Spotlight on New Technology Awards
ABB AS
Booth #2765
Wireless Vibration Sensor
The Wireless Vibration Sensor is an innovative system consisting of cost-efficient, high quality sensor units that communicate their measurements wirelessly to a central unit. The small, autonomous sensor unit is mounted onto a motor. The unit itself comprises a vibration sensor (accelerometer), a temperature sensor, and the means for wireless communication to a central computer. The computer system, in turn, performs the necessary data analysis and storage and makes the data available to potential users.
The shape of the prototype sensor is cylindrical with a small diameter less than 1.5 in. and a height of less than 4 in. It has a threaded hole on the bottom side for mounting on a motor close to a bearing. The shape and size are similar to traditional rugged wired accelerometers used in the industry. The frequency response of the device should ideally be flat up to 10 kHz, making the device ideal for early detection of bearing failures.
The data is communicated over the air using the recently approved WirelessHART standard, securing interoperability with other products and systems. Data sent between the sensors and the central computer is authenticated and encrypted thereby safe-guarding the integrity of the system.
The wireless vibration sensor prototype is deveolped together with SKF and SINTEF under a program sponsored by the Research Council of Norway.