Piezoelectric sensors are used for sensing force that can be produced by pressure,
weight, or acceleration. These devices have high sensitivity but are poor at
sensing low-level forces due to offset and drift caused by temperature variations.
Piezoelectric devices are normally packaged with a buffer amplifier and conditioning
as shown in Fig. 5.12b but extra gain stages may be needed before transmission.
Any extra conditioning necessary can be obtained from the manufacturers’
specifications.