Gas sensor
AssigneeCorentium AS
InventorsBjorn Magne Sundal, Erlend Bolle, Koki Yoshioka
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Abstract
A gas sensor instrument comprises a housing formed of two parts (102, 10) and a diffusion chamber inside the housing. The diffusion chamber is formed from two parts (106, 108) and at least one of the diffusion chamber parts is formed integrally with one of the housing parts. This allows a reduction in size of the instrument without compromising the size of the diffusion chamber. Additionally, a tubular projection is formed integrally with one of the housing parts to form part of a Faraday cage for shielding an amplifier circuit of the instrument.
Claims19
1-29. (canceled)
An instrument comprising:
- a housing;
- and
- a printed circuit board disposed within the housing;
- wherein a housing part of the instrument comprises an integral tubular projection extending from the inner surface thereof towards the printed circuit board so as to surround at least one electronic component thereon, and
- wherein the inner surface and a rim of said integral tubular projection are electrically conductive so that the tubular projection forms part of a Faraday cage around said at least one component.
A method of shielding at least one electronic component on a printed circuit board disposed within an instrument housing, comprising:
- providing a housing part of the instrument with an integral tubular projection extending from the inner surface thereof;
- making the inner surface and a rim of said integral tubular projection electrically conductive;
- and
- engaging said integral tubular projection with said printed circuit board so as to surround said at least one electronic component such that the tubular projection forms part of a Faraday cage around said at least one component.
Dependencies are inferred from the claim text.