A device to measure pressure is disclosed. In one embodiment, the device includes at least one element with two layers separated by a space which changes over a variable time period in response to a voltage applied across the two layers. The time period may be measured and indicative of the ambient pressure...http://www.google.com.au/patents/US7860668?utm_source=gb-gplus-sharePatent US7860668 - Pressure measurement using a MEMS device