Purpose of the development: For measuring and recording the amplitude-frequency characteristics of microphones and various electronic units.

Recommended application field: In instrument making.

Advantages over analogues: Determination of frequency characteristics of condenser microphones by pressure by electrostatic method. Measurement of microphone parameters by comparison with a standard in a small volume chamber Measuring the directional patterns of microphones. Frequency response of filters A, B and C in accordance with GOST 17187-81. Frequency response of octave and one-third octave filters according to GOST 17168-82. Spectrum and FFT signals. Two-channel voltmeter VRZ.

The development stage readiness: Introduced in production

Description of the development:
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For measurements of the frequency response of sound level meters, it is necessary to have a PC-compatible computer with installed software and an electronic unit "ACOUSTIC-1.2". In order to determine the frequency characteristics of condenser microphones by pressure using the electrostatic method, an amplifier with a power supply unit UEV-1 with a set of electrostatic exciters is additionally used. The measurements are carried out in the frequency range from 20 Hz to 25 kHz. To measure the parameters of microphones by comparison with the standard, a small chamber of CMO with a set of replaceable cameras is additionally used. The measurements are carried out in the frequency range from 20 Hz to 2 kHz. For measuring the directivity patterns of microphones, a turntable with the Chart module is additionally used.

corresponds technical description
Guarantees stable results getting

Possibility of transfer abroad:
Realization of finished commodity
Joint production, sale, exploitation

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua