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amperemeter 電流表,安培表。

ampersand

When measuring the magneto performance parameter , we find that the instrument which use to measure voltage and current is still the simple voltmeter and amperemeter in the national standard , and the form of wave that we observed is anomaly . based on the measure principles , it obviously ca n ' t be used to do quantitative analysis ; because the discharge process of ignition system is quite complex , accompanies with very strong electromagnetism interference , and the ignition current and voltage are variable , it make the measure of ignition energy become a difficult thing of ignition system performance detection 在磁電機常規測量時,發現在國家標準中用于測量電壓、電流的儀器仍然是普通的電壓、電流表,而觀測到的波形多為不規則的形狀,根據測量原理,顯然不能用其來做定量的分析;由于點火系統的放電過程比較復雜,伴隨著很強的電磁干擾,點火電流、點火電壓都是變量,使得點火能量的測量成為點火系統性能測試的一個難點。

Verification regulation of dc digital amperemeter 直流數字電流表試行檢定規程