초록 ▼

A novel sensing device having a unique structure, for measuring volume, position or mass of matter (11) comprising of a housing (12) having a removable top (13), a permanent bottom (14), an electronic oscillator board (15) having plurality of electronic components for measuring volume, position, or

A novel sensing device having a unique structure, for measuring volume, position or mass of matter (11) comprising of a housing (12) having a removable top (13), a permanent bottom (14), an electronic oscillator board (15) having plurality of electronic components for measuring volume, position, or mass of matter. A coax type wire (16) having a first end (17) connected to said electronic oscillator board (15) and a second end (18) terminating at the bottom of receiver hole (20). A retainer (19) used to form said receiver hole (20) having a top end (21) open to said permanent bottom (14) on said housing (12) to accommodate said coax type wire (16). Said receiver hole 20 having a bottom end (22) and lower end (25) being isolated by said non-conductive material (23). Said non-conductive material (23) having an upper end (24) being attached by mounting means (26) to said permanent bottom (14) of housing (12).

대표청구항 ▼

1. A device for sensing material level in a vessel comprising:a top member containing an electronic oscillator board; a bottom non-conductive hollow elongated member mounted to the top member, wherein said bottom member contains therein a hollow elongated retainer, said retainer containing therein a

1. A device for sensing material level in a vessel comprising:a top member containing an electronic oscillator board; a bottom non-conductive hollow elongated member mounted to the top member, wherein said bottom member contains therein a hollow elongated retainer, said retainer containing therein a coaxial wire having a first end connected to said electronic oscillator board and a second end terminating near the bottom end of said hollow elongated retainer. 2. The device of claim 1, wherein said top member is air-, dust-, and water-tight.3. The device of claim 1, wherein said electronic oscillator board outputs a pulse with respect to the oscillator frequency, said frequency responsive to changes in the electrical capacitance of said coaxial wire.4. The device of claim 1, wherein said top member is removable and comprises a permanent bottom member mounted to said bottom member.