专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2003240714A LIGHT INTERFERENCE TYPE FLUID CHARACTERISTICS MEASURING APPARATUS 审中-公开
公开(公告)号：JP2003240714A
公开(公告)日：2003-08-27
申请号：JP2002045002
申请日：2002-02-21
申请人： RIKEN KEIKI KK
发明人： ISHIGURO TOMOO , HIRAYAMA TOMOJI
IPC分类号： G01N21/45
摘要： PROBLEM TO BE SOLVED: To examine the function of a sampling pump or leakage of a flow path without using a pressure sensor. SOLUTION: A light interference type fluid characteristics measuring apparatus in which a measuring chamber 1 into which a gas to be examined flows, reference chambers 2, 3 in which a standard gas is sealed are installed parallel to measure fluid characteristics based on a displacement of an interference fringe of a light which passes through the measuring chambers and the reference chambers, is provided with a solenoid valve 5 for sealing the flow path of the gas of the chamber 1, and a pressure examining means 21 for detecting the moving amount of the interference fringe during the period for sealing the flow path. COPYRIGHT: (C)2003,JPO

2. 发明专利

JP2003215001A GAS SUCTION PUMP APPARATUS AND GAS SUPPLY ADAPTER AND GAS WARNING UNIT 审中-公开
公开(公告)号：JP2003215001A
公开(公告)日：2003-07-30
申请号：JP2002015756
申请日：2002-01-24
申请人： RIKEN KEIKI KK
发明人： KOYANO JUNICHI , TAJIMA HIDEJI , TAKEI YASUNORI , AIDA TAKUO
IPC分类号： G01N1/22 , F04B37/10 , F04B41/00 , G01N1/00 , G01N1/24 , G08B21/14
摘要： PROBLEM TO BE SOLVED: To provide a gas suction pump apparatus which is easy to be constituted as a small size convenient for portability and has high convenience for use and to provide a gas warning unit. SOLUTION: The gas suction pump apparatus comprises a casing having a substantially rectangular frame-like sectional shape in size slender in a gas flowing direction and held by gripping with a hand, a circuit board for control arranged in the casing to extend in parallel with an upper wall. The apparatus further comprises a pump unit disposed in one sidewall side region at a lower side of the board in a state in which one end and the other end of a gas channel formed of the pump unit are respectively connected to a gas inlet and a gas exhaust port, and a battery charging chamber provided in the other sidewall side region. The gas warning unit comprises the pump unit, and a portable gas alarm unit having a specific gas supply adapter mounted thereat and connected to the pump unit via a connecting tube. COPYRIGHT: (C)2003,JPO

3. 发明专利

JP2002022655A GAS DETECTOR OF GAS-MEASURING APPARATUS TO BE SET OUTDOORS 失效
公开(公告)号：JP2002022655A
公开(公告)日：2002-01-23
申请号：JP2000205237
申请日：2000-07-06
申请人： RIKEN KEIKI KK
发明人： NAKAMURA YUKIO , WATANABE YOSHIAKI , KONO HIROSHI , SUGIYAMA HIROAKI
IPC分类号： G01N1/00 , G01N21/27 , G01N21/35 , G01N21/3504
摘要： PROBLEM TO BE SOLVED: To make a gas for calibration reach a sensor without requiring a shielding member such as a gas injection cylinder or the like. SOLUTION: A calibration gas injection port 6 is formed at a position opposite to an explosion-proof case 26 of a drip-proof case 1. The calibration gas G jetted from the calibration gas inflow port 6 reaches the sensor 25 through the explosion-proof case 26.

4. 发明专利

JP2001338365A RACK BUILT-IN TYPE GAS ALARM SYSTEM 失效
公开(公告)号：JP2001338365A
公开(公告)日：2001-12-07
申请号：JP2000155697
申请日：2000-05-26
申请人： RIKEN KEIKI KK
发明人： TAJIMA HIDEJI , KAWAI NOBUHISA
IPC分类号： G08B21/12 , G08B21/00
摘要： PROBLEM TO BE SOLVED: To provide a rack built-in type gas alarm system in which parts can relatively easily be exchanged without needing a special tool. SOLUTION: A pump unit 30 and a gas sensor 23 which are frequently subjected to maintenance are elastically held by a fixing frame 7 with insertable and extractable fixtures 34 and 52, and the fixing frame 7 can also be inserted and extracted into/from a base body.

