FI68318C - Tryckmaetanordning av vibrationstraodtypen - Google Patents

Tryckmaetanordning av vibrationstraodtypen Download PDF

Info

Publication number
FI68318C
FI68318C FI782846A FI782846A FI68318C FI 68318 C FI68318 C FI 68318C FI 782846 A FI782846 A FI 782846A FI 782846 A FI782846 A FI 782846A FI 68318 C FI68318 C FI 68318C
Authority
FI
Finland
Prior art keywords
trees
sensor according
spring
wire
force
Prior art date
Application number
FI782846A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI68318B (fi
FI782846A (fi
Inventor
Everett O Olsen
James R Lacroix
Hoel L Bowditch
Original Assignee
Foxboro Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Foxboro Co filed Critical Foxboro Co
Publication of FI782846A publication Critical patent/FI782846A/fi
Publication of FI68318B publication Critical patent/FI68318B/fi
Application granted granted Critical
Publication of FI68318C publication Critical patent/FI68318C/fi

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0001—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means
    • G01L9/0008—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations
    • G01L9/0013—Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means using vibrations of a string
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
    • G01L13/02—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements
    • G01L13/025—Devices or apparatus for measuring differences of two or more fluid pressure values using elastically-deformable members or pistons as sensing elements using diaphragms

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Materials For Medical Uses (AREA)
FI782846A 1977-09-19 1978-09-18 Tryckmaetanordning av vibrationstraodtypen FI68318C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83448177 1977-09-19
US05/834,481 US4165651A (en) 1977-09-19 1977-09-19 Pressure measuring apparatus using vibratable wire

Publications (3)

Publication Number Publication Date
FI782846A FI782846A (fi) 1979-03-20
FI68318B FI68318B (fi) 1985-04-30
FI68318C true FI68318C (fi) 1985-08-12

Family

ID=25267039

Family Applications (1)

Application Number Title Priority Date Filing Date
FI782846A FI68318C (fi) 1977-09-19 1978-09-18 Tryckmaetanordning av vibrationstraodtypen

Country Status (13)

Country Link
US (1) US4165651A (it)
JP (1) JPS5853301B2 (it)
AU (1) AU518094B2 (it)
BR (1) BR7806003A (it)
DE (1) DE2840286C2 (it)
FI (1) FI68318C (it)
FR (1) FR2403551A1 (it)
GB (1) GB2004649B (it)
IT (1) IT1105963B (it)
MX (1) MX147714A (it)
NL (1) NL7809530A (it)
NO (1) NO152713C (it)
SE (1) SE437888B (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277973A (en) * 1978-12-04 1981-07-14 Ivor Hawkes Vibratory wire strain gage
US4255973A (en) * 1979-11-07 1981-03-17 The United States Of America As Represented By The United States Department Of Energy Digital pressure transducer for use at high temperatures
US4372164A (en) * 1980-06-02 1983-02-08 The Foxboro Company Industrial process control instrument employing a resonant sensor
US4471660A (en) * 1982-02-26 1984-09-18 The Foxboro Company Process control instrument using a pneumatically driven resonant element
EP0087612A3 (en) * 1982-02-26 1984-04-11 The Foxboro Company Pressure-to-frequency transducer
US4708010A (en) * 1984-10-17 1987-11-24 The Foxboro Company Apparatus and method for calibrating span of pressure measuring instruments
US4638656A (en) * 1984-10-17 1987-01-27 The Foxboro Company Apparatus and method for calibrating span of pressure measuring instruments
DE59103069D1 (de) * 1990-01-18 1994-11-03 Wirth Gallo Messtechnik Differenzdruckmesser.
JP4757536B2 (ja) * 2005-05-17 2011-08-24 ローレル精機株式会社 包装硬貨搬送装置
US9048521B2 (en) 2011-03-24 2015-06-02 Etegent Technologies, Ltd. Broadband waveguide
US9182306B2 (en) 2011-06-22 2015-11-10 Etegent Technologies, Ltd. Environmental sensor with tensioned wire exhibiting varying transmission characteristics in response to environmental conditions
CN103017970B (zh) * 2012-11-30 2014-10-29 合肥工业大学 平衡式水压力传感器及其测试方法
WO2015066494A2 (en) 2013-11-01 2015-05-07 Etegent Technologies Ltd. Broadband waveguide
WO2015099884A2 (en) 2013-11-01 2015-07-02 Etegent Technologies Ltd. Composite active waveguide temperature sensor for harsh environments
WO2015157488A1 (en) 2014-04-09 2015-10-15 Etegent Technologies Ltd. Active waveguide excitation and compensation
US11686627B2 (en) 2017-04-10 2023-06-27 Etegent Technologies Ltd. Distributed active mechanical waveguide sensor driven at multiple frequencies and including frequency-dependent reflectors
CN113091883B (zh) * 2021-04-02 2022-05-27 厦门邦创信息技术有限公司 一种拉力保持结构、拉力保持装置及振弦式设备

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR985978A (fr) * 1943-11-23 1951-07-25 Capsule manométrique acoustique
US2455021A (en) * 1944-01-29 1948-11-30 Interval Instr Inc Pressure meter
FR1206846A (fr) * 1957-05-20 1960-02-11 Borg Warner Transducteur de différence de pression
US3005135A (en) * 1958-06-04 1961-10-17 Borg Warner Servomotor control systems employing transducers
US3010322A (en) * 1959-01-22 1961-11-28 Borg Warner Pressure responsive devices and systems therefor
US3140613A (en) * 1960-07-26 1964-07-14 Hitachi Ltd Differential pressure transmitters
US3393565A (en) * 1965-04-05 1968-07-23 Klee Gerhard Pressure transducer
DE1498205B2 (de) * 1965-09-16 1970-06-11 Siemens AG, 1000 Berlin u. 8000 München Mit einer Schutz- oder Dämpfungsflüs-' sigkeit gefüllter überlastsicherer Differenzdruck-Meßumformer
GB1288378A (it) * 1968-11-18 1972-09-06
US3990309A (en) * 1975-09-08 1976-11-09 Htl Industries, Inc. Temperature compensated pressure limited gauge

Also Published As

Publication number Publication date
FI68318B (fi) 1985-04-30
NL7809530A (nl) 1979-03-21
FR2403551B1 (it) 1983-11-18
FR2403551A1 (fr) 1979-04-13
IT1105963B (it) 1985-11-11
NO152713B (no) 1985-07-29
NO152713C (no) 1985-11-06
IT7851139A0 (it) 1978-09-19
JPS5853301B2 (ja) 1983-11-28
SE437888B (sv) 1985-03-18
AU3949778A (en) 1980-03-06
AU518094B2 (en) 1981-09-10
MX147714A (es) 1983-01-06
JPS5456880A (en) 1979-05-08
DE2840286A1 (de) 1979-03-29
BR7806003A (pt) 1979-04-24
DE2840286C2 (de) 1985-05-15
SE7809760L (sv) 1979-03-20
GB2004649B (en) 1982-03-10
FI782846A (fi) 1979-03-20
US4165651A (en) 1979-08-28
GB2004649A (en) 1979-04-04
NO783120L (no) 1979-03-20

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Legal Events

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MM Patent lapsed

Owner name: THE FOXBORO COMPANY