Tank gauging system is mainly composed of standard metal basket, magnetostrictive liquid level sensor, platinum resistance thermometer, data collector and so on, the system maximum allowable error less than 0.05%.By calculation we choose 100 l second-class standard metal gauge as the primary standard, its maximum allowable error is better than 0.025%, oil tank level indicator far more than the fuel tank level sensor verification of fuel tankers standard 0.05% of the maximum permissible error requirement, at the same time, the structure design and manufacture of fully meets the requirement of verification of fuel tankers standard.Magnetostrictive liquid level sensor is made using magnetostrictive principle of high precision, long linear range and absolute position measurement of liquid level sensor and its circuit is simple, with flame-proof performance and good environmental adaptability, reliability and stability, and adopts non-contact measurement method, solves the caused by friction, abrasion and other low service life, its fuel tank level sensor design resolution can reach 0.1 mm.Temperature measurement using inline.
In magnetostrictive liquid level meter liquid level magnetic feet two platinum resistance thermometer, can accurately measuring oil gun during fuel outlet temperature and the temperature of the oil in the standard metal gauge, its design index value of 0.1 degrees Celsius, higher than 0.2 degrees Celsius degree value requirements.Through signals transmission lines to liquid level and temperature signal output to the use of single chip microcomputer principle in the design of the data collector to complete liquid level height and temperature signal acquisition and calculation, tank gauging system the data terminal power supply convenient way, used the 12864 LCD module for display, and design the manipulation of the human interface with PC communication function, tank gauging system appearance is small and light, suitable for outdoor use in northeast China, the great convenience for the practical work oil tank level indicator.