Many
accelerometer adhesives have been successfully used for securing
mounting bases to test objects. These include epoxies, waxes, glues,
gels, and dental cement. Some provide
more permanent attachment than others. Stiffer adhesives provide better
transmission of high frequencies. Adhesives should be selected which
perform adequately for the required application and environmental
conditions.
PCB® offers petro wax and quick bonding gel.
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How do I remove an accelerometer adhesive mount sensor?
Obviously,
the mounting of an accelerometer is critical to a successful
measurement. Accelerometers have a cost. You want to protect your
investment. The proper removal of an
accelerometer extends its useful life. Improperly removing the sensor
may cause immediate damage and failure. Do not use an impact technique
(hammer, chisel, knife) to remove the sensor. Soften the adhesive first
by use of a debonding agent. Then use a removal
tool by gently twisting the accelerometer free of its mount.
To
avoid damaging the accelerometer, a debonding agent must be applied to
the adhesive prior to sensor removal. With so many adhesives in use
(glues, dental cement, epoxies, etc.),
there is no universal debonder available. The debonder for the Loctite
454 adhesive that PCB® offers is Acetone. If you are using anything
other than Loctite 454, you will have to check with the individual
manufacturer for the debonding recommendation. The
debonding agent must be allowed to penetrate the surface in order to
properly react with the adhesive, so it is advisable to wait a few
minutes after applying before removing the sensor.
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