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MEMS Inertial Sensors
MEMS Inertial Sensors
Documents Why use frequency-domain analysis and spectral alarms?
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MEMS Inertial Sensors requires membership for participation - click to join
  • +Documents
  • +AD22282-A-R2: FAQ
  • +ADIS16000: FAQ
  • +ADIS16003 MTBF: FAQ
  • +ADIS16006: FAQ
  • +ADIS16201: FAQ
  • +ADIS16203: FAQ
  • +ADIS16204: FAQ
  • +ADIS16209: FAQ
  • +ADIS16210: FAQ
  • +ADIS16223: FAQ
  • +ADIS16227: FAQ
  • -ADIS16228: FAQ
    • FAQ: ADIS16228 Autonull in Vibration Evaluation Program
    • Any tips for performance optimization?
    • critical performance parameters
    • Do we offer a wireless interface for this device?
    • Shouldn't we have more expertise?
    • type of applications use the ADIS16228?
    • What evaluation tools are available?
    • What is special about the ADIS16228?
    • Why use frequency-domain analysis and spectral alarms?
    • ADIS16228 Datasheet Error: Figure 27
    • ADIS16228 Demonstration Project
    • FAQ: ADIS16228 Demonstration, Compressor Case
    • FAQ: ADIS16228 Evaluation Tool Overview
    • FAQ: ADIS16228 Evaluation Tutorial, Alarm Demonstration
    • FAQ: ADIS16228 Evaluation Tutorial, Automatic FFT
    • FAQ: ADIS16228 Evaluation Tutorial, Automatic Bias Correction
    • FAQ: ADIS16228 Evaluation Tutorial, Automatic FFT/Multi-Record
    • FAQ: ADIS16228 Evaluation Tutorial, FFT Header/Data Capture Demo
    • FAQ: ADIS16228 Evaluation Tutorial, Manual FFT
    • FAQ: ADIS16228 Evaluation Tutorial, Manual FFT/Multi-Record
    • FAQ: ADIS16228 Evaluation Tutorial, Register Access
    • FAQ: ADIS16228 Evaluation Tutorial, Sample Rate Control
    • FAQ: ADIS16228 FFT Header Example
    • FAQ: ADIS16228 Real-time support through Vibration Evaluation Program
    • FAQ: ADIS16228 Register Access in Evaluation Software
    • FAQ: ADIS16228/PCB-ADISUSB Tutorial
    • FAQ: ADIS16228/PCBZ Breakout Board Cables
    • How do we communicate with the ADIS16228?
    • How does it compare to piezoelectric sensors (classic approach)?
    • How does it work?
  • +ADIS16229: FAQ
  • +ADIS16240: FAQ
  • +ADIS16255: FAQ
  • +ADIS16355: FAQ
  • +ADIS16364: FAQ
  • +ADIS16365: FAQ
  • +ADIS16375: FAQ
  • +ADIS16385: FAQ
  • +ADIS16400: FAQ
  • +ADIS16405: FAQ
  • +ADIS16407: FAQ
  • +ADIS16445: FAQ
  • +ADIS16448: FAQ
  • +ADIS16460: FAQ
  • +ADIS16475: FAQ
  • +ADIS16477: FAQ
  • +ADIS1647x: FAQ
  • +ADIS16480: FAQ
  • +ADISUSB: FAQ
  • +ADXL001: FAQ
  • +ADXL203: FAQ
  • FAQ: ADIS1648x Center of Gravity
  • FAQ: ADIS1648x Mounting Tips
  • FAQ: ADIS1648x SPI Extender
  • FAQ: ADIS16495 Pin Compatibility with the ADIS16485
  • FAQ: ADIS16IMU4/PCBZ Issue/Update
  • FAQ: ADXL001 Frequency Response
  • FAQ: Connecting the ADIS16000 to an EVAL-ADIS
  • FAQ: Continuous data sampling on ADIS16223?
  • FAQ: Definition of "g"
  • FAQ: Delta Angle Tutorial, ADIS16480
  • FAQ: Embedded design with the ADIS16460
  • FAQ: EVAL-ADIS Data Streaming into Matlab
  • FAQ: EVAL-ADIS DUT Mounting Holes
  • FAQ: EVAL-ADIS External Supply
  • FAQ: EVAL-ADIS in MATLAB
  • FAQ: EVAL-ADIS or ADISUSB?
  • FAQ: EVAL-ADIS Software Development Support
  • FAQ: EVAL-ADIS SPI Extender
  • FAQ: EVAL-ADIS/IMU Evaluation Product Support
  • FAQ: External Clock for ADIS16485 on EVAL-ADIS
  • FAQ: Extracting an IMU with a Flex Connector
  • FAQ: Getting Started with IMU FIR Filter Design
  • FAQ: Gyroscope Angle Random Walk
  • FAQ: Gyroscope In-Run Bias Stability
  • FAQ: Gyroscope Noise Density
  • FAQ: Gyroscope Sensitivity/Scale Factor Evaluation
  • FAQ: Hard & Soft Iron Correction for Magnetometer Measurements
  • FAQ: Hard & Soft Iron Correction for Magnetometers II
  • FAQ: Importing IMU Evaluation Software Data into Matlab
  • FAQ: IMU Datasheets, What is in them? Where do I find it?
  • FAQ: IMU Design Tools & Tips
  • FAQ: IMU Evaluation Tools & Information (old)
  • FAQ: IMU Evaluation, Writing Register Values to a File
  • FAQ: IMU Legacy Breakout Boards
  • FAQ: IMU Mounting Screws/Magnetic Properties
  • FAQ: Installing an IMU with a Flex Connector
