What is the essence of signal transmission in the chemical industry?

2019-01-19View Original

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How exactly is a signal transmitted over a signal line? Is it essentially changes in current or voltage?

Reply #22019-01-20

Whether using electricity, light, radio, or dry contacts, it is all for measurement, regulation, and control.

Reply #32019-01-20

This post was last edited by feng*aosa on 2019-3-28 at 15:30. A signal is a physical quantity that represents information; for example, electrical signals can convey different information through changes in amplitude, frequency, and phase.

Reply #42019-03-25

Ultimately, it’s about judging the signal based on changes in voltage and current

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What is the essence of signal transmission in the chemical industry?

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