Abstract:
A device for determining a physical value of a liquid flowing in a pipe, without contact with said liquid, said device comprising: a sensor (3) for said physical value; a connector (2) to insert into said pipe and comprising: an internal passage (13) extending between two apertures (11, 12), a flexible membrane (6) for a pressure sensor, forming a wall of said internal passage (13); and means (27, 62) for fastening said sensor (3) onto said connector (2); characterized in that said sensor is a temperature sensor (3) fastened to said connector (2) with the sensitive part of said sensor (3) turned towards said membrane (6).
Abstract:
An imaging system which includes a housing for a radiation detector having a window disposed above and in axial alignment with the radiation detector, a variable aperture assembly which includes a base ring having a first opening and mounted on the radiation detector housing such that the first opening is in axial alignment with the window, a plate having a first aperture and adapted to engage the base ring such that the first aperture is disposed over the window, at least one aperture blade each operatively coupled to the base ring, and an aperture drive mechanism having a body and an actuator coupling member extending at an angle from the body. In addition, the imaging system includes an actuator assembly having an actuator and an actuator arm, the actuator arm disposed adjacent to the radiation detector housing in proximity to the actuator coupling member.
Abstract:
A radiation sensor (10) comprises one or more radiation sensing elements (1) providing an electric signal in dependence of incident radiation, a housing (4, 5) confining the sensing element and permitting incidence of radiation from outside onto the sensing element, plural terminals (7) for supplying electrical power to the sensor and at least for outputting a sensor output signal, and circuitry (2) receiving the electric signal of the sensing element and providing the output signal in accordance with the electric signal of the sensing element. The circuitry comprises a switching signal circuitry for generating an on/off output signal for a switchable component external to the sensor and/or a digital output signal circuitry for providing a multiple bit serial output signal, and the sensor has one output terminal (7a) for outputting the on/off output signal or the multiple bit serial output signal.
Abstract:
The infrared sensor (1) includes a base (10), and an infrared detection element (3) formed over a surface of the base (10). The infrared detection element (3) comprises an infrared absorption member (33) in the form of a thin film configured to absorb infrared, and a temperature detection member (30) configured to measure a temperature difference between the infrared absorption member (33) and the base (10). The temperature detection member (30) includes a p-type polysilicon layer (35) formed over the infrared absorption member (33) and the base (10), an n-type polysilicon layer (34) formed over the infrared absorption member (33) and the base (10) without contact with the p-type polysilicon layer (33), and a connection layer (36) configured to electrically connect the p-type polysilicon layer (35) to the n-type polysilicon layer (34). Each of the p-type polysilicon layer (35) and the n-type polysilicon layer (34) has an impurity concentration in a range of 1018 to 1020 cm−3. The p-type polysilicon layer (35) has its thickness of λ/4n1p, wherein λ denotes a center wavelength of the infrared to be detected by the infrared detection element (3), and n1p denotes a reflective index of the p-type polysilicon layer (35). The n-type polysilicon layer (34) has its thickness of λ/4n1n, wherein n1n denotes a reflective index of the n-type polysilicon layer (34).
Abstract:
A fiber optic probe having one or more photodetectors bound thereto is provided. By directly integrating thin, flexible photodetectors with an optical fiber, the probes provide a compact structure that increases throughput and decreases cost, making it practical for a clinical use. In some embodiments, the fiber optic probes are small enough for insertion into the shaft of a needle, such as a biopsy needle.
Abstract:
An embodiment of a method of performing thermoreflectance measurements with an imaging system comprises: reflecting radiation from a number of points in a sample in response to an illuminating radiation while a temperature modulation is applied to the sample; acquiring digital images of the reflected radiation after the reflected radiation passes through an aperture; and deriving a map of relative reflectivity of the sample based on the digital images. At least a portion of the illuminating radiation passes through at least a portion of the sample and is reflected at a change refractive index interface.
Abstract:
Described herein is an IR camera that can prepare a report on-board the camera in a standard file format that is substantially universally readable by a number of receiving devices, including but not limited to computers. The report preferably includes at least one IR image, at least one visual image and a table that can be populated with the output of any of the camera's measurement functions or any parametric information (time, date, emissivity, background temperature, GPS location, etc.). The report may also include text, voice, and/or visual/graphical comments and recommendations. The comments may be added directly to the report or hyperlinked to the report.
Abstract:
Exemplary embodiments relates to an optical measurement that determines the temperature in a flame and determines the particle size of the fuel present in the flame. The optical measurement device includes a color camera that measures light information in the flame and outputs measurement results and an evaluation unit that evaluates the measurement results. Further, a coal burning power plant is provided with a multitude of burners that burn milled coal each in a flame and a multitude of optical measurement devices described.
Abstract:
A device for determining a physical value of a liquid flowing in a pipe, without contact with the liquid. The device includes: a sensor for the physical value; a connector to insert into the pipe and including: an internal passage extending between two apertures, a flexible membrane for a pressure sensor, forming a wall of the internal passage; and a fastening mechanism for fastening the sensor onto the connector. The sensor is a temperature sensor fastened to the connector with the sensitive part of the sensor turned towards the membrane.
Abstract:
The infrared sensor in accordance with the present invention includes a pyroelectric element, an IC device, and a surface-mounted package. The IC device is configured to process an output signal of the pyroelectric element. The package houses the pyroelectric element and the IC device. The package includes a package body and a package lid configured to transmit infrared rays to be detected by the pyroelectric element, and has electrical conductivity. The package body is provided on its surface with plural recessed parts arranged in tiers. The IC device is mounted on a bottom of the lower recessed part. The package body includes an output wiring configured to electrically connect an output terminal of the IC device to an external connection terminal and a shielding member interposed between the pyroelectric element and the output wiring.