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JPS4911371A - - Google Patents

Info

Publication number
JPS4911371A
JPS4911371A JP47054472A JP5447272A JPS4911371A JP S4911371 A JPS4911371 A JP S4911371A JP 47054472 A JP47054472 A JP 47054472A JP 5447272 A JP5447272 A JP 5447272A JP S4911371 A JPS4911371 A JP S4911371A
Authority
JP
Japan
Legal status (The legal status 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 status listed.)
Pending
Application number
JP47054472A
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 filed Critical
Priority to JP47054472A priority Critical patent/JPS4911371A/ja
Priority to US00336499A priority patent/US3846700A/en
Publication of JPS4911371A publication Critical patent/JPS4911371A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
    • G01R5/28—Electrostatic instruments

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
JP47054472A 1972-05-31 1972-05-31 Pending JPS4911371A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP47054472A JPS4911371A (ja) 1972-05-31 1972-05-31
US00336499A US3846700A (en) 1972-05-31 1973-02-28 Electrostatic field measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47054472A JPS4911371A (ja) 1972-05-31 1972-05-31

Publications (1)

Publication Number Publication Date
JPS4911371A true JPS4911371A (ja) 1974-01-31

Family

ID=12971602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47054472A Pending JPS4911371A (ja) 1972-05-31 1972-05-31

Country Status (2)

Country Link
US (1) US3846700A (ja)
JP (1) JPS4911371A (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685259A2 (en) 1994-05-31 1995-12-06 Nippon Shokubai Co., Ltd. Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalyst
US7329628B2 (en) 2003-03-26 2008-02-12 Lg Chem, Ltd. Method for preparing catalysts for partial oxidation of propylene and iso-butylene
US7429678B2 (en) 2003-02-27 2008-09-30 Nippon Shokubai Co., Ltd. Composite-oxide catalyst and process for production of acrylic acid using said catalyst
US7850928B2 (en) 2001-01-25 2010-12-14 Nippon Shokubai Co., Ltd. Fixed-bed shell-and-tube reactor and its usage

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5226874A (en) * 1975-08-25 1977-02-28 Giichiro Kato Rotary type electric field intensity measuring apparatus using a stati onary electrode plate provided with holes
US4095221A (en) * 1976-03-29 1978-06-13 Slocum Jr Chester D Electrical storm forecast system
FR2432719A1 (fr) * 1977-12-02 1980-02-29 Commissariat Energie Atomique Dispositif de detection d'orage
US4270090A (en) * 1978-04-24 1981-05-26 Williams Bruce T D.C. Electrostatic voltage follower having ion-coupled probe
US4529940A (en) * 1982-12-13 1985-07-16 The Simco Company, Inc. Panoramic electrostatic field sensor
FR2564420B1 (fr) * 1984-05-16 1986-10-10 Onera (Off Nat Aerospatiale) Procede et dispositif pour annuler le potentiel electrostatique d'un helicoptere par rapport a la terre
FR2588089B1 (fr) * 1985-10-01 1987-12-24 Metravib Sa Capteur de champ electrique
US4839581A (en) * 1986-11-13 1989-06-13 Peterson Jr Thomas F Absolute electrical potential measuring apparatus and method
US5315232A (en) * 1991-01-03 1994-05-24 Stewart Michael F Electric field measuring system
ES2026828B1 (es) * 1991-03-27 1994-01-16 Llucia Noguera Procedimiento y aparato detector de tormentas perfeccionado.
US6984971B1 (en) 2001-03-14 2006-01-10 The Board Of Regents University Of Oklahoma Low power, low maintenance, electric-field meter
US7109698B2 (en) * 2001-03-14 2006-09-19 The Board Of Regents, University Of Oklahoma Electric-field meter having current compensation
US6608483B1 (en) 2001-11-13 2003-08-19 John P. Hill Quadrature differential charge commutation sensor enabling wide bandwith field mills and other electrostatic field measuring devices
US8536879B2 (en) * 2008-06-02 2013-09-17 The Regents Of The University Of Michigan Rotating electric-field sensor
GB201016222D0 (en) * 2010-09-27 2010-11-10 Natural Enviromental Res Council Aerosol detection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815483A (en) * 1957-12-03 Electric field detection
US2454630A (en) * 1945-01-08 1948-11-23 United Air Lines Inc Method and apparatus for indicating potential gradients
US3344344A (en) * 1964-10-01 1967-09-26 Jr Nathaniel B Wales Electric charge responsive device
US3611127A (en) * 1968-09-16 1971-10-05 Robert E Vosteen Electrostatic potential and field measurement apparatus having a capacitor detector with feedback to drive the capacitor detector to the potential being measured
US3667036A (en) * 1970-01-23 1972-05-30 Xerox Corp Electrometer amplifier circuits

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0685259A2 (en) 1994-05-31 1995-12-06 Nippon Shokubai Co., Ltd. Catalyst for production of acrylic acid and method for production of acrylic acid by the use of the catalyst
US7850928B2 (en) 2001-01-25 2010-12-14 Nippon Shokubai Co., Ltd. Fixed-bed shell-and-tube reactor and its usage
US7429678B2 (en) 2003-02-27 2008-09-30 Nippon Shokubai Co., Ltd. Composite-oxide catalyst and process for production of acrylic acid using said catalyst
US7329628B2 (en) 2003-03-26 2008-02-12 Lg Chem, Ltd. Method for preparing catalysts for partial oxidation of propylene and iso-butylene

Also Published As

Publication number Publication date
US3846700A (en) 1974-11-05

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