Classifications

• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
  • H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
  • H03D3/02—Demodulation of angle-, frequency- or phase- modulated oscillations by detecting phase difference between two signals obtained from input signal
  • H03D3/24—Modifications of demodulators to reject or remove amplitude variations by means of locked-in oscillator circuits
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
  • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
  • G01R19/04—Measuring peak values or amplitude or envelope of AC or of pulses
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D1/00—Measuring arrangements giving results other than momentary value of variable, of general application
  • G01D1/12—Measuring arrangements giving results other than momentary value of variable, of general application giving a maximum or minimum of a value
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
  • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
  • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
  • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
  • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
  • G01D5/22—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature differentially influencing two coils
  • G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils
• • H—ELECTRICITY
  • H03—ELECTRONIC CIRCUITRY
  • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
  • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
  • H03D2200/0041—Functional aspects of demodulators
  • H03D2200/006—Signal sampling

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Transmission And Conversion Of Sensor Element Output (AREA)
• Measurement Of Current Or Voltage (AREA)
• Dc Digital Transmission (AREA)
• Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
• Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22330823

Family Applications (1)

Country Status (11)

Families Citing this family (9)

Family Cites Families (6)

• 1993
  • 1993-08-23 US US08/110,020 patent/US5399964A/en not_active Expired - Lifetime
• 1994
  • 1994-06-27 CA CA002126843A patent/CA2126843C/en not_active Expired - Fee Related
  • 1994-07-14 NO NO942643A patent/NO942643L/no unknown
  • 1994-07-21 DE DE69413164T patent/DE69413164T2/de not_active Expired - Fee Related
  • 1994-07-21 EP EP94305401A patent/EP0640811B1/en not_active Expired - Lifetime
  • 1994-07-21 ES ES94305401T patent/ES2122173T3/es not_active Expired - Lifetime
  • 1994-08-19 AU AU70383/94A patent/AU674591B2/en not_active Ceased
  • 1994-08-22 JP JP6218336A patent/JPH0786837A/ja not_active Withdrawn
  • 1994-08-22 CN CN94115793A patent/CN1118507A/zh active Pending
  • 1994-08-23 BR BR9403318A patent/BR9403318A/pt not_active Application Discontinuation
  • 1994-08-23 KR KR1019940020762A patent/KR950007267A/ko not_active Abandoned

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