Microphone
Now (Nov 18) available: industrial microphone for heavy-duty industrial applications.
The microphone comes with no pre-amplifier and needs biasing 2-10V DC from 2,2kΩ source. Pre-amplifiers can be customized (A- or C- characteristic)
| Part | Description | Unit | Value |
|---|---|---|---|
| housing | material | brass chrome-plated |
|
| Length | [mm] | 71 | |
| Diameter | [mm] ø | 12,7 | |
| acoustic vent | GAW 334 ®GORE | IP | 67 |
| vent loss | [dB] 1kHz 100 Hz | <1 <2 |
|
| microphone capsule | Diameter | [mm] ø | 6 |
| type | electret condenser | ||
| sensitivity | [dB] f = 1kHz, 1Pa 0dB = 1V / Pa | 54 ± 3 | |
| frequency | [Hz] | 10 - 10000 | |
| SNR | [dBA] f = 1kHz, 1Pa A-weighted | 56 | |
| operating voltage | [V] | 2 - 10V | |
| output impedance | [kΩ] | 2,2 | |
| temperature | [°C] | -20 +70 |
|
Codec
Next, we will develop a SoundSensor solution based on the microphone and an industrial codec.
industrial codec will be cable-bound and heavy duty.
In terms of protocol we are still investigating. I-O LINK is number one, currently.