current loop

[′kər·ənt ‚lüp] (electricity) current antinode

Current loop

In electrical wiring, a situation in which separation of hot and neutral leads results in higher than normal electromagnetic fields.

current loop

A serial transmission method that uses a closed loop. It originated with teletype machines that transmitted 20 mA (milliamperes) of current for a 1 bit and the absence of current for a 0 bit. A 60 mA loop is also used for digital signals. A common analog current loop is 4-20 mA (4 to 20 mA), which is widely used for process automation. Current loops provide a better signal-to-noise ratio (SNR) than voltage-based systems. Contrast with RS-232. See 4-20 mA.

单词	current loop
释义	current loop current loop [′kər·ənt ‚lüp] (electricity) current antinode Current loop In electrical wiring, a situation in which separation of hot and neutral leads results in higher than normal electromagnetic fields. current loop A serial transmission method that uses a closed loop. It originated with teletype machines that transmitted 20 mA (milliamperes) of current for a 1 bit and the absence of current for a 0 bit. A 60 mA loop is also used for digital signals. A common analog current loop is 4-20 mA (4 to 20 mA), which is widely used for process automation. Current loops provide a better signal-to-noise ratio (SNR) than voltage-based systems. Contrast with RS-232. See 4-20 mA. AcronymsSeeCL
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