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11. 发明专利

JPS54663A FLOW SPEED AND RATE METER 失效
公开(公告)号：JPS54663A
公开(公告)日：1979-01-06
申请号：JP6312577
申请日：1977-05-30
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： SAWAYAMA TAKEHIRO , ITOU ICHIZOU , AGA TOSHIO , ANDOU TETSUO
IPC分类号： G01F1/32 , G01L1/16 , G01P5/00 , G01P5/01
摘要： PURPOSE:To provide a flow speed and rate meter, which is strong and durable, by hermetically fixing the force detecting section, which is operative to detect such an alternate force as is exerted upon a vortex generator made of a rigid material, to the vortex generator substantially into an integral structure by means of a sealer.

12. 发明专利

JPS53149360A FLOW VELOCITY AND FLOW RATE MEASURING APPARATUS 失效
公开(公告)号：JPS53149360A
公开(公告)日：1978-12-26
申请号：JP6447777
申请日：1977-06-01
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： KITAJIMA TAHEI , SAWAYAMA TAKEHIRO , AGA TOSHIO
IPC分类号： G01F1/32 , G01P5/00 , G01P5/01
摘要： PURPOSE:To increase S/N without receiving the effect of the main flow of measuring fluid and the effect of local disturbance of fluid by providing a stress detecting part on the side surface of a vortex generating body to which alternating forces act through generation of von Karman's vortex street and directly detecting the internal stress developed within the vortex generating body.

13. 发明专利

JPS58160813A VORTEX FLOW METER 失效
公开(公告)号：JPS58160813A
公开(公告)日：1983-09-24
申请号：JP4244682
申请日：1982-03-17
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： TAMURA HISASHI , SAWAYAMA TAKEHIRO , AGA TOSHIO
IPC分类号： G01F1/32 , G01P5/01
摘要： PURPOSE:To improve seismic resistance and an SN ratio with regards to a vortex flow meter which measures the velocity or flow rate of fluid by making use of Karman's vortex street by improving the mounting structure of a power receiving body. CONSTITUTION:When measuring fluid flows in a pipeline 1, alternating forces are acted in the floating direction of a vortex generating body 21 by Karman's vortex street. The alternating forces are drawn out to the outside as electric signals by two stress detecting parts 3a, 3b. One end 2b1 of a power receiving body 2b in this stage is inserted in the free end state into the pipe, and the mid- part 2b2 thereof is mounted to the pipeline 1 through a flexible part 22. The other end 2b3 is fixed to the pipeline 1; therefore, the sensitivity is improved, and since oscillating noises do not result in the synthesis of two kinds of oscillation modes differing in frequency characteristics, the restriction for the need of disposing the parts 3a, 3b in the positions where the amplitude ratio by the oscillations of the respective modes are equal is eliminated.

14. 发明专利

JPS5855817A VORTEX FLOWMETER 失效
公开(公告)号：JPS5855817A
公开(公告)日：1983-04-02
申请号：JP15594881
申请日：1981-09-30
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： TAMURA HISASHI , FUKAI YOSHIJI , ITOU ICHIZOU , YOSHIOKA KENICHI , SAWAYAMA TAKEHIRO , AGA TOSHIO , MIKURIYA KENTA
IPC分类号： G01F1/32 , G01P5/01
摘要： PURPOSE:To remove the influence of disturbing vibration and to improve an S/N ratio, by providing two sensors at two points where the noises due to the vibration of a vortex yielding body become approximately zero. CONSTITUTION:The vortex yielding body 13 yields K arm an vortex and receives buoyancy when fluid to be measured flows in the pipe which is not shown in the Figure. Piezoelectric sensors 14a and 14b are provided at the two points A and B where the noise charges on a stress distribution curve (b) due to the vibration of the vortex yielding body 13 become zero. The output charges q1 and q2 from the sensors 14a and 14b are applied to conversion amplifiers 21 and 22, converted into AC voltage e1 and e2, respectively, and added in an operator 23. Then, a voltage e3, wherein the influence of the noises due to the vibration of the vortex yielding body 13 is removed, is outputted.

