Microprocessor controlled system and method for automatically de

Details Microprocessor controlled system and method for automatically de Microprocessor controlled system and method for automatically de

1990-06-08

1991-12-24

Dixon, Joseph L.

Boots, shoes, and leggings

364509, 374142, 73292, 73313, G01M 338, G01F 2310

Patent

active

050758772

ABSTRACT:
A microprocessor controlled system and method for automaticaly determining the rate of leakage from a fluid storage tank. The method includes four phases. In Phase #1 the operator manually enters into the system the phase setting, the tank type, the tank material, the tank diameter, the tank volume, and the type of product in the tank. In Phase #2 the operator manually enters into the system the API gravity and the API temperature of the product it the tank. In Phase #3 the microcontroller calculates the thermal coefficient of expansion of the product, and maintains the level of product in a stand tube and computes the product being put in and taken out of the stand tube. In Phase #4 the level of the product in a stand pipe is lowered to a point where the effect of change in the tank measurements is minimized, and the product in and product out is accurately measured, the temperature change and the volume change are measured, and the actual change in volume is automatically calculated over a test period to thereby determine the tank leakage.

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