GB824786A - Improvements in or relating to piezo-electric elements and electric circuits using such elements - Google Patents

Improvements in or relating to piezo-electric elements and electric circuits using such elements

Info

Publication number
GB824786A
GB824786A GB3512856A GB3512856A GB824786A GB 824786 A GB824786 A GB 824786A GB 3512856 A GB3512856 A GB 3512856A GB 3512856 A GB3512856 A GB 3512856A GB 824786 A GB824786 A GB 824786A
Authority
GB
United Kingdom
Prior art keywords
electric
silver
crystal
elements
heater
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
GB3512856A
Other languages
English (en)
Inventor
Arthur Edward Harrold
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.)
The General Electric Company PLC
Original Assignee
The General Electric Company PLC
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
Priority to DENDAT1065473D priority Critical patent/DE1065473B/de
Application filed by The General Electric Company PLC filed Critical The General Electric Company PLC
Priority to GB3512856A priority patent/GB824786A/en
Publication of GB824786A publication Critical patent/GB824786A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/04—Constructional details for maintaining temperature constant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/32—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using change of resonant frequency of a crystal
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
    • G05D23/2401—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor using a heating element as a sensing element
    • 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
    • H03B5/323—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator the resonator having more than two terminals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Heating Bodies (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
GB3512856A 1956-11-16 1956-11-16 Improvements in or relating to piezo-electric elements and electric circuits using such elements Expired GB824786A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DENDAT1065473D DE1065473B (enExample) 1956-11-16
GB3512856A GB824786A (en) 1956-11-16 1956-11-16 Improvements in or relating to piezo-electric elements and electric circuits using such elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3512856A GB824786A (en) 1956-11-16 1956-11-16 Improvements in or relating to piezo-electric elements and electric circuits using such elements

Publications (1)

Publication Number Publication Date
GB824786A true GB824786A (en) 1959-12-02

Family

ID=10374162

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3512856A Expired GB824786A (en) 1956-11-16 1956-11-16 Improvements in or relating to piezo-electric elements and electric circuits using such elements

Country Status (2)

Country Link
DE (1) DE1065473B (enExample)
GB (1) GB824786A (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201621A (en) * 1963-03-18 1965-08-17 Milner Consuelo Stokes Thermally stabilized crystal units
US3531663A (en) * 1965-07-29 1970-09-29 Exxon Research Engineering Co Integral heater piezoelectric devices
FR2538633A1 (fr) * 1982-12-27 1984-06-29 France Etat Oscillateur haute frequence a defaut d'isochronisme compense

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3201621A (en) * 1963-03-18 1965-08-17 Milner Consuelo Stokes Thermally stabilized crystal units
US3531663A (en) * 1965-07-29 1970-09-29 Exxon Research Engineering Co Integral heater piezoelectric devices
FR2538633A1 (fr) * 1982-12-27 1984-06-29 France Etat Oscillateur haute frequence a defaut d'isochronisme compense
EP0113264A1 (fr) * 1982-12-27 1984-07-11 ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement Oscillateur haute fréquence à défaut d'isochronisme compensé

Also Published As

Publication number Publication date
DE1065473B (enExample) 1959-09-17

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