Abstract:
In one aspect of the present invention, a method is provided for communicating radiation pressure provided by a light wave. The method entails positioning a reflective prism (606, 607) having a near total reflective surface, including an initial transparent surface (614A, 614 B) and a pair of reflective surfaces (612) each positioned at an angle relative to the initial transparent surface. Then, a light wave is directed toward the reflective prism, such that the light wave is generally normal to the transparent surface and passes therethrough. The light wave further reflects from the first and then the second reflective surface and exits the prism through the transparent surface. In this way, radiation pressure communicated by the relecting light wave acts on the prism.
Abstract:
PURPOSE: An optical detector is provided to introduce an array structure and an electronic blocking layer of vertical quantum dots and quantum wires into an optical absorption layer of an emitter of a dual joining infrared optical detector structure and to adopt a mirror structure to the optical detector. CONSTITUTION: An optical detector includes an array structure(A) of vertical quantum dots and a blocking layer of electrons formed on an emitter optical absorption layer using a dual wall quantum well structure, a lower quarter wave reflector disposed between a collector of the emitter optical absorption layer and a semiconductor substrate, and an upper mirror disposed on the emitter optical absorption layer using a dielectric multilayer.
Abstract:
라디오미터 및 그 동작 방법과 이를 이용한 감지 시스템이 개시된다. 개시되는 일 실시예에 따른 라디오미터는, 제1 안테나, 제1 안테나와 방사 패턴의 방향이 다르게 설치되는 제2 안테나, 제1 안테나로부터 수신되는 제1 복사 전파에 대응하는 전압 레벨 및 제2 안테나로부터 수신되는 제2 복사 전파에 대응하는 전압 레벨을 각각 검출하는 신호 처리부, 및 제1 복사 전파에 대응하는 전압 레벨과 제2 복사 전파에 대응하는 전압 레벨을 기반으로 제1 안테나가 향하는 표적의 온도 변화를 검출하는 신호 분석부를 포함한다. 또한, 일 실시예에 따른 감시 방법은, 구조물로부터 설정된 거리 이내에서 소정 간격 이격되어 배치되는 복수 개의 초고주파 라디오미터에서, 구조물의 내부 또는 외부의 대상체의 밝기 온도(brightness temperature)에 대응되는 출력 전압을 각각 발생시키는 단계, 서버에서 복수 개의 초고주파 라디오미터로부터 상기 출력 전압에 관한 신호를 각각 수신하는 단계; 및 서버에서 시간 흐름에 따른 각 초고주파 라디오미터 별 출력 전압에 관한 신호의 패턴으로부터 대상체가 사람인지 또는 화염인지의 여부를 판단하는 단계를 포함한다.
Abstract:
In one aspect of the present invention, a method is provided for communicating radiation pressure provided by a light wave. The method entails positioning a reflective prism (606, 607) having a near total reflective surface, including an initial transparent surface (614A, 614 B) and a pair of reflective surfaces (612) each positioned at an angle relative to the initial transparent surface. Then, a light wave is directed toward the reflective prism, such that the light wave is generally normal to the transparent surface and passes therethrough. The light wave further reflects from the first and then the second reflective surface and exits the prism through the transparent surface. In this way, radiation pressure communicated by the relecting light wave acts on the prism.
Abstract:
In one aspect of the present invention, a method is provided for communicating radiation pressure provided by a light wave. The method entails positioning a reflective prism having a near total reflective surface, including an initial transparent surface and a pair of reflective surfaces each positioned at an angle relative to the initial transparent surface. Then, a light wave is directed toward the reflective prism, such that the light wave is generally normal to the transparent surface and passes therethrough. The light wave further reflects from the first and then the second reflective surface and exits the prism through the transparent surface. In this way, radiation pressure communicated by the reflecting light wave acts on the prism.
Abstract:
Apparatus for measuring the power of radiation that includes float means (16) and force balancing means (48, 50, 60, 80). The float means includes a target (46) for the radiation and is constructed such that the net gravitational force, including buoyancy force, if any, acting on the float means tends to accelerate the float means in a first direction. The force balancing means includes drive means (80) for providing a drive signal and means (50) responsive to the drive signal for exerting a balancing force on the float means in a second direction opposite to the first direction, such that the magnitude of the balancing force corresponds to a characteristic of the drive signal. The drive means is adapted to vary such characteristic of the drive signal, to thereby vary the balancing force, such that when the drive signal is controlled so as to cause the float means to be suspended at a predetermined height, the characteristic of the drive signal provides a measure of the force exerted on a target as a result of the radiation striking the target, and therefore of the power of the radiation. The float means preferably comprises a magnetic material (48) and the force balancing means comprises an electromagnet (50). The apparatus may directly measures the force of acoustical or electromagnetic radiation on the target, or may measure the change in buoyancy of the target caused by electromagnetic radiation heating and changing the density of the target.
Abstract:
라디오미터및 그동작방법과이를이용한화재감지시스템이개시된다. 개시되는일 실시예에따른라디오미터는, 제1 안테나, 제1 안테나와방사패턴의방향이다르게설치되는제2 안테나, 제1 안테나로부터수신되는제1 복사전파에대응하는전압레벨및 제2 안테나로부터수신되는제2 복사전파에대응하는전압레벨을각각검출하는신호처리부, 및제1 복사전파에대응하는전압레벨과제2 복사전파에대응하는전압레벨을기반으로제1 안테나가향하는표적의온도변화를검출하는신호분석부를포함한다.