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High Resolution Pressure Compensation Device

High Resolution Pressure Compensation Device

High Resolution Pressure Compensation Device

(OP)
Hi,
 
I am looking for a high resolution pressure compensation device such a bellows, dashpot, etc, that is capable of a resolution of 1e-7 to 1e-8 (or the highest resolution possible).  The operating conditions are 15000 psi, 150°C.  We are trying to pressure compensate in the order of 5 to 10 pascals at a working pressure of 15000 psi.  Does anybody know of any companies that can meet our requirements.
 
I have sourced a calibration pressure transducer from Paroscientific that is capable of a resolution of 1e-8; however, this device will not compensate for pressure differential.
 
Thanks

RE: High Resolution Pressure Compensation Device

I think it is tough or even impossibe but I will be glad to hear if anyone can do this. Can you explain why do you need such an accuracy?

RE: High Resolution Pressure Compensation Device

(OP)
Israelkk,

We are trying to compensate for a change in volume between two pressure chambers in the order of fractions of microliters at 15 ksi.  Thus resulting in a very small pressure drop in the order of pascals.  This is for research work.

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