专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

121. 发明专利

JP2001296166A FLOW RATE MEASUREMENT METHOD, FLOW RATE-MEASURING DEVICE, AND ELECTRONIC GAS METER 失效
公开(公告)号：JP2001296166A
公开(公告)日：2001-10-26
申请号：JP2000112263
申请日：2000-04-13
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： TANAKA SHINICHI , NUKUI KAZUMITSU , SETO MINORU , KOBAYASHI MASATOMO
IPC分类号： G01F3/22 , G01F1/00 , G01F1/68 , G01F15/06
摘要： PROBLEM TO BE SOLVED: To provide a flow rate-measuring device for reducing the power consumption, without reducing flow rate measurement accuracy by reducing wasteful consumption of power. SOLUTION: A passage flow rate measurement means 5a-1 can be operated in either measurement mode, that is selected out of a first measurement mode for measuring passage flow rate, based on physical quantity by measuring the physical quantity that changes according to the flow velocity of gas in a gas channel at every second prescribed time that is shorter than the first prescribed time, and a second measurement mode for measuring the passage flow rate based on the average value of the physical quantity which is measured plural number of times by intermittently measuring the physical quantity at every second prescribed time plural times. A measurement mode selection means 5a-3 selects the first and second measurement modes, when it detects the absence of a pulsating current by a pulsating current detection means 5a-2 and the presence of a pulsating current, respectively, thus enabling passage flow rate measurement means 5a-1 to measure the passage flow rate by the selected measurement mode.

122. 发明专利

JP2001296156A FLOW RATE MEASURING DEVICE AND ELECTRONIC FLOWMETER 失效
公开(公告)号：JP2001296156A
公开(公告)日：2001-10-26
申请号：JP2000112260
申请日：2000-04-13
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： ODA KIYOSHI , ANZAI MITSUYOSHI , KIMURA OSAMU , NUKUI KAZUMITSU , SETO MINORU , KOBAYASHI MASATOMO
IPC分类号： G01F1/00 , F17D3/18 , G01F1/68 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide a flow rate measuring device for further reducing the power consumption, without bringing about a decrease in a flow rate measuring accuracy. SOLUTION: A flowing speed sensor 1 outputs an analog flowing speed signal, in response to a flowing speed of a fluid in a channel. A drive means 3 continuously drives the sensor 1. An integrating means 7 integrates the analog signal output from the sensor 1 and outputs an analog integrated value signal, in response to the integrated value. Thus, the passing flow rate of the fluid passing the channel is measured, based on the analog integrated value signal from the means 7.

123. 发明专利

JP2001296155A ELECTRONIC INTEGRATING FLOWMETER 失效
公开(公告)号：JP2001296155A
公开(公告)日：2001-10-26
申请号：JP2000111160
申请日：2000-04-12
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： YAMAURA MICHIAKI , NUKUI KAZUMITSU , SETO MINORU , KOBAYASHI MASATOMO
IPC分类号： G01F1/00 , G01F1/68 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To provide an electronic integrating flowmeter eliminating an integration error due to an unevenness and obviating the waste of power consumption, by deciding whether a flow rate calculation is to be conducted or not by considering the output of a flow sensor which is generated, when a flow rate is '0', and omitting the calculation when the rate is '0'. SOLUTION: A flow sensor 10 provided at a fluid supply passage is intermittently driven at every prescribed time to output a signal, in response to a flowing speed of a fluid. An arithmetic means 20-2 calculates a passing flow rate, based on the output of the sensor fetched by a measuring means 20-1, and integrates the calculated passing flow rate to obtain an integrated flow rate. The measuring means decides a prescribed width with a value corresponding to a mean value of the outputs of the sensor, when the passing flow rate is '0' as the center, as an dead zone and hence eliminates calculation of the passing flow rate by the arithmetic means, when the captured output of the sensor falls within the range of the dead zone.

