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 /- 0.5Db 0 To -60Dbm /- 1 Db -60 To -90Dbm 5 Input Impedence 600 Ohms, Display 31/2 Digit Lcd, Make/Model: Aplab 1072 Or Similar With One Year Warranty.
Tenders are invited for Digital Psophometer:1072 Compact And Portable For Field Application Weighed And Flat Frequency Response As Per Ccitt Standard.Highly Stable Internal Calibration Signal.Measurement Of Metallic,Nose,,Logitudinal Noise,Level And Transmission Loss Operated On Main/Battery Or On External 6V Dc Source.Built In Power Hum Measurement Facility I/P Impedance 600,1120 Ohms Or Hi Selectable 3 1/2 Digital Lcd Display.
Tenders are invited for Digital Psophometer:1072 Comlact And Portable For Field Application Weighted And Flat Frequency Response As Per Ccitt Standard.