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current loop

   Also found in: Acronyms, Wikipedia 0.01 sec.
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.
current loop [′kər·ənt ‚lüp]
(electricity)
current antinode


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signal pow- ered current loop transmitters for V, A, Hz, and W.
Hot Stuff for the Automation Market by Anonymous / InTech
The key advantages of the current loop are that the accuracy of the signal is not affected by voltage drop in the interconnecting wiring, and that the loop can supply operating power to the device.
Belden cables on view by Gulf Industry
Isolated Circular Loop The self-inductance of an isolated circular current loop in free space can be found using the fundamental relationship for mutual inductance if the two loops are considered to be overlapping.
What is inductance? A closed loop creates inductance, so control your ... by Archambeault, Bruce / Printed Circuit Design & Fab
 
 
 
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