Method and device for particle and gas detection
AssigneeBeamonics AB
InventorsJesper BORGGREN, Can XU, Magnus BIRCH, Kristian BERGFORS
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Abstract
A device for detecting a property of a gas comprising a light source configured to emit a light along at least a transmission axis. The device comprises a light detection arrangement comprising: a light sensor configured to output a sensor signal and a lens arrangement having a lens plane, and being configured to direct the light from the light source and scattered by the gas to the light sensor. The device also comprises an actuator assembly configured to move the light sensor in a direction parallel to at least a first axis. The first axis, the transmission axis, and the lens plane intersect such that a Scheimpflug condition is achieved.
Claims22
A device for detecting a property of a gas comprising:
- a light source configured to emit a light along at least a transmission axis,
- a light detection arrangement comprising:
- a light sensor configured to output a sensor signal,
- a lens arrangement having a lens plane, and being configured to direct the light from the light source and scattered by the gas to the light sensor,
- an actuator assembly configured to move the light sensor in a direction parallel to at least a first axis,
- wherein the first axis, the transmission axis, and the lens plane intersect such that a Scheimpflug condition is achieved.
A method for detecting a property of a gas comprising:
- emitting a light along at least a transmission axis,
- directing the light scattered by the gas to a light sensor using a lens arrangement having a lens plane,
- imaging a volume of gas at a particular distance from a device by moving the light sensor to a corresponding position along a first axis,
- wherein the first axis, the transmission axis, and the lens plane) intersect such that a Scheimpflug condition is achieved.
Dependencies are inferred from the claim text.