5. 发明专利

JP2001208727A METHOD FOR EXAMINING SENSITIVITY OF CONSTANT POTENTIAL ELECTROLYTIC TYPE GAS SENSOR AND GAS MEASURING APPARATUS USING CONSTANT POTENTIAL ELECTROLYTIC TYPE GAS SENSOR 失效
公开(公告)号：JP2001208727A
公开(公告)日：2001-08-03
申请号：JP2000019455
申请日：2000-01-28
申请人： RIKEN KEIKI KK
发明人： ISHICHI TORU , UCHIKOSHI SHOICHI , ISHIBASHI MASARU , TSUKAHARA TAKANORI
IPC分类号： G01N27/416
摘要： PROBLEM TO BE SOLVED: To examine the sensitivity of a constant potential electrolytic type gas sensor without using actual gas. SOLUTION: The pulse with a potential V1 of 4-300 mV, a pulse width T of 0.01-0.5s and a product V1×T of 0.002 (Vs) or less of a pulse generation means is applied to the constant potential electrolytic type gas sensor 1. At least, an acting electrode 6 and a counter electrode 7 are provided in a cell 3 housing an electrolyte 2, the prescribed voltage of a constant potential power supply 10 is applied across the acting electrode 6 and the counter electrode 7 to output an electrolytic current proportional to the concentration of gas, and the sensitivity of the gas sensor 1 is inspected on the basis of the electrolytic current due to the pulse.

6. 发明专利

JP2001091508A DEVICE FOR MEASURING PERFLUOROCARBONS 失效
公开(公告)号：JP2001091508A
公开(公告)日：2001-04-06
申请号：JP26973399
申请日：1999-09-24
申请人： RIKEN KEIKI KK
发明人： KAWABE TETSUYA , YAMAMOTO AKIHIRO
IPC分类号： G01N31/12 , G01N1/22 , G01N1/28 , G01N31/00
摘要： PROBLEM TO BE SOLVED: To accurately measure perfluorocarbons to the extent of approximately management concentration regardless of the presence or absence of fluorine- family detergent. SOLUTION: A first reactor 1, a moisture absorption cylinder 4, a second reactor 6, and a detection-paper-type gas detection device 10 that is an acid gas detection means are connected in series, at the same time, the heating temperature of the first reactor 1 is set to a value where the pyrolysis of fluorine-family detergent can be made and at the same time perfluorocarbons cannot be modified as much as possible, the heating temperature of the second reactor 6 is set to a value for thermally decomposing the perfluorocarbons, only the fluorine-family detergent can be thermally decomposed by acid gases using the first reactor 1 for eliminating with the moisture absorption cylinder 4, and the surplus water of the perfluorocarbons through the moisture absorption cylinder 4 is eliminated for securely and thermally decomposing into an acid gas using the second reactor 6.

7. 发明专利

JP2001013128A PERFLUOROCARBON MEASURING DEVICE 失效
公开(公告)号：JP2001013128A
公开(公告)日：2001-01-19
申请号：JP18786699
申请日：1999-07-01
申请人： RIKEN KEIKI KK
发明人： KAWABE TETSUYA , YAMAMOTO AKIHIRO
IPC分类号： G01N31/00 , G01N1/28
摘要： PROBLEM TO BE SOLVED: To measure highly precisely perfluorocarbons having an approximate control concentration regardless of existence of a fluorine-based detergent. SOLUTION: A fist reaction furnace 1, a water scrubber means 4, water penetrating tubes 5, 8, a second reaction furnace 9, and a detector paper-type gas detecting device 12 which is an acid gas detecting means are connected in series, and a heating temperature of the first reaction furnace 1 is set at such a temperature that a fluorine-based detergent can be thermally decomposed and that perfluorocarbons are not denatured as much as possible, and a heating temperature of the second reaction furnace 9 is set at such a temperature that the perfluorocarbons are thermally decomposed. Only the fluorine-based detergent is thermally decomposed into acid gases by the first reaction furnace 1 and removed by the water scrubber means 4, and after removing excessive water in the perfluorocarbons passing through the water scrubber means 4, the perfluorocarbons are thermally decomposed surely into acid gases by the second reaction furnace 9.

