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The sound sensor can be used to receive sound waves and display the vibration image of sound, but it cannot measure the intensity of noise. The sound sensor has a built-in capacitive electret microphone sensitive to sound. The sound wave vibrates the electret film in the microphone, resulting in the change of capacitance, resulting in a small voltage corresponding to the change. This voltage is then converted into a voltage of 0-5V, which is accepted by the collector after a / D conversion, And send it to the computer. The sound sensor can detect the sound intensity of the surrounding environment and identify the size of the sound. The output form is analog output. The voltage signal of the microphone is output in real time. The analog output changes with the sound intensity.
| Parameter type | Characteristics |
|---|---|
| Specification | 22×30mm |
| Positioning aperture | 3mm |
| Control signal | Analog signal |
| Working voltage | 3.3-5V |
| Interface | 3P |
| Line sequence | G V A |
| Sensitivity adjustment | Clockwise sensitivity decreases; Counterclockwise sensitivity increases |
| Analog value output characteristics | Under the same voltage, the analog value output increases with the volume |
| At the same volume, the analog value output decreases as the voltage decreases |
The sound sensor can be used to receive sound waves and display the vibration image of sound, but it cannot measure the intensity of noise. The sound sensor has a built-in capacitive electret microphone sensitive to sound. The sound wave vibrates the electret film in the microphone, resulting in the change of capacitance, resulting in a small voltage corresponding to the change. This voltage is then converted into a voltage of 0-5V, which is accepted by the collector after a / D conversion, And send it to the computer. The sound sensor can detect the sound intensity of the surrounding environment and identify the size of the sound. The output form is analog output. The voltage signal of the microphone is output in real time. The analog output changes with the sound intensity.
| Parameter type | Characteristics |
|---|---|
| Specification | 22×30mm |
| Positioning aperture | 3mm |
| Control signal | Analog signal |
| Working voltage | 3.3-5V |
| Interface | 3P |
| Line sequence | G V A |
| Sensitivity adjustment | Clockwise sensitivity decreases; Counterclockwise sensitivity increases |
| Analog value output characteristics | Under the same voltage, the analog value output increases with the volume |
| At the same volume, the analog value output decreases as the voltage decreases |
