High Temperature Accelerometers
Download High temperature Vibration brochure
High Temperature Accelerometers
[excess of 1200º F (650º C)]
Many operating engine environments generate temperatures well in excess of 550º F (288º C). Above this temperature, many of the design features and materials used in high temperature accelerometers change considerably.
For 900º F and 1,200º F (485º C and 650º C) operating environments, PCB® offers a range of both single ended (measurement output as a signal and ground) and differential (measurement output as a plus and minus signal) sensors. The former tend to be smaller and more suitable for short term testing needs, while the latter are more appropriate for long term monitoring applications.
Obviously, the environments in which these sensors operate are challenging.
In fact, in some of the highest temperature operating environments, the operating sensor measures vibration signatures while glowing red hot!
These sensors are complemented by both lab-grade and in-line charge amplifier systems. This differential charge amplifier is suitable for interfacing to any of PCB’s differential charge output accelerometers.
The accelerometers and charge amplifiers summarized here are only a small subset of the available sensors that are documented in PCB’s more complete Test and Measurement Catalogs or at our web site at www.pcb.com. Of course, custom designed accelerometers are always available.
To find a selection of products and specifications check out our 356A70, 356A71 and 357 models.
- Model 357C90 High-temperature Hermetically Sealed Accel
- Design Updates and Selection Considerations for High Temperature and Cryogenic Aerospace Sensors
Exclusively at PCB
High-temperature Teardrop Accelerometer for Aerospace
Model 357A07- Miniature teardrop
- Charge accelerometer 1.7 pC/g
- Low outgas
- Hermetically sealed
- High-Temperature to 500 °F (260 °C)
“High temperature ICP®” accelerometers operate to 325º F (163º C).
In higher temperature environments, PCB® separates the electronics to an in line charge amplifier that can be placed in a temperature environment that is below 121º C (250º F). In these cases, PCB’s accelerometer can be operated in environments with temperatures exceeding 1000º F (538º C). PCB’s customers often refer to these sensors as “charge output” accelerometers, since their output is an electrical charge proportional to acceleration.
Because of its temperature and high/complex vibration environment, the turbine engine measurement environment is perhaps the most demanding applications for accelerometers. With 30 years of high temperature measurement experience PCB® has developed a range of piezoelectric materials and technologies that provide accurate, reliable measurements in this challenging environment. With the cost (and non-repeatability) of each turbine engine test, PCB’s customers have come to expect and rely on this accuracy and reliability.
Since PCB® manufactures the majority of its own piezoelectric materials, we offer an extensive array of charge mode accelerometer form factors, sensitivities, frequency ranges and sizes. A few of the single ended accelerometers for use in up-to-288º C (500º F) environments are presented below. Complementing this range of sensors is a variety of in-line and laboratory grade bench top and rack mounted charge amplifiers. A small representative selection of these amplifiers is included below.
The accelerometers and charge amplifiers summarized here are only a small subset of the available sensors that are documented in PCB’s more complete Test and Measurement Catalogs or at our web site at www.pcb.com. Of course, custom designed accelerometers are always available.
To find a selection of products and specifications check out our 356, 357 and 320 models.
From ready-to-ship stock products, to custom-made specials, PCB® proudly stands behind all products with services you value most, including our 24-hour customer support, strategic global distribution network, and our industry-exclusive Lifetime Warranty.
Contact us with your next test & measurement project!
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