Types of Signal Transmission
Introduction The secondary electronics of a transmitter amplify and condition the weak electrical signals generated by the sensor, so that the signals can be sent...
Non-Contact Temperature Measurement
Introduction All the targets radiate energy in the infrared spectrum. The hotter the target, the more energy it radiates. Very hot targets radiate in both...
What is optical pyrometer?
Introduction A pyrometer, or radiation thermometer, is a non-contact instrument that detects the temperature of an object’s surface by measuring the temperature of the electromagnetic...
Square root extractor for DP flow measurement
Why use square root extractor for DP transmitter? The DP flowmeters measure the differential pressure across the constrictions made in the flow channel. The differential...
UV type fire detectors
Introduction In process plants, sudden release of hydrocarbon / self igniting fluids may develop rapidly into a fire. In such cases it is imperative that...
Open channel flow measurement devices | Weirs and Flumes
The primary devices used in open channel flow measurements are weirs and flumes. Unlike the flow through the closed channel, the height of the flow...
WHAT IS GEIGER MULLER COUNTER
What is a Geiger Muller? The Geiger-Müller tube or the G-M tube is the sensor element of the Geiger counter instrument used for the detection...
Working of Infrared Gas detector
Introduction The infrared (IR) Gas detection method is based on the absorption of infrared radiation at specific wavelengths as it passes through a volume of...
Diaphragm box level meter
The diaphragm box level meter is used to measure the level of the open tank. The box contains a large amount of air, which is kept...
Working of Flame Ionization Detectors
Introduction Several detector designs exist for process gas chromatographs. The two most common are the flame ionization detector (FID) and the thermal conductivity detector (TCD)....