Patent ID: 8424381
Filing Date: 2013-04-23
Classification: G01F,H01G

Abstract:
1. A device for measuring the level of a fluid in a container comprising: a frame assembly having a first arm and a second arm, said first and second arms configured to move from a first folded position to a second expanded position; a probe element supported between said first arm and said second arm; said probe element having a sensing portion between said arms when said arms are in said second expanded position; said sensing portion configured to have a length in contact with said fluid; an electrical circuit connected to said probe element; said probe element and said circuit forming a capacitor having a capacitance which is a function of said length of said probe that is in contact with said fluid; said circuit configured to produce an output signal as a function of said capacitance; and said circuit comprising a terminal in electrical contact with said frame assembly.