Carbon Monoxide Gas Sensor Principle
Schematic diagrams of Electrochemical-type gas sensor and Chemical reactions Image Credits : figaro Electrochemical-type gas sensor are amperometric fuel cells with
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Calibration and Preventative Maintenance Procedures
Calibration and Preventative Maintenance Calibration: A comparison of two instruments or measuring devices one of which is a standard of
Square-root characteristics of Differential Pressure Flow Meters
Differential pressure developed by a venturi, orifice plate, pitot tube, or any other flow element is proportional to the square-root of flow rate.
RTD Sensor Connections
Proper connections for all three types of RTD sensor (2-wire, 3-wire, and 4-wire) to a user configurable transmitter are shown
Magnetostrictive Level Measurement
A variation on the theme of echo-based level instruments, where the level of some process material in a vessel is
Radar Level Measurement
Radar level instruments measure the distance from the transmitter (located at some high point) to the surface of a process
RTD Standards
RTD Standards A resistance temperature detector or platinum resistance thermometer works on the principle that the electrical resistance of a
Error sources creating uncertainty in Calibration
Through measurement, we try to obtain the value of an unknown parameter. However this measured value cannot be the actual
4-wire Passive versus Active Transmitters
4-wire “passive” versus “active” output transmitters Some self-powered (4-wire) analog electronic transmitters are designed to behave as electrical loads rather
Nuclear Level Detectors Cascade or Master/Slave concept
A typical Nuclear / Nucleonic source and detector level measurement is shown in Below Fig 1. Also see : Nuclear