I'm posting this here rather than in Test & Measurement cos Capsule Makers are more likely here.
http://www.ebay.co.uk/itm/261730365132
If this is the item I remember, it will
- accurately measure capsule capacitance
- change in capacitance with polarizing voltage
- collapse voltage for the diaphragm
very quickly & conveniently.
It has a built in Electrometer that can measure polarising voltage with Gohm source. It's a VERY HiZ Wheatstone bridge.
If you make your own capsules, you should get someone in the UK to bid for this or its mates.
http://www.ebay.co.uk/itm/261730365132
If this is the item I remember, it will
- accurately measure capsule capacitance
- change in capacitance with polarizing voltage
- collapse voltage for the diaphragm
very quickly & conveniently.
It has a built in Electrometer that can measure polarising voltage with Gohm source. It's a VERY HiZ Wheatstone bridge.
If you make your own capsules, you should get someone in the UK to bid for this or its mates.