psophometer


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psophometer

[sō′fäm·əd·ər]
(engineering)
An instrument for measuring noise in electric circuits; when connected across a 600-ohm resistance in the circuit under study, the instrument gives a reading that by definition is equal to half of the psophometric electromotive force actually existing in the circuit.
References in periodicals archive ?
Tenders are invited for Digital Psophometer With Following Feature Measure Range: 1 Dbm: 90 Dbm To 0 Dbm, 2 Voltage: 30 U To 1 V, Frequency Range: I Weighted Mode 15 Hz To 6 Khz As Specification By Ccitt, Ii Un Weighted Mode 15Hz To 10 Khz, 3 Minimum Measurable Value: 10 U V -98Dbm , 4 Accuracy: At 800Hz /- 0.