DE2211971A1 - Betriebsschaltung für ein Vibrationsdensitometer - Google Patents

Betriebsschaltung für ein Vibrationsdensitometer

Info

Publication number
DE2211971A1
DE2211971A1 DE19722211971 DE2211971A DE2211971A1 DE 2211971 A1 DE2211971 A1 DE 2211971A1 DE 19722211971 DE19722211971 DE 19722211971 DE 2211971 A DE2211971 A DE 2211971A DE 2211971 A1 DE2211971 A1 DE 2211971A1
Authority
DE
Germany
Prior art keywords
output
circuit
input
subcircuit
pulses
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.)
Pending
Application number
DE19722211971
Other languages
German (de)
English (en)
Inventor
Gerald Lance Boulder CoI. Schlauer (V.StA.)
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
Original Assignee
Deutsche ITT Industries GmbH
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 filed Critical Deutsche ITT Industries GmbH
Publication of DE2211971A1 publication Critical patent/DE2211971A1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/04—Shaping pulses by increasing duration; by decreasing duration
    • H03K5/05—Shaping pulses by increasing duration; by decreasing duration by the use of clock signals or other time reference signals
    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/16—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division
    • G06G7/161—Arrangements for performing computing operations, e.g. operational amplifiers for multiplication or division with pulse modulation, e.g. modulation of amplitude, width, frequency, phase or form
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/20—Arrangements for performing computing operations, e.g. operational amplifiers for evaluating powers, roots, polynomes, mean square values, standard deviation
    • 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)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Nonlinear Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Manipulation Of Pulses (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Analogue/Digital Conversion (AREA)
  • Feedback Control In General (AREA)
DE19722211971 1971-03-15 1972-03-13 Betriebsschaltung für ein Vibrationsdensitometer Pending DE2211971A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12407071A 1971-03-15 1971-03-15

Publications (1)

Publication Number Publication Date
DE2211971A1 true DE2211971A1 (de) 1972-09-21

Family

ID=22412563

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722211971 Pending DE2211971A1 (de) 1971-03-15 1972-03-13 Betriebsschaltung für ein Vibrationsdensitometer

Country Status (10)

Country Link
US (1) US3735633A (enExample)
JP (1) JPS5242065B1 (enExample)
BE (1) BE780670A (enExample)
CH (1) CH554539A (enExample)
DE (1) DE2211971A1 (enExample)
FR (1) FR2130249B1 (enExample)
GB (2) GB1383953A (enExample)
IT (1) IT950143B (enExample)
NL (1) NL7203422A (enExample)
SE (1) SE368623B (enExample)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE268353C (enExample) * 1947-09-02
SU129357A1 (ru) * 1959-06-27 1959-11-30 Ю.И. Иориш Прибор дл измерени расхода потока жидкости
US3117440A (en) * 1960-09-12 1964-01-14 Lockheed Aircraft Corp Densitometer
FR1287559A (fr) * 1961-02-01 1962-03-16 Rochar Electronique Procédé et dispositif de mesure de la densité d'un fluide
US3426593A (en) * 1965-12-23 1969-02-11 Robert B Jacobs Vibrating transducer for flow and related measurements
GB1158790A (en) * 1965-12-29 1969-07-16 Solartron Electronic Group Improvements in Fluid Density Meters
US3307408A (en) * 1966-08-10 1967-03-07 Int Research & Dev Co Ltd Synchronous filter apparatus in which pass-band automatically tracks signal, useful for vibration analysis
US3523446A (en) * 1967-03-21 1970-08-11 Kratky Otto Dr Dr E H Device for density determination
GB1266289A (enExample) * 1970-06-10 1972-03-08

Also Published As

Publication number Publication date
IT950143B (it) 1973-06-20
CH554539A (de) 1974-09-30
GB1383951A (en) 1974-02-12
SE368623B (enExample) 1974-07-08
JPS5242065B1 (enExample) 1977-10-21
BE780670A (fr) 1972-09-15
FR2130249A1 (enExample) 1972-11-03
GB1383953A (en) 1974-02-12
FR2130249B1 (enExample) 1976-10-29
NL7203422A (enExample) 1972-09-19
US3735633A (en) 1973-05-29

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Legal Events

Date Code Title Description
OD Request for examination
OHN Withdrawal