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Speed of Response Curves

From Conax Technologies
 

 

It is the purpose of the information on this page to give you some general guidelines in estimating the speed of response you might expect from a thermocouple or an RTD. In defining any transient condition such as a temperature change, it is important that a standard measuring point be established to provide a basis of comparison. In temperature transducers, the time constant is defined as the time required, in seconds, for the temperature sensor to respond through 63.2% of the total temperature change.

The factors affecting the response rate of a temperature probe in a fluid are: a) The mass of the probe surrounding the active temperature sensitive point. b) The thermoconductivity of materials used in manufacturing the transducer. c) The mass and conductivity of the measured fluid. d) Velocity of the fluid over the probe.


Products & Services
Temperature indicators and temperature instruments are designed for temperature monitoring and analysis. These devices either come equipped with an integral sensor, or require sensor input. Search by Specification | Learn more about Temperature Indicators and Temperature Instruments
Connection heads, also referred to as thermoheads or thermocouple heads, provide a means for connecting temperature sensors and extension wires. Search by Specification | Learn more about Connection Heads
Thermistors are thermally-sensitive devices whose electrical resistance varies with temperature. Unlike RTDs and thermocouples, thermistors do not have standards associated with their resistance vs. temperature characteristics or curves. Search by Specification | Learn more about Thermistors
Resistive temperature device (RTD) elements are wire windings or other thin-film serpentines that exhibit changes in resistance with changes in temperature. They are usually made of metallic elements or alloys such as copper, nickel, or nickel-iron. Search by Specification | Learn more about Resistive Temperature Devices (RTD) Elements
Temperature controllers accept inputs from temperature sensors or thermometers, and then output a control signal to keep the temperature at the desired level. Search by Specification | Learn more about Temperature Controllers

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