| 摘要 |
PURPOSE:To improve measuring accuracy, by, in the case of gas adsorption heat measurement, electronic computation control of data based on a sensor output and automating measuring operation with a reduced measuring time. CONSTITUTION:A strorage cabinet 2 accommodating an adsorption gas, such as NH3 is installed outside of a constant temperature oven 1 and gas bomb 3, specimen vessel 5 containing a specimen 4, such as silica alumina and comparing vessel 6 with approximately the same capacity as said vessel 5 are arranged in the oven 1. And, on the bottom surfaces of vessels 5 and 6, temperature sensors 13, 14 are installed, data measured by these sensors 13, 14 and a pressure sensor 9 are admitted into a microcomputer 20 as an output and on the other hand, by this microcomputer 20 the first through to fifth valves V1-V5 are controlled for opening and closing and further, the microcomputer 20 can be connected with an output apparatus 40. By this arrangement, measuring operations can be automated and measuring time can be reduced with higher measuring accuracy. |
