DE1919005A1 - Anzeigeschaltung mit kapazitiver Sonde - Google Patents

Anzeigeschaltung mit kapazitiver Sonde

Info

Publication number
DE1919005A1
DE1919005A1 DE19691919005 DE1919005A DE1919005A1 DE 1919005 A1 DE1919005 A1 DE 1919005A1 DE 19691919005 DE19691919005 DE 19691919005 DE 1919005 A DE1919005 A DE 1919005A DE 1919005 A1 DE1919005 A1 DE 1919005A1
Authority
DE
Germany
Prior art keywords
transistor
circuit
resistor
bridge
line
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
DE19691919005
Other languages
German (de)
English (en)
Inventor
Mcmanus Ian David
Malcolm Williams
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of DE1919005A1 publication Critical patent/DE1919005A1/de
Pending legal-status Critical Current

Links

Classifications

    • 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)
  • Measurement Of Resistance Or Impedance (AREA)
DE19691919005 1968-04-16 1969-04-15 Anzeigeschaltung mit kapazitiver Sonde Pending DE1919005A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1786368 1968-04-16

Publications (1)

Publication Number Publication Date
DE1919005A1 true DE1919005A1 (de) 1970-04-16

Family

ID=10102529

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19691919005 Pending DE1919005A1 (de) 1968-04-16 1969-04-15 Anzeigeschaltung mit kapazitiver Sonde

Country Status (2)

Country Link
DE (1) DE1919005A1 (cs)
FR (1) FR2006296A1 (cs)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4086528A (en) * 1975-09-17 1978-04-25 United Kingdom Atomic Energy Authority Capacitive transducers
AU504091B2 (en) * 1976-07-06 1979-10-04 Sundstrand Data Control, Inc. Accelerometer

Also Published As

Publication number Publication date
FR2006296A1 (cs) 1969-12-26

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