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1. 发明专利

JPH02268235A RADIATION TEMPERATURE SENSOR 失效
公开(公告)号：JPH02268235A
公开(公告)日：1990-11-01
申请号：JP9024289
申请日：1989-04-10
申请人： HITACHI LTD , HITACHI SHIMIZU ENG KK , OIZUMI SEISAKUSHO KK
发明人： HOJO TOSHIYUKI , TASHIRO KISUKE , HANADA MASAMICHI , OKI YOSHIBUMI , ITO TOGO
IPC分类号： G01J5/02 , G01J5/06
摘要： PURPOSE:To reduce the effect of radiation from a surrounding structure and to improve measuring accuracy and sensitivity by applying an infrared-ray reflecting film on the outer surface of a heat insulating material or on the outer surface of a case surrounding the heat insulating material. CONSTITUTION:The outer surface of a case 6 of a radiation temperature sensor other than a light receiving surface is coated with a sheet 7 which comprises a material for reflecting infrared rays at high efficiency (e.g. a smooth foil of aluminum or stainless steel). Thus, radiation from a surrounding structure 8 is not absorbed with the radiation temperature sensor but reflected with the infrared-ray reflecting sheet 7. Therefore, a heat insulating material 5 and the case 6 of the radiation temperature sensor 7 are hard to receive the effect of the radiation from the surrounding structure 8. Since the radiation temperature sensor and the surrounding structure 8 are separated with an air layer 10, heat conduction between both parts is poor. Thus the measuring accuracy and the sensitivity can be improved.

2. 发明专利

JPH11265815A SUPERCONDUCTING MAGNET FOR MAGNETICALLY LEVITATING TRAIN 失效
公开(公告)号：JPH11265815A
公开(公告)日：1999-09-28
申请号：JP6796998
申请日：1998-03-18
申请人： HITACHI LTD , RAILWAY TECHNICAL RES INST
发明人： CHIBA TOMOO , WATANABE HIROYUKI , SUZUKI EIJI , NEMOTO KAORU , SAITOU SANETOSHI , OKI YOSHIBUMI , TSUTSUMI HIDEAKI
IPC分类号： H01F7/20 , H01F6/00
摘要： PROBLEM TO BE SOLVED: To prevent degradation of the current collecting capability of a current collecting coil due to a high frequency magnetic field from eddy current generated on the surface of the outer tank of a superconducting magnet. SOLUTION: The beam face on at least the ground coil side of an inner tank beam and the plate face of a radiation shield plate facing the inner tank beam face are regressed to the opposite side of a ground coil, and the outer surface on the ground coil side of an outer tank 2 which is faced to the circular inner side of the inner tank 2 is recessed to the opposite side of the ground coil. As a result of this, an interval between the recessed outer surface of the outer tank 2 and a current collecting coil 5 is widened, and eddy currents generated in the part can be reduced, and the effects of a high frequency magnetic filed due to this can be reduced.

3. 发明专利

JPH03175232A AIR CONDITIONER 失效
公开(公告)号：JPH03175232A
公开(公告)日：1991-07-30
申请号：JP31334089
申请日：1989-12-04
申请人： HITACHI LTD
发明人： OKI YOSHIBUMI , SAKUMA KOJI
IPC分类号： F24F11/02
摘要： PURPOSE:To detect an accurate outside air temperature and improve the accuracy of the control of an air conditioner by accommodating an outside air temperature detecting element in a mirror-finished metallic cylinder, further covering the cylinder by a metallic box with mirror-finished inner surfaces and further providing vent holes between an outdoor unit blower chamber and the metallic box. CONSTITUTION:An air conditioner is composed of an outside air temperature detecting element 4, a metallic cylinder 8, a metallic box 6 with mirror-finished inner surfaces 10, a mounting holder 5 and the vent holes 9 of an outdoor unit outer plate 3 connecting an outdoor unit blower chamber 7 and the metallic box 6 to each other. Since the outside air temperature detecting element 4 reflects infrared rays emitted from other objects and sunlight and the metallic box 6 has the mirror-finished inner surfaces 10, the mirror-finished metallic cylinder 8 reduces the radiation of infrared rays to the cylinder 8. Since the outdoor unit blower chamber 7 has a negative pressure in an operation, the outdoor air is compulsorily drawn toward the chamber 7 via the vent holes 9 formed in the outdoor unit outer plate 3. Thus, the air around the outdoor air temperature detecting element 4 covered by the metallic cylinder 8 is always exchanged with the outside air without an accumulation in the operation.

4. 发明专利

JPH1189012A SUPERCONDUCTING MAGNET FOR MAGNETIC LEVITATION TRAIN HAVING INDUCTION COLLECTOR COIL 失效
公开(公告)号：JPH1189012A
公开(公告)日：1999-03-30
申请号：JP24235997
申请日：1997-09-08
申请人： HITACHI LTD , RAILWAY TECHNICAL RES INST
发明人： EJIMA HIDEHIRO , USAMI SABURO , SUZUKI FUMIO , WATANABE HIROYUKI , CHIBA TOMOO , SUZUKI EIJI , NEMOTO KAORU , SAITOU SANETOSHI , OKI YOSHIBUMI , TSUTSUMI HIDEAKI
IPC分类号： B61B13/08 , B60L13/04
摘要： PROBLEM TO BE SOLVED: To stably supply power using electromagnetic induction between a superconducting magnet for magnetic levitation train and a levitation coil and a propulsion coil which are located on the ground and maintain a stable superconducting state for obtaining levitation and propulsion. SOLUTION: On the surface of an outer container 2 of a superconducting magnet 1, located on a vehicle so as to face a levitation coil 14 and a propulsion coil 15 located on the ground, an induction collector coil 11 is so fixed as to face the levitation coil 14. In an inner container 3 holding a superconducing coil 7 in a refrigerant, a superconducting coil 7 is fixed, off-centered to a wall face of the outer container 2 to which the collector coil 11 fixed. For refrigerant through-holes formed in a spacer metal fittings 4 for fixing the superconducting coil 7 in the inner container 3, those formed to the induction collector coil 11 side are made small and those formed to the opposide side, that is, to the truck side are made large. Furthermore, part of a spacer metal fitting 4 near the induction collector coil 11 is formed thicker than the other side of the spacer.

5. 发明专利

JPH02264853A SKIN SENSOR 失效
公开(公告)号：JPH02264853A
公开(公告)日：1990-10-29
申请号：JP8480489
申请日：1989-04-05
申请人： HITACHI LTD
发明人： OKI YOSHIBUMI , HANADA MASAMICHI
IPC分类号： G01K1/14 , G01K13/00 , G01N27/02
摘要： PURPOSE:To measure humidity and temp. in air by constituting a dummy skin part of a moisture permeable film covering a humectant having breathing action and providing a humidity detection part between the humectant and the moisture permeable film and providing a temp. detection element in the humectant. CONSTITUTION:A moisture permeable film 5 is provided on the front and rear surfaces of a humectant 7 having breathing action and an aluminum film 6 is vapor-deposited on the rears of the films 5. A dummy skin part is constituted of the humectant 7 and the film 5 and a humidity detection part is constituted of two films 6 and the humectant 7. Further, a temp. detection element 2 is embedded in the humectant 7. The films 5, 6 permit a water molecule to freely transmit and the humectant 7 performs the breathing action of the water molecule 6 according to the temp. and humidity state of air across the layers of the films 5, 6. The moisture content of the humectant 7 is changed by said breathing action and the dielectric constant of the humectant 7 is also changed. Since the impedance between the films 5, 6 is changed according to the moisture content of the humectant, said change can be detected as the change of temp. and humidity in air.

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