Vibration Analog Sensor Products
Created:
14Dec2023 21:21:50 UTC
2023-12-14T21:21:50Z
Updated:
08May2024 09:37:44 UTC
2024-05-08T09:37:44Z
Description
Vibration analog sensors respond to repetitive mechanical motion and output an analog voltage signal in order to measure the amount of vibration. The most common type of sensors that convert vibration to voltage are piezoelectric. The piezo element can convert vibration to voltage or voltage to vibration, which means that it can be used as either a vibration sensor or a buzzer speaker to play tones. Piezo elements are polarized, which means that voltage passes through them (or out of them) in a specific direction. They typically have a red wire for the higher voltage and a black wire for the lower voltage.
Piezo elements for vibration sensing applications have the potential to produce very large AC voltage spikes, ranging up to ±50V. A large 1MΩ (or higher) resistor connected in parallel to the piezo sensor can be used to load down the circuit. Microcontroller boards usually have some limited internal protection for negative voltages if the current is kept low. For example, the ATmega328 microcontroller used in the Arduino Uno R3 board has internal pin protection diodes that will clamp any over/under voltage to VCC+0.5V and GND-0.5V. However, exceeding these internal protections limits can potentially damage the microcontroller. Alternatively, Zener diodes and/or Schottky clamping diodes can be used to clamp voltages down to safe levels or OpAmps can be used to buffer the signal.
Piezo Elements
Adafruit Piezo Elements
- 1x Piezo Element
- 1x Piezo Element
- 1x Piezo Element
- 1x Piezo Element
SparkFun Piezo Elements
- 1x Piezo Sensor
- 1x Piezo Sensor
- 1x Piezo Sensor
Generic Piezo Elements
- 10x Piezo Element
Piezoelectric Modules
Analog Modules
- 4x Vibration Sensor Modules
- 5x Vibration Sensor Modules
- 5x Vibration Sensor Modules
Digital/Analog Modules
- 1x Vibration Sensor Module
- 1x Vibration Sensor Module
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