Vibration (knocking) Sensor
Knocking Sensing ModuleDetailed Description：
WORKING PRINCIPLE：
DQJ series knocking sensing module is also called vibration sensing module, which is released on the sensing surface through the force of the knock action, and then converts the force into a piezoelectric signal. After the piezoelectric signal is converted by the circuit, combined with hardware and software filtering, the useful percussion signal is detected and output through the analog serial port.
TECHNICAL REQUIREMENT：
| Product | DQJ-1 |
| Input Voltage | DC 5±0.3V |
| Operating Current | ≤4mA |
| Induction Thickness | ＜20mm |
| Response Time | ＜1 sec. |
| Output Signal | Analog serial output |
| Operating Temperature | 0~80℃ |
| Storage Temperature | -40~85℃ |
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