| 摘要 |
<p>The invention relates to an installation for metrologically checking the temperature sensors, comprising a computer (1) whose memory contains functions for the transfer of the sensors involved in determinations (R e, R s and t c), interconnected with a buffer circuit (4) which, by means of a relay (5), controls the heating installation of furnace (6), wherein there are the standard sensor (Re) and the sensors to be checked (Rs and TC), with a digital/analogous converter (2) by means of which there is adjusted the current intensity in the electric circuit, where there are serially connected the resistive sensors (Re and Rs) and a digital/analogous converter (3) which takes over and codes the signal from the sensors, the computer calculating the temperature determination errors and compares them with the precision class, wherein there are obtained an output increase, simplification of installation, lowering of the determination errors and the shortening of the checking time.</p> |
