RU93034582A - METHOD OF CONTROL OF SOUND CONDUCTING PRODUCTS ON THE QUALITY OF SOUND TRANSMISSION AND DEVICE FOR ITS IMPLEMENTATION - Google Patents

METHOD OF CONTROL OF SOUND CONDUCTING PRODUCTS ON THE QUALITY OF SOUND TRANSMISSION AND DEVICE FOR ITS IMPLEMENTATION

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Publication number
RU93034582A
RU93034582A RU93034582/28A RU93034582A RU93034582A RU 93034582 A RU93034582 A RU 93034582A RU 93034582/28 A RU93034582/28 A RU 93034582/28A RU 93034582 A RU93034582 A RU 93034582A RU 93034582 A RU93034582 A RU 93034582A
Authority
RU
Russia
Prior art keywords
sound
frequency
quality
pass filter
frequencies
Prior art date
Application number
RU93034582/28A
Other languages
Russian (ru)
Other versions
RU2078462C1 (en
Inventor
И.В. Коновалов
Original Assignee
И.В. Коновалов
Filing date
Publication date
Application filed by И.В. Коновалов filed Critical И.В. Коновалов
Priority to RU93034582/28A priority Critical patent/RU2078462C1/en
Priority claimed from RU93034582/28A external-priority patent/RU2078462C1/en
Publication of RU93034582A publication Critical patent/RU93034582A/en
Application granted granted Critical
Publication of RU2078462C1 publication Critical patent/RU2078462C1/en

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Claims (1)

Способ и устройство контроля звукопроводящих изделий на качество звукопередачи могут быть использованы в поточном производстве мембранных элементов переговорных устройств. С целью повышения достоверности и увеличения производительности контроля при поточном производстве в комбинационном электрическом сигнале подавляют высокочастотные составляющие, а уровень звукового давления акустического испытательного сигнала поддерживают постоянным и равным максимально допустимому для данного вида испытываемых звукопроводящих изделий, при этом подавление высокочастотных составляющих в комбинационном электрическом сигнале производят для частот, больших суммы частот двух испытательных синусоидальных сигналов, но меньше частоты, начиная с которой производят выделение высокочастотных составляющих для оценки качества звукопередачи. Устройство для осуществления способа содержит низкочастотный фильтр с частотой среза выше суммы частот синусоидальных напряжений испытательных сигналов, но ниже частоты среза фильтра верхних частот, при этом параллельно с фильтром высоких частот подключают измеритель звуковых давлений.The method and device for controlling sound-conducting products for sound transmission quality can be used in the in-line production of membrane elements of intercoms. In order to increase the reliability and increase the performance of control during mass production, the high-frequency components are suppressed in the combinational electrical signal, and the sound pressure level of the acoustic test signal is kept constant and equal to the maximum allowed for this type of sound-conducting products, while suppressing the high-frequency components in the combinational electrical signal frequencies, the large sum of the frequencies of the two test sinusoidal signals c, but less than the frequency from which high-frequency components are extracted to assess the quality of sound transmission. An apparatus for carrying out the method comprises a low-pass filter with a cut-off frequency above the sum of the frequencies of sinusoidal voltages of the test signals, but lower than the cut-off frequency of the high-pass filter, while a sound pressure meter is connected in parallel with the high-pass filter.
RU93034582/28A 1993-07-01 1993-07-01 METHOD FOR MONITORING SOUND-CONDUCTING PRODUCTS ON THE QUALITY OF SOUND TRANSFER AND DEVICE FOR ITS IMPLEMENTATION RU2078462C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93034582/28A RU2078462C1 (en) 1993-07-01 1993-07-01 METHOD FOR MONITORING SOUND-CONDUCTING PRODUCTS ON THE QUALITY OF SOUND TRANSFER AND DEVICE FOR ITS IMPLEMENTATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93034582/28A RU2078462C1 (en) 1993-07-01 1993-07-01 METHOD FOR MONITORING SOUND-CONDUCTING PRODUCTS ON THE QUALITY OF SOUND TRANSFER AND DEVICE FOR ITS IMPLEMENTATION

Publications (2)

Publication Number Publication Date
RU93034582A true RU93034582A (en) 1996-01-20
RU2078462C1 RU2078462C1 (en) 1997-04-27

Family

ID=48434844

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93034582/28A RU2078462C1 (en) 1993-07-01 1993-07-01 METHOD FOR MONITORING SOUND-CONDUCTING PRODUCTS ON THE QUALITY OF SOUND TRANSFER AND DEVICE FOR ITS IMPLEMENTATION

Country Status (1)

Country Link
RU (1) RU2078462C1 (en)

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