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ADI Introduces High-Bandwidth Mems-Based Vibration Sensor

May 5, 2008

The ADXL001 provides reliable, continuous system-performance monitoring without interrupting normal operation of the equipment and meets the cost criteria of industrial applications.


NORWOOD, MA -- Analog Devices Inc. (ADI) introduced a high-bandwidth MEMS vibration sensor to enable better monitoring of equipment performance and reduce costly downtime due to unforeseen system failures on the factory floor. Based on Analog Devices' iMEMS Motion Signal Processing technology, the new ADXL001 industrial vibration and shock sensor allows designers of industrial process-control instruments to cost-effectively incorporate high-performance, dependable high-bandwidth vibration monitoring into their applications via an easy-to-use sensor solution.

Vibration analysis is emerging as an important preventative maintenance tool in today's factory environment. For many industrial operations, however, vibration analysis remains cost-prohibitive or is conducted only periodically. Now, the new ADXL001 allows vibration monitoring to be performed continuously without interrupting normal operation of the equipment. Analog Devices applied the same expertise it uses to address the high-reliability and harsh environmental conditions of automotive design to develop a single-chip, precision vibration sensor able to withstand the rigors of industrial applications—at "one-third the cost of competing sensors." Many other vibration sensors operate below 5 kHz of bandwidth, a frequency range that would be emitted only after extensive equipment failure. The ADXL001, however, is capable of early detection of motor-bearing vibration and irregularities up to 22 kHz, allowing system operators to identify failing equipment long before costly damage is sustained. The new iMEMS vibration sensor is available in a 5 mm by 5 mm ceramic package that is small enough to be easily designed into the motor control circuitry or mounted on existing factory equipment at the point of measurement interest.

"A catastrophic equipment failure can cost hundreds of thousands of dollars in lost productivity and is the worst-case scenario for any manufacturing operation," said Rich Mannherz, Product Line Director, Micromachined Products Division, Analog Devices. "While various vibration sensing technologies have been used for years to mitigate the risk of system failure, none have the combination of size, performance, cost, and reliability to make real-time, around-the-clock equipment health monitoring broadly available in industrial applications. That's the gap we're filling with the ADXL001 product."

More About ADXL001
Available in three full-scale dynamic ranges of ±70 g, ±250 g, and ±500 g, the new vibration and shock sensors have the sensitivity to work in a wide range of applications. All three g ranges have wide bandwidth (22 kHz resonant frequency) and provide frequency response down to DC. Additionally, the sensors have excellent nonlinearity of 0.2% of full-scale range. The ADXL001 is highly resistant to electromagnetic interference and radio frequency interference and operates with an extended temperature range of –40°C to 125°C, allowing the part to be used in most hazardous industrial conditions. The ADXL001 functions on a 3.3 V to 5 V supply.

The ADXL001 requires no calibration and is ideally suited to work with Analog Devices' precision data converters. The ADXL001 also works with ADI's SigmaDSP processor and intuitive SigmaStudio graphical user interface to provide equipment designers with an easy-to-use programming environment. As the output of the ADXL001 passes through the SigmaDSP processor, the system designer can use the SigmaStudio software to perform various processing techniques, including filtering and amplification.

Product Availability
The ADXL001 will be available in sample quantities in May, with volume production scheduled for August. The ADXL001 is priced at $35 in 1000-unit quantities and comes in an 8-pin leadless-chip-carrier ceramic package.

About ADI
Innovation, performance, and excellence are the cultural pillars on which Analog Devices has built one of the longest standing, highest growth companies within the technology sector. Acknowledged industrywide as a world leader in data conversion and signal conditioning technology, Analog Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Celebrating over 40 years as a leading global manufacturer of high-performance integrated circuits used in analog and digital signal-processing applications, Analog Devices is headquartered in Norwood, MA, with design and manufacturing facilities throughout the world.

iMEMS is a registered trademark, and Motion Signal Processing, SigmaDSP, and SigmaStudio are trademarks of Analog Devices Inc.


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