Accelerometer Семейство Dual Axis Accelerometer
The ADXL 202 is a dual axis accelerometer that measures ±2 g. The outputs are digital and can be direct connected to a counter in a microprocessor. The output is a pulse-width modulated signal whose duty cycle is directly proportional to the acceleration. The signal's duty cycle is adjustable from 1 ms to 10 ms via a resistor(RSET). Furthermore an analogue output signal is available from the pins XFILT and YFILT. These outputs require in general to be followed up with a buffer stage, for example an op-amp connected as voltage-follower. Offset and sensitivity are dependent on the power supply and are calculated as following: 0 g Offset = VDD/2, Sensitivity = 60 mV×VDD/g. Suitable applications could be for example shock and vibration sensors in crash and alarm systems, earthquake detectors or as a tilt sensor in for example games and game consoles.
Measuring range: 5 mg to 2 g
Noise: 500 μg/√Hz typ
Sensitivity, duty cycle/g: 12.5 %/g typ. Технические параметры
- Выход: Digital
- Корпус: LCC-8
- Питание: 3.0...5.25 V
- Интерфейс: последовательный
- Тип датчика: Датчики ускорения
- Ток питания: 600 µA
- Сигнальный выход: digital
- Чувствительность: 312 mV/g
- Измерительная ось: X, Y
- Диапазон измерения: ± 2 g
- Рабочая температура: -40...+85 °C
- Напряжение питания, мин.: 3.0 В
- Напряжение питания, макс.: 5.25 В
- Рабочая температура, мин.: -40 °C
- Рабочая температура, макс.: +85 °C