| 摘要 |
A lightweight gas cylinder for the storage of compressed gas, comprises:
(a) a shut-off valve in engagement with the mouth of the cylinder;
(b) an external pressure sensor device for sensing the pressure in the cylinder, the pressure sensor device being in continuous communication with the interior of the cylinder;
(c) a temperature sensor device for sensing the temperature of the gas in the cylinder, the temperature sensor device being in thermal communication with the interior of the pressure vessel;
(d) a programmable computing device for calculating from resulting temperature and pressure signals information concerning the amount of contents in the cylinder; and
(e) a display screen operatively associated with the computing device for displaying said information. |
