请问哪里可以找到有关pressure sensor的英文文章？急！！！

http://www.sensorland.com/HowPage004.html

THE PRESSURE SENSOR

With the steam age came the demand for pressure measuring instruments.
Bourdon tubes or bellows, where mechanical displacements were transferred
to an indicating pointer were the first pressure instruments, and are still in
use today.

Pressure metrology is the technology of transducing pressure into an electrical
quantity. Normally, a diaphragm construction is used with strain gauges either
bonded to , or diffused into it, acting as resistive elements. Under the
pressure-induced strain, the resistive values change.

In capacitive technology, the pressure diaphragm is one plate of a capacitor
that changes its value under pressure-induced displacement.

Pressure sensing using diaphragm technology
measures the difference in pressure of the two