Sensor for analyzing or identifying property of object, sensing apparatus using same, and sensing method
AssigneeCanon Kabushiki Kaisha
InventorsTakeaki Itsuji, Shintaro Kasai
Life of this patent
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Abstract
A sensor is provided which comprises a waveguide for allowing an electromagnetic wave to propagate therethrough and disposing an object at a plurality of positions thereof, and a detecting portion for detecting the electromagnetic wave which has interacted with the object at the plurality of positions and propagated through the waveguide, wherein a property of the object is analyzed or identified based on an information obtained from the electromagnetic wave detected by the detecting portion. Thereby, accurate detection can be effected even when the amount of an object is small.
Claims9
A sensor comprising:
- a waveguide comprising a substrate and a conductor provided on the substrate, for transmitting an electromagnetic wave having at least a part of frequency band of 30 GHz to 30 THz;
- and
- a plurality of protrusions provided on the conductor,
- wherein the plurality of protrusions are provided in a propagation direction of the electromagnetic wave and provided periodically at an interval which is about a half of a wavelength of the electromagnetic wave.
A sensing apparatus comprising:
- a coplanar waveguide comprising a substrate, a conductor provided on the substrate, and a ground conductor provided on the substrate so as to have a minute gap between the conductor and the ground conductor, the waveguide for transmitting an electromagnetic wave having at least a part of a frequency band of 30 GHz to 30 THz;
- a detecting portion for detecting an electromagnetic wave which has propagated through the waveguide;
- and
- an ink jet system for ejecting a plurality of objects toward the minute gap,
- wherein the conductor and the ground conductor are disposed on a same surface of the substrate,
- wherein the minute gap is provided in a propagation direction of the electromagnetic wave, and
- wherein the plurality of objects can be disposed at an interval corresponding to a half of an wavelength of the electromagnetic wave in the minute gap in the substrate.
Dependencies are inferred from the claim text.