature drift, and strong data processing capability

Inactive Publication Date: 2015-12-02
CHENGDU CHENGBANG POWER TEST INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defect that the existing eddy current dynamometer system easily causes signal distortion when amplifying the collected torque signal, and to provide a signal conditioning high-efficiency eddy current dynamometer system based on a logic protection amplifier circuit

Method used

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  • Logic protection amplification circuit-based signal conditioning type efficient eddy current power-measuring system
  • Logic protection amplification circuit-based signal conditioning type efficient eddy current power-measuring system
  • Logic protection amplification circuit-based signal conditioning type efficient eddy current power-measuring system

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Embodiment

[0023] Such as figure 1 As shown, the present invention includes a motor to be tested, a motor controller to be tested, an eddy current loader, a signal control unit, a signal conditioning circuit, a constant temperature controller, a console, a signal collector, a signal conversion unit, a logic protection amplifier circuit, and a power Analyzer and display 12 parts.

[0024] Wherein, the motor controller to be tested is connected with the motor to be tested to control the speed, start and stop of the motor to be tested. The eddy current loader is connected with the motor under test through a coupling, and it is used to load the motor under test. The signal control unit is respectively connected with the motor controller to be tested and the eddy current loader, and it can send control signals to the motor controller to be tested and the eddy current loader, so as to control them.

[0025] The console and the display are man-machine exchange windows, the display is connecte...

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Abstract

The invention discloses a logic protection amplification circuit-based signal conditioning type efficient eddy current power-measuring system. The system is composed of a signal control unit, a to-be-measured motor controller, an eddy current loader and a signal conditioning circuit which are connected with the signal control unit, a to-be-measured motor which is connected with the to-be-measured motor controller, a signal collector which is connected with the to-be-measured motor, a signal conversion unit which is connected with the signal collector, a thermostatic controller which is connected with the eddy current loader, a console which is connected with the signal conditioning circuit, as well as a display and a power analyzer which are connected with the console, wherein the to-be-measured motor is also connected with the eddy current loader. The system is characterized in that the power analyzer is connected with the signal conversion unit through a logic protection amplification circuit. With the system of the invention adopted, distortion-free amplification can be performed on converted digital electric signals, so that signals received by the console can be more clear, and judgment performed by testers can be facilitated.

Description

technical field [0001] The invention relates to a detection system, in particular to a signal conditioning high-efficiency eddy current dynamometer system based on a logic protection amplifier circuit. Background technique [0002] At present, the main means of testing the electric performance of electric vehicles is to use the equipment for testing traditional internal combustion engines to complete loading tests, use testing equipment such as voltmeters and ammeters to perform data detection of electrical parameters, and then process and analyze data after the detection is completed. However, there is a big difference between the test of the electric system and the test of the traditional engine. The traditional internal combustion engine mainly detects the characteristics of the motor's speed and torque, and its corresponding parameters such as power factor, line voltage, line current, and active power cannot be directly calculated. Moreover, the real-time performance of ...

Claims

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Application Information

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IPC IPC(8): G01R31/34
Inventor 程社林余仁伟程振寰杨忠敏
Owner CHENGDU CHENGBANG POWER TEST INSTR
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