voltmeter switch

基本解釋

The three-pole switch was originally used to switch a voltmeter guard along with the signal lines.
三刀開關(guān)最早用于切換伏特計保護及信號線路。
And the excitation voltage and output were also fed through the selector switch to the digital voltmeter.
其激勵電壓和輸出也通過選擇開關(guān)接到數(shù)字電壓表上。
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The output trigger may be connected to a measuring device, such as a voltmeter. This will ensure the measurement is not made until the switch contacts have fully settled.
輸出觸發(fā)可被連接到一個測量裝置，例如伏特計。這樣能夠確保在開關(guān)觸點完全穩(wěn)定之后再進(jìn)行測量。