JPS35682B1 - - Google Patents

Info

Publication number
JPS35682B1
JPS35682B1 JP839356A JP839356A JPS35682B1 JP S35682 B1 JPS35682 B1 JP S35682B1 JP 839356 A JP839356 A JP 839356A JP 839356 A JP839356 A JP 839356A JP S35682 B1 JPS35682 B1 JP S35682B1
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
JP839356A
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
Publication of JPS35682B1 publication Critical patent/JPS35682B1/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/266—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors measuring circuits therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
JP839356A 1955-04-01 1956-03-30 Pending JPS35682B1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA620576T
US498681A US2932970A (en) 1955-04-01 1955-04-01 Capacitance bridge oscillator

Publications (1)

Publication Number Publication Date
JPS35682B1 true JPS35682B1 (ja) 1960-02-02

Family

ID=75300180

Family Applications (1)

Application Number Title Priority Date Filing Date
JP839356A Pending JPS35682B1 (ja) 1955-04-01 1956-03-30

Country Status (3)

Country Link
US (1) US2932970A (ja)
JP (1) JPS35682B1 (ja)
CA (1) CA620576A (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048775A (en) * 1958-01-10 1962-08-07 Wayne Kerr Lab Ltd Apparatus for measuring small distances
US3031617A (en) * 1958-08-13 1962-04-24 Donald R Paquette Linear capacitive probe detecting device
US3419801A (en) * 1965-03-12 1968-12-31 Simmonds Precision Products Capacitance-type measuring apparatus for fluids in a super-critical state including a diode linearization network
US4222267A (en) * 1978-02-10 1980-09-16 Keystone International, Inc. Material level detector circuit
US4410850A (en) * 1981-10-16 1983-10-18 Bell Telephone Laboratories, Incorporated Water-compensated open fault locator
US4515015A (en) * 1983-02-16 1985-05-07 Magnetrol International, Incorporated Capacitance level sensor for use with viscous, electrically conductive materials
US4589281A (en) * 1984-09-20 1986-05-20 Keystone International, Inc. Material level detector and control
NL9500217A (nl) * 1995-02-06 1996-09-02 Meridian Instr Bv Capacitieve meetinrichting.
US8054137B2 (en) * 2009-06-09 2011-11-08 Panasonic Corporation Method and apparatus for integrating a FLL loop filter in polar transmitters

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1694237A (en) * 1926-02-06 1928-12-04 Gen Electric Control system
US2290771A (en) * 1939-04-25 1942-07-21 Rca Corp Relay system
US2432669A (en) * 1942-10-24 1947-12-16 Honeywell Regulator Co Ice indicator
US2375084A (en) * 1943-06-23 1945-05-01 Gen Aniline & Film Corp Liquid level measuring apparatus
US2547780A (en) * 1944-05-16 1951-04-03 Hartford Nat Bank & Trust Co Capacitative pickup for pressure indicators
US2603779A (en) * 1945-12-27 1952-07-15 Sperry Corp Radio guidance system
US2599583A (en) * 1946-11-15 1952-06-10 Petrolite Corp Method and apparatus for testing suspensions
US2511562A (en) * 1947-03-25 1950-06-13 Sylvania Electric Prod Linearity correction for diodes
US2570218A (en) * 1947-06-19 1951-10-09 Michael J Draganjac Remote-indicating fuel gauge

Also Published As

Publication number Publication date
US2932970A (en) 1960-04-19
CA620576A (en) 1961-05-23

Similar Documents

Publication Publication Date Title
JPS35682B1 (ja)
AT198143B (ja)
AT195882B (ja)
AT198671B (ja)
BE546589A (ja)
AT197696B (ja)
AT198478B (ja)
AT194860B (ja)
AT196338B (ja)
AT195858B (ja)
AT196165B (ja)
AT196279B (ja)
AT197113B (ja)
AT196336B (ja)
AT196795B (ja)
AT195161B (ja)
AT197200B (ja)
AT196484B (ja)
AT196487B (ja)
AT196488B (ja)
AT196599B (ja)
AT196153B (ja)
AT194962B (ja)
AT195039B (ja)
AT198439B (ja)