[time-nuts] QCM

Ulrich Bangert df6jb at ulrich-bangert.de
Wed Oct 24 06:36:35 EDT 2007


again my question is a bit OT: Has anyone of you personal experience
with QCMs (Quarz Crystal Microbalances) and give me a recommendation on 

a) what surface coating is suggested if the aim is to measure small
amounts of humidity in clean air

b) where such crystals may be supplied from in small quantities

c) or if anyone is aware of a ready to go humidity sensor based on QCM

Best regards and TIA 

Ulrich Bangert
Ortholzer Weg 1
27243 Gross Ippener 

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