This documentation describes the features, installation, and operation of the AIM9
Lm/RVlYI Module in the Series 500 or System 570. This manual also contains impor-
tant progr amming information and several example programs.
The AIM9 is a dual-channel module for making measurements with AC-driven
transducers such as LvDT's, RVDT's, and variable-reluctance transducers. Typically,
linear variable differential transformers (LvDTs) measure linear displacement, while
rotary variable differential transformers (RVDT's) measure angular displacement.
Throughout this manual, the term "transducer" implies an LVM; RVDT, or other AC-
driven, displacement-type sensor.
The AIM93 important features include the following:
Dual channels, each with differential input. -
A quick-disconnect terminal block for each channel. Connections include exci|