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| ==Definitions== | | ==Definitions== |
| 1. something that transmits something (in all [[senses]]) | | 1. something that transmits something (in all [[senses]]) |
− | 2. an electronic device that generates and amplifies a carrier [[wave]], modulates it with a [[meaningful]] signal derived from [[speech]], [[music]], TV or other sources, and broadcasts the resulting signal from an antenna [http://en.wiktionary.org/wiki/transmitter] | + | 2. an electronic device that generates and amplifies a carrier [[wave]], modulates it with a [[meaningful]] signal derived from [[speech]], [[music]], TV or other sources, and broadcasts the resulting signal from an antenna [https://en.wiktionary.org/wiki/transmitter] |
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| <center>For lessons on the related [[topic]] of '''''[[Transmitting]]''''' (or TR'ing), follow [https://nordan.daynal.org/wiki/index.php?title=Category:Transmitting '''''this link'''''].</center> | | <center>For lessons on the related [[topic]] of '''''[[Transmitting]]''''' (or TR'ing), follow [https://nordan.daynal.org/wiki/index.php?title=Category:Transmitting '''''this link'''''].</center> |
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| ''More generally and in [[communications]] and [[information]] [[process]]ing, a "transmitter" is any object (source) which sends information to an observer (receiver). When used in this more general sense, [[voice|vocal]] cords may also be considered an example of a "transmitter".'' | | ''More generally and in [[communications]] and [[information]] [[process]]ing, a "transmitter" is any object (source) which sends information to an observer (receiver). When used in this more general sense, [[voice|vocal]] cords may also be considered an example of a "transmitter".'' |
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− | In industrial process control a "transmitter" is any device which converts measurements from a sensor into a signal to be received, usually sent via wires, by some display or control device located a distance away. Typically in process control applications the "transmitter" will output a 4-20 mA current loop or digital [[protocol]] to represent a measured variable within a range. For example, a pressure transmitter might use 4 ma as a representation for 50 psig of pressure and 20 ma as 1000 psig of pressure and any value in between proportionately ranged between 50 and 1000 psig. Older [[technology]] transmitters used pneumatic pressure typically ranged between 3 to 15 psig (20 to 100 kPa) to represent a process variable. [http://en.wikipedia.org/wiki/Transmitter] | + | In industrial process control a "transmitter" is any device which converts measurements from a sensor into a signal to be received, usually sent via wires, by some display or control device located a distance away. Typically in process control applications the "transmitter" will output a 4-20 mA current loop or digital [[protocol]] to represent a measured variable within a range. For example, a pressure transmitter might use 4 ma as a representation for 50 psig of pressure and 20 ma as 1000 psig of pressure and any value in between proportionately ranged between 50 and 1000 psig. Older [[technology]] transmitters used pneumatic pressure typically ranged between 3 to 15 psig (20 to 100 kPa) to represent a process variable. [https://en.wikipedia.org/wiki/Transmitter] |
| ==Note== | | ==Note== |
| In the [[context]] of [[The Teaching Mission]], it is understood that '''transmitters''' (or [[TR]]'s) are those [[human]] personalities offering the use of their [[mind]] and [[voice]] to give expression to celestial [[teachers]] who remain unseen. For a list of these TR's, follow [https://nordan.daynal.org/wiki/index.php?title=Category:TR '''''this link''''']. | | In the [[context]] of [[The Teaching Mission]], it is understood that '''transmitters''' (or [[TR]]'s) are those [[human]] personalities offering the use of their [[mind]] and [[voice]] to give expression to celestial [[teachers]] who remain unseen. For a list of these TR's, follow [https://nordan.daynal.org/wiki/index.php?title=Category:TR '''''this link''''']. |
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| [[Category: General Reference]] | | [[Category: General Reference]] |