124. 发明专利

JP2001255187A FLOW RATE MEASURING SYSTEM 失效
公开(公告)号：JP2001255187A
公开(公告)日：2001-09-21
申请号：JP2000064625
申请日：2000-03-09
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： NAGAOKA YUKIO , ABE HIDEJI , UMEKAGE YASUHIRO , NIIMURA NORIO , NUKUI KAZUMITSU , SUZUKI MAMORU , YUASA KENICHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a flow rate measuring system, capable of accurately measuring the flow rate of a fluid, when a pressure is changed by low power consumption. SOLUTION: The flow rate measuring system comprises a flow rate measuring means 9 for measuring the flow rate, based on the signal of a flow detecting means 8 for detecting the flowing state of the fluid in a channel 7, a pressure detecting means 18 for detecting the pressure of the fluid, a measurement start/ stop means 20 for starting or stopping the measurement of the means 9, and a change measurement control means 19 for controlling the means 9 via the means 20. In this case, the means 19 has a comparison means 19B for comparing the change value detecting by the means 18 with a previously set comparison set value, and outputting a signal to the means 20 when the change value changed to a prescribed level, and a variable gain amplifying means 19A for variably setting the amplification degree of the change value, so that the vicinity of a peak value exceeds the comparison set value and the signal is input to the means 19B.

125. 发明专利

JP2001221670A FLOW RATE MEASURING METHOD AND FLOWMETER 失效
公开(公告)号：JP2001221670A
公开(公告)日：2001-08-17
申请号：JP2000333189
申请日：2000-10-31
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： HARADA TOSHIHIRO , NUKUI KAZUMITSU , SETO MINORU , KOBAYASHI MASATOMO
IPC分类号： G01F3/22 , G01F1/696
摘要： PROBLEM TO BE SOLVED: To suppress exhaustion state of a battery which is a power supply to the utmost, while ensuring necessary sensitivity in a flowmeter using a flow sensor to measure the flow rate of gas. SOLUTION: In the flowmeter equipped with the flow sensor 3, generating the electromotive force of voltage corresponding to the power consumed by the heater 34, arranged in a fluid flow channel 17 and the flow velocity of a fluid in thermopiles 32, 33, a power supply means A for intermittently supplying power to the heater 34 and a flow velocity measuring means 13A for measuring the flow velocity of the fluid, on the basis of power supplied at each time when power is supplied to the heater 34 and the voltage generated in the thermopiles 32, 33 and operated by a battery which is a power supply to measure the flow rate of the fluid based on the flow velocity measured by the flow velocity measuring means 13A, the power supply means A supplies prescribed power to the heater 34, when the flow velocity measuring means 13 measures flow velocity exceeding prescribed flow velocity V0 and supplies power of less than the prescribed power to the heater 34, when the flow velocity measuring means 13A measures flow velocity below the prescribed flow velocity V0.

126. 发明专利

JP2001183199A METHOD AND APPARATUS FOR MEASUREMENT OF FLOW RATE AS WELL AS GAS METER 失效
公开(公告)号：JP2001183199A
公开(公告)日：2001-07-06
申请号：JP37345599
申请日：1999-12-28
申请人： TOKYO GAS CO LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , YUASA KENICHIRO , NAGAOKA YUKIO , ABE HIDEJI , UMEKAGE YASUHIRO
IPC分类号： G01F1/00 , G01F1/66 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To obtain a precise flow rate value by eliminating that a significant measuring error is generated so as to deviate from the true flow rate value of a fluid even when the flow velocity of the fluid is changed due to the generation of pulsations in an apparatus and a method, for the measurement of the flow rate, as well as a gas meter in which sound waves are propagated intermittently to the fluid in which their propagation time is measured and in which the flow rate value of the fluid is obtained on the basis of the propagation time. SOLUTION: Whenever the propagation time is measured by a propagation-time measuring part 100, a flow-rate-value computing part 200 finds a flow rate factor k, corresponding to a flow rate value V to be calculated on the basis of the propagation time, on the basis of a table in which information on the correspondence relationship between the flow rate value V and the floa rate factor k corresponding to it is set inadvance. A computing operation in which the flow rate value V is multiplied by the flow rate factor k is performed. Thereby, the instantaneous flow rate value Q of a gas in a measuring duty period at this time is obtained, the average of measured values in the prescribed number of times of the instantaneous flow rate value Q is found, and a flow-rate measured vaue Q' is obtained.