8. 发明专利

JP2000346766A PORTABLE GAS DETECTOR 失效
公开(公告)号：JP2000346766A
公开(公告)日：2000-12-15
申请号：JP15953699
申请日：1999-06-07
申请人： RIKEN KEIKI KK , OSAKA GAS CO LTD
发明人： KONDO HARUHIKO , KIZAKI SHOJI , UCHIKOSHI RYOZO , IWAO KEIZO , NAKAMARU TETSUYA
IPC分类号： G01N27/12 , G01N1/24 , G01N27/00
摘要： PROBLEM TO BE SOLVED: To automatically re-drive a pump without requiring the re-closing of a power supply in the short-time rise of negative pressure. SOLUTION: A gas detector has a gas sensor 12 and a suction pump 16 built therein and is equipped with a battery 31, a pressure sensor 17 for detecting the suction pressure of the suction pump 16 and a microcomputer 16 for stopping the supply of power to the suction pump 16 when it is detected that suction pressure rises from a reference value continuously for a predetermined time and re-driving the suction pump 16 when the lowering of suction pressure is detected after the stop of the supply of power and, when suction pressure rises by a factor other than the suction of a liquid, the removal of the rising cause of suction pressure is detected by the pressure sensor 17 to automatically re-drive the suction pump 16.

9. 发明专利

JP2000292351A OPTICAL INTERFERENCE TYPE FLUID CHARACTERISTIC MEASURING DEVICE 失效
公开(公告)号：JP2000292351A
公开(公告)日：2000-10-20
申请号：JP10149199
申请日：1999-04-08
申请人： RIKEN KEIKI KK
发明人： ISHIGURO TOMOO , HIRAYAMA TOMOJI
IPC分类号： G01N21/45
摘要： PROBLEM TO BE SOLVED: To enlarge a measuring range and a dynamic range without elongation of an image sensor. SOLUTION: This device is equipped with an image sensor 14 for receiving an image of an interference fringe generated by a light beam passing through a measuring cell composed so that a phase change of the interference fringe does not exceed ±πduring the period of one sampling cycle and a reference cell juxtaposed therewith, a Fourier analysis means 24 for calculating the phase θ of a fundamental wave component included in an interference fringe signal from the image sensor 14, and a shifted cycle number detection means 25 and an addition and subtraction means 26, for judging whether the phase θ calculated by the Fourier analysis means 24 satisfies a physical restriction that a phase change caused by a fluid characteristic of the measuring cell does not exceed ±π during one sampling cycle or not, and for outputting the phase θ as a phase changing quantity in the case of satisfying the restriction, and for outputting the value obtained by adding or subtracting 2 π. as the phase changing quantity in the case of not satisfying it. And, a contradiction of a solution of the Fourier analysis means 24 is removed by utilizing positively the fluid characteristic of the measuring cell.

10. 发明专利

JP2000206069A THERMAL REACTION FURNACE FOR ANALYSIS 失效
公开(公告)号：JP2000206069A
公开(公告)日：2000-07-28
申请号：JP776299
申请日：1999-01-14
申请人： RIKEN KEIKI KK
发明人： KOBAYASHI HISAYOSHI , IIJIMA TETSUYA
IPC分类号： G01N25/00
摘要： PROBLEM TO BE SOLVED: To provide a furnace that can be miniaturized and has improved reaction efficiency by winding a heater wire on a straight-line area near the bending part of a pipe being formed in a U-shaped, and at the same time, packing the periphery with a heat-insulating material, and then setting a side apart from the heater wire out of the openings of the pipe as a as inflow port. SOLUTION: Installation is made so that a side where a heater wire 2 is wound is at a lower portion, an opening 1c at a side apart from the heater wire 2 used as a gas inflow port, and a detection means is connected to the other opening 1d. When a gas to be inspected is injected in this state, it is heated at a straight-line area 1e being heated by conduction and radiation, and flows into a bend part 1a. The gas becomes a turbulence at the bend part 1a with a small radius of curvature, and flows into a straight-line part 1b, by the heater wire 2. As a result, the gas flows into the straight-line part 1b while being stirred and comes into contact uniformly with a pipe wall whose temperature is increased by the heater wire 2, and the temperature of an entire section increases rapidly to a preset temperature, and is subjected to thermal decomposition and reaction, thus generating a detectable constituent.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式