Gas Detector with an Ionizing Device
AssigneeInficon GmbH
InventorNorbert Rolff
Life of this patent
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Abstract
The disclosure provides a gas detector with an ionizing device for producing ions depending on a gas to be detected. The gas detector includes a catcher for receiving the electrical current produced by the ions, and a measuring device with an electrical measuring resistor. The electrical measuring resistor produces an electrical measuring potential from the current and is surrounded, at least in part, by an electrical shield resistor, denoted by RT. The same potentials, up to a deviation of at most 25%, are applied in the longitudinal direction of the electrical measuring resistor to mutually opposed regions of the electrical measuring resistor and the electrical shield resistor.
Claims14
A gas detector comprising
- an ionizing device for producing a plurality of ions depending on a gas to be detected, with a catcher for receiving an electrical current produced by the plurality of ions, and
- a measuring device with an electrical measuring resistor which produces an electrical measuring potential from a current,
- wherein,
- the electrical measuring resistor is surrounded at least in part by an electrical shield resistor, denoted by RT, and
- a same potential is applied to mutually opposed regions of the electrical measuring resistor and the electrical shield resistor, denoted by RT, up to a deviation of 25%.
Dependencies are inferred from the claim text.