127. 发明专利

JP2001183196A FLOW-RATE MEASURING APPARATUS 失效
公开(公告)号：JP2001183196A
公开(公告)日：2001-07-06
申请号：JP36596199
申请日：1999-12-24
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI
IPC分类号： G01F1/00 , G01F1/66 , G01F1/72 , G01F3/22
摘要： PROBLEM TO BE SOLVED: To obtain a flow-rate measuring apparatus such as a gas meter by which, even when pulsations are generated in a gas flow, it is eliminated that an error caused by them is generated in a measured value, by which the flow rate of a gas can be always measured precisely, in which a means used to eliminate the error can be executed without relying on a high-cost mirocomputer dealing with a high-speed/large-capacity processing operation and which can reduce a power consumption as a whole. SOLUTION: Main parts of the flow-rate measuring apparatus are constituted of ultrasonic oscillators/receivers 2a, 2b which propagate ultrasonic waves to the gas flow passing a continuity passage 1. The main parts are constituted of a gas-flow-rate measuring and control circuit 3 which controls the ultrasonic oscillators/receivers 2a, 2b so as to be driven. The main parts are constituted of a gas-flow-rate computing circuit 4 which computes and proceses signals detected by the ultrasonic oscillators/receivers 2a, 2b so as to integrate the flow rate of the gas. When the flow rate of the gas is less than a prescribed flow rate Qth, a sampling cycle Tef is set at a nonconstant cycle.

128. 发明专利

JP2001108516A SEISMOSENSOR 失效
公开(公告)号：JP2001108516A
公开(公告)日：2001-04-20
申请号：JP28547099
申请日：1999-10-06
申请人： OMRON TATEISI ELECTRONICS CO , TOKYO GAS CO LTD
发明人： SHIMOMOTO YASUSHI , KATAOKA TOMOHIRO , KADOI NOBUO , YOSHIDA SHINSUKE , NUKUI KAZUMITSU , NAKAMURA MITSUHIRO
IPC分类号： G01H1/00 , G01H11/08
摘要： PROBLEM TO BE SOLVED: To provide a seismosensor also having a switching function. SOLUTION: The seismosensor is composed of a columnar piezoelectric member 12 vertically installed in a printed circuit board 11 so as to be capable of swinging; a first electrode 14 and a second electrode 15 formed in the facing positions on the outer circumferential surface of the piezoelectric member 12; and a circular third electrode 17 concentrically arranged in the piezoelectric member 12.

129. 发明专利

JP2001108515A FIXING STRUCTURE OF SEISMOSCOPE 失效
公开(公告)号：JP2001108515A
公开(公告)日：2001-04-20
申请号：JP28545999
申请日：1999-10-06
申请人： OMRON TATEISI ELECTRONICS CO , TOKYO GAS CO LTD
发明人： BINGO HIDEYUKI , SHINOHARA KENJI , SHIMOMOTO YASUSHI , KATAOKA TOMOHIRO , NUKUI KAZUMITSU , NAKAMURA MITSUHIRO
IPC分类号： G01H1/00
摘要： PROBLEM TO BE SOLVED: To provide the fixing structure of a seismoscope having large freedom of selecting a fixing method by adopting job side adjustment. SOLUTION: A fixing base plate 12 is arranged almost in parallel in the vicinity of one side of a housing 10. A fixing disk 14 is rotatably incorporated into a fitting hole 13 of the fixing base plate 12. The seismoscope 1 is fixed to an inward facing surface of the fixing disk 14. the fixing base plate 14 is made rotatable from the outside of the housing 10 through permanent magnets 16a, 16b, and 16c of an adjusting knob 15 installed in an outward facing surface of the fixing disk 14.

130. 发明专利

JP2000171037A GAS METER 失效
公开(公告)号：JP2000171037A
公开(公告)日：2000-06-23
申请号：JP34679298
申请日：1998-12-07
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , HAYASHI HITOSHI
IPC分类号： F23N5/26
摘要： PROBLEM TO BE SOLVED: To prevent a gas meter under test from being interrupted intentionally by a third person by executing the interrupting operation of an interrupting valve only when a specified pulse field is supplied a specified number of times and a reed switch is conducted by a specified number of times. SOLUTION: A gas meter is set using a meter setter 34 comprising an electromagnet 32 and a light receiving switch 33 comprising a light receiving element. Test interruption is executed when a meter is fixed to a site and gas is supplied to a consumer. A worker generates a specified magnetic field utilizing a magnet 32 to conduct a reed switch 26 and delivers a test interruption signal to a microcomputer 24 thus closing an interrupting valve 16 while checking the function with a response signal of a LED switch 28 from a computer 24. A pulse field is supplied by a specified number of times to the reed switch 26 and test interruption is enabled only when the switch 26 is conducted by a specified number of times. The interrupting valve 16 is not closed by normal operation.

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