Frequency response testing apparatus

Details Frequency response testing apparatus Frequency response testing apparatus

1977-03-09

1978-06-13

Olms, Douglas W.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 57SS, H04R 2900

Patent

active

040950573

ABSTRACT:
Frequency response testing apparatus, developed for use with hearing aids, comprises a generator providing a predetermined varying-frequency input for the device under test, and a discriminator which applies incremental output level signals from the device to a display matrix of LED's under the control of timing signals derived from the generator, the overall arrangement providing a display in the form of a linear graphical plot.

REFERENCES:
patent: 3093711 (1963-06-01), Comerci et al.
patent: 3267222 (1966-08-01), Chipp et al.
patent: 3692959 (1972-09-01), Lamp
patent: 3922506 (1975-11-01), Frye

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