SensorDynamics, a provider of multidimensional wireless and inertial sensors, has introduced an enhanced version of micromechanical combo sensor, SD746, for measurement of motion in industrial and consumer applications. The 6DoF-IMU SD746 includes a low-power wake-up on motion function.
The combo sensor is available in a compact a QFN package and has the capability to measure acceleration and angular rate along the three axes. The new feature makes the sensor suitable for a number of motion sensing applications, including gaming remote control and air-mouse. In certain applications, the system must switch to sleep mode when motion is not detected, and when motion is detected it must resume its operations efficiently. The low-power motion detection functionality in the SD746 addresses this issue. The sensor turns off its gyroscopes when switching to sleep mode and runs its accelerometers in pulsed mode, while reducing power consumption to accelerometer sample rate of 25 µA at 1 Hz.
The SD746 sensor provides digital measurement values in the range of ±2048°/s and ±8g. It can operate at temperatures ranging from -40°C to +85°C and voltage of 2.55 through 3.6 V.