R80-Alpha0 pages
R80α Sensor
General Purpose, 800 kHz Resonant
Frequency Acoustic Emission Sensor
Description and Features
Operating Specifications
The Alpha series family of sensors features SMA connectors
versus the Microdot connectors found on PAC’s RXX series of
passive sensors. The Alpha series includes R3α, R6α, R15α,
R30α R50α, R80α and WSα sensors. The major improvements
in Alpha series over the RXX series include:
t Dynamict
•tUse of the more popular SMA type of connector.
•tCavity is machined from a solid stainless steel rod
t making for a simpler and more robust design.
Peak Sensitivity V/(m/s); [V/µbar]...... 58 [-62] dB
Operating Frequency Range............200 - 1000 kHz
Resonant Freq. V/(m/s); [V/µbar]..... 200 [800] kHz
Directionality. .................................... ±1.5 dB
.
t Environmental
•tDramatically increased thickness of the ceramic shoe for
t better mechanical stability.
Temperature Range.........................-65 to 175ºC
•tDistance from the bottom of the ceramic shoe to the
t bottom edge of sensor cavity increased for better insut lation resistance and ground avoidance.
Shock Limit........................................... 500 g
Completely enclosed crystal for RFI/EMI immunity
•tIntroduced a 30-degree angle at the bottom edge of the
t sensor cavity.
t Physical
t
Dimensions. ..... 0.75” dia. x 0.84” h (19 x 21.4 mm)
.
All these improvements make the Alpha series sensors more
robust, reliable and greatly reduce the possible grounding of
the cavity to the structure caused by wet environment.
Weight. ...........................................32 grams
.
Case Material. ............................ Stainless Steel
.
Face Material. ....................................Ceramic
.
Connector. ............................................. SMA
.
Connector Locations..................................Side
Seal................................................... Epoxy
Sensor to Preamp Cable
Application
High frequency AE sensors such as the R80α are often used
in a high noise environments on applications such as brittle
crack detection and processing of AE signals with high frequency components.
(1 or 2 meters). ....1232-X-SMA
.
Ordering Information and Accessories
R80αt ............................................... R80α or R80a
Magnetic Hold-Down . .................................. MHR15A
.
Preamplifier. .......................................0/2/4, 2/4/6
.
Preamp to System Cable
Frequency response of the R80α. Calibration based on ASTM
E1106; Calibration based on ASTM E976.
(specify length in meters)......1234
-X
Sensors include
NIST Calibration Certificate & Warranty
195 Clarksville Road, Princeton Junction, NJ 08550 Phone: 609-716-4000
Fax: 609-716-0706 Email: sales.systems@mistrasgroup.com Internet: www.mistrasgroup.com
Due to continuing improvement, MISTRAS Group, Inc. reserves the right to amend specifications without notice.
Copyright © 2010 MISTRAS Group Inc. All Rights Reserved.
Rev. 2/05 #121-04
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