Amperometric in-pipe electrochemical sensing probe
First Claim
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1. A sensing probe, configured to measure the content of an oxygen reducible substance in a fluid, comprising:
- a probe body containing an interface and processing circuit,a dry sensing head comprising an amperometric sensor configured to measure the content of said oxygen reducible substance,wherein said dry sensing head is removable from said probe body, said dry sensing head and said probe body comprising respective coupling means cooperating with each other and configured to be separable to allow removing of said dry sensing head from said probe body,wherein said sensing probe further comprises connecting elements configured to connect in a removable manner said removable dry sensing head to the interface and processing circuit of said probe body, andwherein the removable dry sensing head further comprises a cap and a printed circuit board (PCB) fixedly attached to the cap, said printed circuit board (PCB) being mounted transversally with respect to said sensing probe, the amperometric sensor being mounted on the printed circuit board (PCB), on a face opposed to the probe body.
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Abstract
A sensing probe intended to measure the content of an oxygen reducible substance in a fluid, includes:
- a probe body containing an interface and processing circuit,
- a dry sensing head including an amperometric sensor intended to measure the content of the oxygen reducible substance. The sensing head is removable. The sensing head and the probe body include respectively coupling elements cooperating with each other and able to be separated, and the sensing probe furthermore includes connecting elements designed to connect the removable sensing head to the interface and processing circuit of the probe body.
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Citations
20 Claims
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1. A sensing probe, configured to measure the content of an oxygen reducible substance in a fluid, comprising:
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a probe body containing an interface and processing circuit, a dry sensing head comprising an amperometric sensor configured to measure the content of said oxygen reducible substance, wherein said dry sensing head is removable from said probe body, said dry sensing head and said probe body comprising respective coupling means cooperating with each other and configured to be separable to allow removing of said dry sensing head from said probe body, wherein said sensing probe further comprises connecting elements configured to connect in a removable manner said removable dry sensing head to the interface and processing circuit of said probe body, and wherein the removable dry sensing head further comprises a cap and a printed circuit board (PCB) fixedly attached to the cap, said printed circuit board (PCB) being mounted transversally with respect to said sensing probe, the amperometric sensor being mounted on the printed circuit board (PCB), on a face opposed to the probe body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A sensing probe, configured to measure the content of an oxygen reducible substance in a fluid, comprising
a probe body containing a short range radio interface and processing circuit, a dry sensing head comprising an amperometric sensor configured to measure the content of said oxygen reducible substance, wherein, said dry sensing head is a removable dry sensing head, said dry sensing head and said probe body comprising respective coupling means cooperating with each other and configured to be separable to allow removal of said dry sensing head from said probe body, and wherein said sensing probe further comprises a short range radio interface enabling wireless communication between said removable dry sensing head and the radio interface and processing circuit of said probe body.
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15. A sensing probe, configured to measure the content of an oxygen reducible substance in a fluid, said sensing probe comprising:
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a dry sensing head; and a probe body, the probe body comprising i) a housing, and ii) an interface and processing circuit located within the housing, wherein, the sensing head comprises a cap, a printed circuit board fixed into the cap, an amperometric silicon sensor mounted on the printed circuit board, an interface integrated circuit mounted on the printed circuit board and transforming a sensor current signal from the sensor into a voltage signal, the cap comprises a hole in correspondence to the silicon sensor, so that, when the sensing head is immersed into a fluid, electrodes of the silicon sensor are in contact with the fluid, and each of the cap of the dry sensing head and the probe body comprise leak-tight complementary coupling elements providing for removal of the cap from the probe body. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification