Copyright: 1996 - 2024
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
Analog Devices Press Release - September 26, 2011
Analog Devices' Compact Multi-Axis MEMS Vibration Monitor Provides Exceptional Low-Noise Performance and
Mass.--( BUSINESS WIRE)--
Analog Devices, Inc. (ADI) is continuing to help industrial
equipment designers improve system performance and reduce maintenance costs through more efficient vibration
detection and isolation with the introduction today of the MEMS-based
ADIS16228 iSensor® vibration monitor. The fully
integrated vibration analysis system features an embedded programmable processor that provides directional sensing
and spectral analysis to identify and classify individual sources of vibration. This enables the earliest possible
detection, identification, and isolation of vibration sources from equipment and bearing wear that otherwise can
lead to operating errors and costly equipment downtime. The noise performance of the ADIS16228 vibration monitor
is specified at only 248 µg/ √Hz, across a dynamic range of ±18g, configurable to settings of 0 g to 1 g/5 g/10
g/20 g. By embedding these small vibration monitors, applications ranging from wind turbines to precision factory
automation and assembly equipment will benefit from automatic vibration profiling.
“MEMS accelerometers are well suited for vibration monitoring, but are typically at a low level of integration.
With decades of integrated sensor processing experience, Analog Devices transformed a MEMS accelerometer into a
3-axis vibration analyzer with programmable embedded processing,” said Bob Scannell, iSensor business development
manager, MEMS/Sensors Group, Analog Devices. “For the first time, industrial equipment designers have a low noise,
easy-to-use, affordable and complete vibration analyzer that is compact and directly embeddable.”
The ADIS16228 iSensor vibration monitor eliminates the complexity and risk of developing a vibration
solution from discrete components and enables a much wider application base, by integrating the intelligence and
analysis only found in bulky handheld monitors which required trained vibration analysts. With the ADIS16228,
developers have access to proven vibration sensing capability with frequency domain processing programmability and
tuning that greatly improves the ability to isolate the vibration source quickly. The ADIS16228 is available in a
15 mm × 24 mm × 15 mm aluminum module with flanges, M2 machine screw holes, and a flexible connector that enables
simple user interface and installation.
More About the ADIS16228 iSensor Digital Vibration Monitor
The ADIS16228 iSensor tri-axial, digital vibration monitor combines industry-leading
iMEMS® sensor technology with ADI's data conversion and sensor signal processing technologies with convenient
data capture and an SPI (serial peripheral interface). The SPI and data buffer structure provide easy access to
sensor data. The ADIS16228 samples, processes and stores x, y and z acceleration data with FFT (fast Fourier
transform) processing including time stamp. The programmable digital filter offers low-pass configuration options,
and an internal clock drives the data sampling system during a data capture event, which eliminates the need for
an external clock source. The data capture function has three different modes that will accommodate the needs of
many different applications. The ADIS16228 also offers an integrated digital temperature sensor and digital
power-supply measurements, as well as a digital self-test feature that enables reliable embedded operation within
the targeted applications. The extended operating temperature range for the device is −40°C to +125°C. For more
download the data sheet.
ADIS16228 Key High-Performance Features and Benefits:
Pricing and Availability
- Embedded frequency domain processing, 512-point, real-value FFT algorithms and on-board storage identify and
classify individual sources of vibration, monitor changes over time and react to programmable threshold levels.
- Low-noise performance specified at 248 µg/ √Hz greatly improves the ability to discern unwanted vibration
from normal operation.
- Programmable spectral alarm bands allow analysis of the full frequency spectrum with the configuration of 6
bands, Alarm1 (warning threshold) and Alarm2 (fault threshold) for earlier and more accurate fault detection.
- On-chip data capture function has three modes that offer several options to meet the needs of many different
- User configurable multi-mode operation (including real-time-capture mode) allows more accurate assessment of
even subtle vibration profile changes.
About Analog Devices
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 industry-wide as the world leader in data conversion and signal conditioning technology, Analog
Devices serves over 60,000 customers, representing virtually all types of electronic equipment. Analog Devices is
headquartered in Norwood, Massachusetts, with design and manufacturing facilities throughout the world. Analog
Devices' common stock is listed on the New York Stock Exchange under the ticker “ADI” and is included in the S&P
iSensor and iMEMS are registered trademarks of Analog Devices, Inc.
Follow ADI on
To subscribe to Analog Dialogue, ADI's monthly technical journal, visit:
Analog Devices, Inc.
Colleen Cronin, 781-937-1622
Date Posted 9/27/2011