| http://www.w3.org/ns/prov#value | - An indicator for measuring the fluid level in a tank, said tank including a member therein movable in following relation to said fluid level, said indicator being mounted in said tank and comprising;(a) a housing fixed to said tank;(b) at least one annular inductive coil within said housing;(c) a core actuator surrounding one end of said housing, said core actuator comprising a cup-shaped drum wit
|
