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在拖拉机和发动机试验中,经常会碰到求取测试结果平均值的问题。例如,在拖拉机牵引试验要绘制牵引特性时,需要获得拖拉机挂钩牵引力的平均值;在研究传动系统工作时的载荷时,也需要知道轴或齿轮所受载荷的冲击值和平均值。本文介绍我所曾采用的一种简单的电子积分方法,可以在试验中很快求得平均值,并实现数字显示。 在非电量电测法中,各种非电量通过传感器以及适当的电路,变换成为电压、电流或电脉冲,其数值与被测非电量成正比关系。对于电压或电流的记录,通常采用迴线示波器或笔
In tractor and engine tests, often encounter the problem of finding the average of the test results. For example, when tractor traction tests are to draw traction characteristics, it is necessary to obtain the average value of tractor hook traction. When studying the load of a transmission system, it is also necessary to know the impact value and the average value of the load on the shaft or gear. This article describes a simple method of electronic integration that I have used to get the average quickly and experimentally for digital display. In the non-electric power measurement method, a variety of non-electricity through the sensor and the appropriate circuit, transformed into voltage, current or electric pulse, the value is proportional to the measured non-electricity. For voltage or current recording, usually using a loop oscilloscope or pen