Technical Principles of Valves Solenoid valves are used wherever fluid flow has to be controlled automatically. They are being used to an increasing degree in the most varied types of plants and equipment.
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Low Noise Thermocouple System A low noise thermocouple system consists of a probe, a connector and wire. Each component has distinct noise and they provide a way to reduce electrical noise
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Fundamentals of pH Measurement and Dissolved Oxygen Analysis Dissolved oxygen (DO) is the term commonly used in liquid analytical work for the measurement of the amount of oxygen dissolved in a unit volume of water.
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How Does a PID Controller Work? As its name implies, a PID controller combines proportional control with additional integral and derivative adjustments which help the unit automatically compensate for changes in the system.
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Contact Closure Inputs: Connect Digital Input & Output DAQ Board Many times it is necessary to monitor a contact closure using a PC. Some applications include monitoring a relay closure on a machine to record on-off times, or simply as an alarm to notify someone of an open freezer door.
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Scaling Voltage & Current to Engineering Units It is very often necessary to convert a voltage, millivot or current reading into a more useful value such as PSI, GPM, LBS, etc.
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Troubleshooting Thermocouple Input Devices Noise is unavoidable in PC based data acquisition systems. There is board induced noise which can be measured by shorting an analog input to ground and taking a series of readings and plotting them in a histogram.
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