便携式脉冲发动机转速分析仪校准装置研制

Development of Calibration Device for Portable Pulse Engine Speed Analyzer

为满足脉冲发动机转速分析仪的校准需求,本文研制了一种便携式脉冲发动机转速分析仪的校准装置。通过上位机产生频率输出数据,采用信号采集处理模块产生相应的PWM信号,并输送至波形发生模块进行相应处理,经隔离后,产生与汽车电源系统相吻合的输出信号。实验证明:该装置满足JJF 1375-2012《机动车发动机转速测量仪校准规范》中对测量标准的要求。

In order to meet the calibration requirements of pulse engine speed analyzer,a portable calibration de-vice for pulse engine speed analyzer is developed in this paper.The frequency output data is generated by the upper computer,and the corresponding PWM signal is generated by the signal acquisition and processing module,and then transmitted to the waveform generating module for corresponding processing.After isolation,the output signal is generated consistent with the automobile power system.Experimental results show that the device meets the require-ments of measurement standards in JJF 1375-2012"Calibration Specification for Motor Vehicle Engine Tachome-ter".