Patent ID: 7742890
Filing Date: 2010-06-22
Classification: G01K

Abstract:
1. A compensation method for cold junction of temperature-controlling console, the temperature-controlling console comprising a controller, a cold junction sensor and an external temperature sensor, where the cold junction sensor and the external temperature sensor are electrically connected to the controller, the method comprising the steps of: a) the controller identifying the number of connected consoles and an arrangement order of the consoles by a linking process; b) the controller receiving temperature data from the cold junction sensor and the external temperature sensor; c) the controller performing temperature compensation for cold junction according to the temperature data and the arrangement order; wherein each of the consoles comprises a master/slave communication end, a serial input end, and a serial output end, the serial output end of one console electrically connected to the serial input end of console of next stage and the master/slave communication ends of all console being electrically connected in parallel to form a console series, the console at one end of the console series being a master temperature-controlling console and others being slave temperature-controlling consoles, the console at another end of the console series being a first slave temperature-controlling console, the method comprising the steps of: d) the master console sending a communication protocol data to all the slave consoles; e) the slave consoles setting up the communication protocol thereof according to the communication protocol data; f) the first slave console generating a serial number of one and sending the serial number to a next slave console; g) the next slave console adding one in the received serial number and sending the serial number to a further next slave console; h) repeating step d); i) when the master console receives the serial number from a slave console connected thereto, the master console sets a total number of the slave consoles equal to the received serial number; and j) the master console setting up station number for each slave console through the master/slave communication end.