Instrumentation systems generally consist of three major elements:
- An input device.
- A signal conditioning device.
- An output device.
The input device receives the quantity under measurement and delivers a proportional electrical signal to the signal conditioning device. Here the signal is amplified, filtered, or otherwise modified to a format, acceptable to the output device. The output device can be a Cathode Ray Oscilloscope (CRO) or a recorder.
The input quantity for most instrumentation systems is non-electrical. However, in order ...