Oct 12 2010
SensorDynamics, a pioneer designer and provider of wire-free and micro semiconductor devices, releases a novel cable-less inertial calibration system encompassing a portable sensing unit and a receiving system.
The monitoring system features an ISM band transceiver chip and an additional LF communication chip for capturing the signals which falls in the range of 21kHz frequencies. The LF circuits facilitate the positioning of the module seven meters apart with ten cm precision by utilizing the optional transmitter coils.
The unique system has a rotary rate with ±300°/s measurement and an acceleration range of ±2g on three axes orientation. The motion detection can be achieved even in an external measurement range in the order of 512°/s and ±6.78g. The movable system can resist shock in the range of a maximum of 2000g and constant auto-inspection potentiality of the sensing unit assures reliability to the system. The two-dimensional compass incorporated in the mobile unit detects the appropriate direction.
For synchronous communication of the data, the system employs a standard 433MHz FMSK band modulation. The intensive data communication 125Kbps transmits the entire six 100 Hz data. The SD340 RF transceiver supports a 32Kbyte flash memory for performing the conditioning of measured values, encoding algorithms or for the automatic switchover of the channels. The scaled mobile system with 30x85x8 mm³ size functions eight hours using a 1000mAh battery and the working temperature is in the order of -40°C to +85°C.
The calibrated values are transmitted through the receiver by means of UART connection using numerous antennas with a communication range of 150 m A.
The inertial calibration unit can be deployed in industrial, automotive and medical purposes.
Source: http://www.sensordynamics.cc