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Calibrator for calibrating revolution meter of diesel engine

A technology of tachometer and calibrator, which is applied in the field of calibrating instruments, and can solve problems such as difficult measurement of diesel engine tachometers

Inactive Publication Date: 2012-07-04
苏州工业园区广福汽保机电设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a precision instrument for calibrating the diesel engine tachometer to solve the problem that the diesel engine tachometer is difficult to measure in view of the shortcomings of the existing measuring instruments in measuring the diesel engine tachometer

Method used

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  • Calibrator for calibrating revolution meter of diesel engine
  • Calibrator for calibrating revolution meter of diesel engine

Examples

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Effect test

Embodiment Construction

[0012] Design a calibration instrument for calibrating the diesel engine tachometer, which simulates the vibration signal generated by the high-pressure fuel injection of the diesel engine to measure the precision instrument of the diesel engine tachometer. It has the characteristics of good stability, reliability, and preset speed. The production and inspection of diesel engine tachometers provide reliable technical support.

[0013] Such as figure 1 As shown, the calibrator for calibrating the diesel engine tachometer, the microprocessor 6 is connected to the frequency converter 3 through the RS485 interface circuit 2, the frequency converter 3 is provided with a display unit 1, the frequency converter 3 is connected to the AC motor 4, and the AC motor 4 is connected to the The diesel engine simulator 5 is driven and connected, the signal end of the diesel engine simulator 5 is connected to the microprocessor 6, and the microprocessor 6 is respectively connected to the displ...

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Abstract

The invention provides a calibrator for calibrating a revolution meter of a diesel engine. A microprocessor is connected with a frequency converter via an RS485 interface circuit, the frequency converter is connected with an alternating-current motor, the alternating-current motor is in driving connection with a simulator of the diesel engine, a signal end of the simulator of the diesel engine is connected with the microprocessor, and the microprocessor is respectively connected with a display circuit and a keyboard circuit via interface circuits. The microprocessor is communicated with the frequency converter via the RS485 interface circuit so as to set the frequency of output revolution speed, accurate output of the frequency converter controls the alternating-current motor to generate stable revolution speed, the alternating-current motor drives oil spraying of the simulator of the diesel engine to generate a vibration signal on a wall of an oil spraying tube, the tested meter is clamped on the wall of the oil spraying tube so that the revolution speed of the meter is measured, and accuracy and reliability of the meter are checked.

Description

technical field [0001] The invention relates to a calibrating instrument for calibrating a diesel engine tachometer. Background technique [0002] With the continuous development of the automobile industry, diesel engines are used more and more widely, and higher requirements are put forward for the performance of diesel engines, especially the stability and reliability of engine speed are more concerned. Therefore, in order to detect the engine speed performance, a precision instrument for calibrating the diesel engine tachometer is designed. The high-precision analog speed can meet the purpose of measuring the diesel engine tachometer, and it can also be applied to the production inspection and after-sales maintenance of the engine. , which will greatly increase the scope of application of the product. Contents of the invention [0003] The purpose of the present invention is to provide a precision instrument for calibrating the diesel engine tachometer to solve the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/02
Inventor 白联军
Owner 苏州工业园区广福汽保机电设备有限公司
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