摘要:
An absolute radiation thermometer capable of evaluating the absolute value of infrared radiation power emitted from a target and received by a radiation sensor by means of electrical calibration, and calculating the temperature of the target basing on the responsive signal generated in the radiation sensor. To solve "Microphonic" problem, two identical sensors connected in parallel with the polarized orientations of their pyroelectric layers being in opposite directions so as to cancel the piezoelectric signals generated in the two sensors are used. Further, by using a floating power supply, which is isolated from the system power supply of the thermometer, for performing electrical heating, power supply noise can be greatly reduced.
摘要:
A waveguide for tympanic thermometer formed by an elongate hollow member having substantially ellipsoidal shape truncated at both ends along its major axis direction. The waveguide is interposed between a tympanic membrane of which the temperature is to be measured and an infrared radiation sensor so as to guide the infrared radiation from the tympanic membrane to the sensor. Alternatively, the waveguide may also be a hollow member including an end portion having a gradually reduced inner diameter toward the side of sensor. The gradually reduced end portion is preferably of a truncated half ellipsoidal shape having a length between about 1/10 to about 1/3 of the distance from the sensor to the distal end of the waveguide.
摘要:
An insulator usable in high current ion implantation systems includes increased surface due to the configuration of an inner cylinder and an outer cylinder coupled to the inner cylinder at one end. A cylindrical cavity extends between the two cylinders increasing the surface area and making the insulator resistant to being coated by a coating that could produce a leakage path.
摘要:
The present invention discloses a temperature vector analyzer, which comprises the following elements: a temperature detection device further comprising a plurality of infrared sensors; a temperature-vector display panel; a microprocessor receiving infrared-radiating heat source temperatures detected by the plurality of infrared sensors, calculating the vector components of the infrared-radiating heat source temperatures to attain a center-originating temperature vector, and presenting the temperature vector on the temperature-vector display panel; and a power source providing power for the temperature detection device, the temperature-vector display panel, and the microprocessor. The present invention can apply to detect a local heat origin or a local heat-dissipating point.
摘要:
Graphics generated by one graphics processor are transferred across a high speed interconnect bus to a frame buffer. The rendered frames from the frame buffer are presented on a display by way of a display interface in communication with the frame buffer. The display interface of another existing (e.g. integrated) graphics adapter/subsystem may be used to present the rendered frames on an interconnected display.
摘要:
The present invention discloses a probe cover for an ear thermometer, which comprises: a film cover and a base. The film cover has a cover window able to contact the probe window at the front end of the ear thermometer and a hollow cone able to contact the sidewall of the probe. The width of the cover window is greater than the width of the probe window. Thereby, the present invention can prevent the variation of infrared transmittance caused by the misarrangement and non-uniform thickness of the probe cover film disposed at the front of the probe window.
摘要:
A PTFE fiber with a low density and having a network structure that allows effective performances to be given to its finished articles and a method for manufacturing the PTFE fiber are provided. The PTFE fiber is a filament obtained by giving a heat treatment to a biaxially stretched polytetrafluoroethylene (PTFE) film, followed by slitting partially in a lengthwise direction of the film. The filament includes a network structured fiber in which single fibers are opened partially in the width direction, and the filament is an aggregate of the single fibers. This fiber is manufactured as the filament by feeding a biaxially stretched PTFE film to a revolving pin roll with needles implanted thereon, the needles being arranged so that a plurality of rows run obliquely along a circumferential direction at substantially regular intervals, and slitting the film partially in a lengthwise direction. This PTFE filament may be cut into short fibers with a cutter. The short fibers include a branch structure.
摘要:
The present invention relates to an asymmetric porous polytetrafluoroethylene membrane comprising a dense skin layer and a continuously foamed porous layer, (1) the dense skin layer having a surface roughness Ra of 20 to 165 nm; (2) the dense skin layer having a contact angle for water of 120 to 135°; (3) the porous layer having a maximum pore diameter of 0.03 to 1.0 μm; and (4) the membrane having a total porosity of 20 to 70%. The asymmetric porous PTFE membrane has an ability to separate each liquid component from a liquid-liquid homogeneous mixture in addition to known properties such as water permeability resistance, gas permeability, sealing property and electric property, wherein change of these properties over time is small.
摘要:
Disclosed is a water-proof and dust-proof membrane assembly and applications thereof. The water-proof and dust-proof membrane assembly comprises a body and a supporting member. The body is of membrane and has a first surface, a second surface, and an asymmetric porous structure formed between the first surface and the second surface of the body. The asymmetric porous structure has a thickness ranging between 1 μm and 1000 μm, a first volumetric porosity ranging between 5% and 99%. The asymmetric porous structure has plural pores, and each pore has a pore diameter between 0.01 μm and 15 μm. The supporting member is of a polymeric material and has a first contacting surface, a second contacting surface, and a second volumetric porosity which is greater than the first volumetric porosity. The first contacting surface of the supporting member is adhered to the first surface of the body.
摘要:
Disclosed is a polymeric electret film as well as the method of manufacturing the same. The polymeric electret film comprises a polytetrafluoroethylene film and an electrode layer. The polytetrafluoroethylene film includes a porous layer, which has a porous structure. The porous structure has a pore diameter ranging between 0.01 μm and 5.0 μm and has a porosity ranging between 20% and 95%. The polytetrafluoroethylene film has a thickness ranging between 1 μm and 50 μm, and is preferably made of expanded porous polytetrafluoroethylene. The polymeric electret film has a surface potential ranging between 0.1 V and 1000 V.