 General
Purpose sensors are designed to be low cost, high sensitivity, resonant
type sensors, medium size, medium temperature range, and are used in most
AE applications. Due to the difference in cost between general purpose sensors
and all other sensor families, one would move away from general purpose
sensors only if there is a need for a different size or shape sensor due
to space limitations, need for a different frequency range (e.g. wideband),
different temperature (e.g. high or low temperature) or environmental (e.g.
waterproof) requirement. As a rule, one should always look towards selection
of a general purpose AE sensor first, since it has the best price and performance
of all the rest of the sensor families. |
