Artificial mouth РИ-8\4
Produced according to specifications
УМЯИ.301314.003 ТУ

Designed to determine the acoustic parameters of converters, user equipment as process measuring means.

Operating frequency range, Hz 150 - 10000
Nominal resistance to direct current, Ohm 4 или 8
The amplitude characteristic of sound pressure developed by RI-8/4 on its axis at a distance of 25 mm from the limiter at a pressure of 0.1 to 3 Pa is linear with a deviation, dB ± 1
Frequency response unevenness in sound pressure, no more, dB в диапазоне от 200 Гц до 6000 Гц ....16 .....в диапазоне от 150 Гц до 10000 Гц .........22
Weight, no more 3 кг
Operating temperature range, degrees 25 ± 10
Relative humidity at a temperature not exceeding 25 degrees,% 40 - 80