GB1328889A - Analog conversion apparatus - Google Patents

Analog conversion apparatus

Info

Publication number
GB1328889A
GB1328889A GB5766972A GB5766971A GB1328889A GB 1328889 A GB1328889 A GB 1328889A GB 5766972 A GB5766972 A GB 5766972A GB 5766971 A GB5766971 A GB 5766971A GB 1328889 A GB1328889 A GB 1328889A
Authority
GB
United Kingdom
Prior art keywords
frequency
filter
input
pulse train
proportional
Prior art date
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.)
Expired
Application number
GB5766972A
Other languages
English (en)
Inventor
C E Miller
G L Schlatter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
ITT Industries Inc
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 Deutsche ITT Industries GmbH, ITT Industries Inc filed Critical Deutsche ITT Industries GmbH
Publication of GB1328889A publication Critical patent/GB1328889A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • G06G7/623—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
    • G01N2009/008—Schlatter vibrating vane type

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
GB5766972A 1970-08-20 1971-08-13 Analog conversion apparatus Expired GB1328889A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US6537170A 1970-08-20 1970-08-20

Publications (1)

Publication Number Publication Date
GB1328889A true GB1328889A (en) 1973-08-30

Family

ID=22062246

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5766972A Expired GB1328889A (en) 1970-08-20 1971-08-13 Analog conversion apparatus
GB3811171A Expired GB1328888A (en) 1970-08-20 1971-08-13 Densitometer

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3811171A Expired GB1328888A (en) 1970-08-20 1971-08-13 Densitometer

Country Status (8)

Country Link
US (1) US3677067A (enExample)
JP (1) JPS5241672B1 (enExample)
CA (1) CA957865A (enExample)
DE (1) DE2141397C3 (enExample)
FR (1) FR2104597A5 (enExample)
GB (2) GB1328889A (enExample)
NL (1) NL7111240A (enExample)
SE (4) SE386272B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2335096A (en) * 1998-03-05 1999-09-08 Nec Technologies Voltage controlled band pass filter

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808875A (en) * 1972-11-24 1974-05-07 Itt Densitometer and probe therefor
US3805361A (en) * 1973-02-15 1974-04-23 Itt Method of making a vibration densitometer
US3864972A (en) * 1973-03-12 1975-02-11 Fischer & Porter Co Signal recovery system for vortex type flowmeter
US3878710A (en) * 1973-10-04 1975-04-22 Itt Densitometer
US3956922A (en) * 1974-12-09 1976-05-18 International Telephone And Telegraph Corporation Densitometer probe shield and well
US4074571A (en) * 1974-08-01 1978-02-21 Fischer & Porter Co. Obstacle assembly for vortex type flowmeter
US3926035A (en) * 1974-11-29 1975-12-16 Itt Gravitometer
US3967490A (en) * 1975-06-27 1976-07-06 International Telephone And Telegraph Corporation Vibration densitometer
US3992939A (en) * 1976-02-11 1976-11-23 International Telephone And Telegraph Corporation Apparatus for producing a mass flow rate signal with or without a density signal
US4084425A (en) * 1977-05-11 1978-04-18 International Telephone And Telegraph Corporation Vibration densitometer
US4215566A (en) * 1979-04-30 1980-08-05 International Telephone And Telegraph Corporation Densitometer with voltage driver
US4491009A (en) * 1983-06-10 1985-01-01 Micro Motion, Inc. Electronic circuit for vibrating tube densimeter
US4802360A (en) * 1987-03-27 1989-02-07 Simmonds Precision Products, Inc. Vibrating spool densitometer immune to cabling effects
GB8720355D0 (en) * 1987-08-28 1987-10-07 Emi Plc Thorn Measuring fluid density
US7871826B2 (en) * 2007-09-26 2011-01-18 Air Products And Chemicals, Inc. Method for determining carbon content of a hydrocarbon-containing mixture
AU2009346364B9 (en) 2009-05-20 2013-01-24 Halliburton Energy Services, Inc. Determining fluid density
US10107784B2 (en) 2014-12-29 2018-10-23 Concentric Meter Corporation Electromagnetic transducer
US10126266B2 (en) 2014-12-29 2018-11-13 Concentric Meter Corporation Fluid parameter sensor and meter
EP3215812B1 (en) 2014-12-29 2020-10-07 Concentric Meter Corporation Fluid parameter sensor and meter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560263A (en) * 1946-05-09 1951-07-10 Wright Aeronautical Corp Fluid line connection
NL111187C (enExample) * 1957-12-26
SU129357A1 (ru) * 1959-06-27 1959-11-30 Ю.И. Иориш Прибор дл измерени расхода потока жидкости
FR1287559A (fr) * 1961-02-01 1962-03-16 Rochar Electronique Procédé et dispositif de mesure de la densité d'un fluide
US3151284A (en) * 1961-03-20 1964-09-29 Cavitron Ultrasonics Inc Feedback compensated magnetostrictive vibration device
US3282084A (en) * 1963-03-05 1966-11-01 Automation Prod Apparatus for determining physical properties of materials
US3254284A (en) * 1963-05-10 1966-05-31 Giannini Controls Corp Ultrasonic vibration generators
US3426593A (en) * 1965-12-23 1969-02-11 Robert B Jacobs Vibrating transducer for flow and related measurements
US3349604A (en) * 1966-07-22 1967-10-31 Automation Prod Apparatus for determining physical properties of materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2335096A (en) * 1998-03-05 1999-09-08 Nec Technologies Voltage controlled band pass filter
GB2335096B (en) * 1998-03-05 2002-07-31 Nec Technologies Voltage controlled band pass filters

Also Published As

Publication number Publication date
SE7410861L (sv) 1974-08-28
SE386272B (sv) 1976-08-02
DE2141397C3 (de) 1982-01-07
NL7111240A (enExample) 1972-02-22
SE7410862L (enExample) 1974-08-28
SE376080B (enExample) 1975-05-05
JPS5241672B1 (enExample) 1977-10-19
FR2104597A5 (enExample) 1972-04-14
SE400653B (sv) 1978-04-03
GB1328888A (en) 1973-09-05
US3677067A (en) 1972-07-18
CA957865A (en) 1974-11-19
DE2141397B2 (de) 1981-03-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee