1) Measuring instrument
Found on
https://www.crosswordclues.com/clue/psophometer
In telecommunications, a psophometer is an instrument that provides a visual indication of the audible effects of disturbing voltages of various frequencies. A psophometer usually incorporates a weighting network. The characteristics of the weighting network depend on the type of circuit under investigation, such as whether the circuit is used for...
Found on
http://en.wikipedia.org/wiki/Psophometer
instrument measuring audible interference of electrical current
Found on
http://phrontistery.info/p.html
apparatus for measuring the psophometric voltage of circuit noises NOTE - The psophometer incorporates a weighting network, the characteristics of which differ according to the circuit under consideration, commercial telephone or sound program transmission circuits. The psophometric weights correspond to the aural effect of disturbing voltages of v...
Found on
http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=722-16-09
No exact match found.
