|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||G01F-022/02 G01F-023/18 G01M-003/32 G01L-007/06|
|미국특허분류(USC)||73/149 ; 73/492 ; 73/301 ; 73/1H|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 28 인용 특허 : 0|
A mass sensoring system for monitoring the amount of fluid in a storage tank with an accuracy high enough to determine both the quantity present and the potential loss of fluid at a loss rate of 0.05 gal/hr or at least 0.1 gal/hr. The system utilizes a pressure sensor positioned at the bottom of the tank and in contact with the fluid. This device includes a bellows unit whose displacement is correlated to changes in the mass of fluid in which it is immersed, and a transducer for monitoring the position of the bellows, wherein the interior of the bellows ...
A system for monitoring fluid quantity in a storage tank, comprising (a) a detection device for location at a bottom of the tank and in contact with the fluid, the device including a bellows unit immersed in the fluid, and a displacement sensor for detecting displacement of the bellows and for issuing an output signal representative of the detected bellows displacement, and (b) a processor unit for monitoring said sensor output signal and for correlating such output signal with changes in the mass of the fluid, for determining fluid quantity and loss rat...