cold junction


Also found in: Acronyms.

cold junction

[′kōld ′jəŋk·shən]
(electronics)
The reference junction of thermocouple wires leading to the measuring instrument; normally at room temperature.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In particular, regarding temperature measurements, data were obtained through k-type class 1 accuracy thermocouples with a cold junction electronically compensated through an HP acquisition device, leading to an overall uncertainty of about 0.3% referred to environmental conditions.
With its new wireless thermocouple connectors, cold junction compensated measurements can be transmitted back to a PC via a USB-powered receiver.
The Wireless Thermocouple Connector Series features stand-alone, compact, battery powered thermocouple connectors that transmit linearized, cold junction compensated measurements back to a USB powered receiver connected to a PC.
The Cold Junction Reference temperature will only be correct for all thermocouples under steady state ambient temperature conditions and a system completely warmed up.
They also feature 500VDC input/output isolation, reverse polarity protection and user selectable cold junction compensation.
Signal conditioning performs a variety of functions, including sensor excitation, filtering, amplification, isolation, multiplexing, and cold junction compensation.
Cold junction sensing is at the t/c point on the logger connector termination block, say JDL of Kensington House, 33 Imperial Square, Cheltenham Spa, Gloucestershire, tel:0124 267 3522.
They generate voltages based on comparing a hot junction to a cold junction held at a specific temperature.
* Has a built-in cold junction compensation and linearization.
It also has built-in cold junction compensation and open thermocouple detection and a 24-bit measurement system.
It features a built-in cold junction compensation and linearization.