15. 发明专利

JPS584967B2 失效
公开(公告)号：JPS584967B2
公开(公告)日：1983-01-28
申请号：JP6312577
申请日：1977-05-30
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： SAWAYAMA TAKEHIRO , ITO ICHIZO , AGA TOSHIO , ANDO TETSUO
IPC分类号： G01F1/32 , G01L1/16 , G01P5/00 , G01P5/01

16. 发明专利

JPS555536A AUDIO SENSOR 失效
公开(公告)号：JPS555536A
公开(公告)日：1980-01-16
申请号：JP7830978
申请日：1978-06-28
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： SAWAYAMA TAKEHIRO , ITOU ICHIZOU , AGA TOSHIO , ANDOU TETSUO
IPC分类号： H04R17/00 , G10K11/00
摘要： PURPOSE:To make stable the sensor without lowering the sensitivity even under high temperature atomosphere, by making bonding through the use of glass in attaching the piezoelectric elements being the ultrasonic wave transmitting and receiving elements on the ultrasonic wave radiation plane or audio detection plane. CONSTITUTION:At the bottom surface of the cylindrical vessel 1 having the bottom of metal, the piezoelectric element 2 of disc shape of LiNbO3 is bonded by using the bond 3 consisting of glass material while drawing out the lead 21 externally. After that, the rear side of the vessel 1 is fixed on the transmission and reception plane 4 with weldering. By constituting the sensor like this and exciting the piezoelectric element 2 through the use of transmitter provided externally, this excitation is radiated externally through the bonded body 3, vessel 2 and transmission plane 4. In this case, since glass is used for the bonded body 3, the performance of transmission is made excellent, no peeling is caused, and lowering of insulation due to moisture is not caused.

17. 发明专利

JPS54161968A PRODUCTION OF FLOW VELOCITY AND FLOW RATE MEASURING DEVICE 失效
公开(公告)号：JPS54161968A
公开(公告)日：1979-12-22
申请号：JP7061278
申请日：1978-06-12
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： SAWAYAMA TAKEHIRO , ITOU ICHIZOU , AGA TOSHIO , ANDOU TETSUO
IPC分类号： G01F1/32 , G01D5/00
摘要： PURPOSE:To reduce the number of fabricating steps, assembling steps and production steps and obtain the flow velocity and flow rate measuring device which is simple, easy to manufacture, inexpensive and robust by integrally making its case portion, vortex generating body portion and tubular body portion. CONSTITUTION:A vortex generating body 2 of trapezoidal column form is held inserted square to the tubular body 1 on a cylinder. A force detecting part 3 consists of a detecting sensor part 31 and a cylindrical case 33 having a sealing body 32 and bottom, and its one end is connected to the vortex generating body 2 and the other end to the tubular body 1. The tubular body 1, vortex generating body 2 and case 33 are integrally made by precision casting. A piezoelectric part 31 is inserted into this case 33 and glass 32 is injected into the case 33 so that the piezoelectric element part 31 is insulated from the case 33. After the glass 32 is melted in an electric oven 4, it is cooled to seal and fix the piezoelectric element part 31 in the case 33.

18. 发明专利

JPS5389764A EDDY CURRENT FLOW METER 失效
公开(公告)号：JPS5389764A
公开(公告)日：1978-08-07
申请号：JP464877
申请日：1977-01-19
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： ITOU ICHIZOU , AGA TOSHIO , SAWAYAMA TAKEHIRO , SHIOMI KAZUHIRO
IPC分类号： G01F1/32 , G01P5/00 , G01P5/01
摘要： PURPOSE:To maintain the stability of von Karman's vortex streets and make possible measurement of accurate flow rates withina wide velocity range by forming the meter to the shape of a vortex generating body of not giving large pressure loss to the boundary layers near pipe walls.

19. 发明专利

JPS5127362A 失效
公开(公告)号：JPS5127362A
公开(公告)日：1976-03-06
申请号：JP10025474
申请日：1974-08-30
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： OOGAWARA TOSHINORI , SAWAYAMA TAKEHIRO , KITAMI ATSUHIRO
IPC分类号： G01F1/32 , G01F15/00 , G01F15/02

20. 发明专利

JPS5829859B2 失效
公开(公告)号：JPS5829859B2
公开(公告)日：1983-06-25
申请号：JP12517877
申请日：1977-10-20
申请人： YOKOGAWA ELECTRIC WORKS LTD
发明人： SAWAYAMA TAKEHIRO , ITO ICHIZO , AGA TOSHIO , ANDO TETSUO , OGAWA MASAHIRO
IPC分类号： G01L1/16

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