  • FAQ: Interface ADIS16364 with Arduino
  • FAQ: J1 Pins on the EVAL-ADIS
  • FAQ: J3 Pins on the EVAL-ADIS
  • FAQ: MEMS Evaluation Tools
  • FAQ: Sensor filtering functions - Kalman or FIR
  • FAQ: Simple Gyroscope Calibration
  • FAQ: Slip Ring Interface
  • FAQ: Synchronizing Data Capture with ADIS16485 Power-on
  • FAQ: Testing Delta Angle Function in the ADIS16488
  • FAQ: Tilt Angle Window Detector
  • FAQ: Tilt Angle Window Detector with Evaluation Tools
  • FAQ: Vibration Analysis with the ADIS16228
  • FAQ: What is the ADIS16IMU1/PCBZ?
  • FAQ: What's new with the ADIS16460?
  • FAQ: Where can I find information on evaluation tools for ADIS16xxx products? (OLD)
  • FAQ; ADIS16475 Underfill Process Example
  • FAQ; ADIS1648x PROD_ID Read Loop Example
  • FAQ; ADIS1648x Remote Communication/Testing
  • FAQ; ADIS1648x Remote Communication/Testing Setup Guide
  • FAQ; EVAL-ADIS Software Development Tools, LabVIEW
  • FAQ; EVAL-ADIS Software Development Tools, Matlab
  • FAQ; EVAL-ADIS Software Development Tools, VB.NET DLL
  • FAQ; EVAL-ADIS2 Software Development Tools, VB.NET DLL (64-bit)
  • FAQ; Incline Output Response and Format
  • +Test Procedures: FAQ
  • +ADIS16300: FAQ
  • +ADIS16485: FAQ
  • +ADIS16488: FAQ
  • +ADIS16488A: FAQ
  • +ADIS16490: FAQ
  • +ADIS16495: FAQ
  • +ADIS16497: FAQ
  • +ADXL103: FAQ
  • +ADXL150: FAQ
  • +ADxL193: FAQ
  • +ADXL202: FAQ
  • +ADXL206: FAQ
  • +ADXL210: FAQ
  • +ADXL210E: FAQ
  • +ADXL213: FAQ
  • +ADxL230: FAQ
  • +ADXL278: FAQ
  • +ADXL312: FAQ
  • +ADXL313: FAQ
  • +ADXL320: FAQ
  • +ADXL321: FAQ
  • +ADXL322: FAQ
  • +ADXL327: FAQ
  • +ADXL335: FAQ
  • +ADXL337: FAQ
  • +ADXL345: FAQ
  • +3-D Model/STEP: FAQ
  • +AD22290: FAQ
  • +ADIS16003: FAQ
  • +ADIS16133: FAQ
  • +ADIS16135: FAQ
  • +ADIS16265: FAQ
  • +ADIS16305: FAQ
  • +ADXL326: FAQ
  • +ADXL350: FAQ
  • +ADXL362: FAQ
  • +ADXL375: FAQ
  • +ADXL377: FAQ
  • +ADXL78: FAQ
  • +ADXRS150: FAQ
  • +ADXRS290: FAQ
  • +ADXRS300: FAQ
  • +ADXRS401: FAQ
  • +ADXRS453: FAQ
  • +ADXRS610: FAQ
  • +ADxRS614: FAQ
  • +ADXRS623: FAQ
  • +ADXRS646: FAQ
  • +ADXRS652: FAQ
  • +ADXRS800: FAQ
  • +EVAL-ADIS2: FAQ
  • +EVAL-ADIS: FAQ
  • +General: FAQ
  • +Gyroscope: FAQ
  • +SPI Troubleshooting: FAQ
  • +TEMP_OUT Variation: FAQ
  • +ADIS16136: FAQ
  • +ADIS16137: FAQ
  • +ADIS16266: FAQ
  • +ADIS16334: FAQ
  • +ADIS16362 Evaluation Tool: FAQ
  • +ADIS16364 Evaluation Tool: FAQ
  • +ADIS16367: FAQ
  • +ADIS16489: FAQ
  • +ADXL346: FAQ
  • +ADXL363: FAQ
  • +ISEB USB: FAQ
  • +MEMS: FAQ

Why use frequency-domain analysis and spectral alarms?

Q 

Why use frequency-domain analysis and spectral alarms?

 

A 

Vibration is periodic, by nature, so understanding the behaviors in terms of
magnitude and frequency has strategic value in establishing appropriate
monitoring criteria, such as spectral alarms.  The typical customer will start
out taking data on their machines and will use that data and establish normal,
warning and critical alarm criteria.  As the engineer develops experience, they
will likely adjust these criteria, for more efficient operation. One key value,
which will be evident later in the process, is associated with the historical
records inside of the ADIS16228. The device will store up to 14 records, so
customers can store machine-specific information, at the point of use. Here is
example of a FFT plot, with spectral alarms.  Here is the plot.

Note that “warning” alarms might trigger a quality check of product quality,
measurement of other observable factors (noise, temperature, etc.) and may
eventually result in a scheduled maintenance. If that maintenance does not
reveal any real issues, the “warning” alarm level may be raised. On the other
hand, if production yields start to drop, due to a worn-out tool or handling
mechanism, the ADIS16228 could be used to study the vibration signature more
carefully, so that the spectral alarm levels can be updated, to better
observe.  Our goal is to get the ADIS16228 in place as the tool that helps the
engineer develop this expertise.

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