From Motors and Drives

Introduction
Up to this point, basic drive theory, component hardware, and interface devices have been discussed. It is now time to put the basics to work to develop a drive system. The following information will help tie the components together into a coordinated control system. All systems configurations would be closed loop because of the precise speed and torque regulation required.

In actuality, there would be many more pieces to the system "puzzle" than what is presented here. However, this section is meant to present a general outline of drive systems and how the pieces work together in an automated environment.

© 2003 ISA

Products & Services
Laboratory and Calibration Gases
Laboratory and calibration gases are specialized for use as laboratory standards, as well as for detection, sample preparation, environmental monitoring and analysis applications.
Calibration Instruments
Calibration instruments use electrical signals or physical quantities to calibrate sensors and meters. Devices that produce electrical signals can serve as precise meters for sensor calibration, or send output signals to other devices.
Gas Instruments
Gas instruments detect, monitor or analyze gases present in an environment.
Instrument Calibration Services
Instrument calibration services test equipment and calibrate them to various standards.  
Weld Monitors and Controllers
Weld monitors and controllers are used for sensing joint quality (size or integrity), gap, position, or output power supply variations. Also, controllers are used to adjust parameters to compensate for variations in joint quality or output power.

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