The other thing to consider is the mass of the sensor, the flexibility
of the adhesive and the resulting natural frequency of the sensor
assembly. A massive sensor and/or flexible coupling will result in a
lower frequency and result in attenuation of signals above that point.

The "flexible coupling" provided by the epoxies I've tried is causing issues.


It's been suggested that I try silver-filled epoxy and potting compound.
Dental cement was also a suggestion. I'm looking at all of these.

FBt