DE2357381A1 - Messgeraet mit hoher empfindlichkeit zur lagebestimmung - Google Patents
Messgeraet mit hoher empfindlichkeit zur lagebestimmungInfo
- Publication number
- DE2357381A1 DE2357381A1 DE19732357381 DE2357381A DE2357381A1 DE 2357381 A1 DE2357381 A1 DE 2357381A1 DE 19732357381 DE19732357381 DE 19732357381 DE 2357381 A DE2357381 A DE 2357381A DE 2357381 A1 DE2357381 A1 DE 2357381A1
- Authority
- DE
- Germany
- Prior art keywords
- notch
- circuit
- measuring device
- signal
- voltage
- 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.)
- Withdrawn
Links
- 230000035945 sensitivity Effects 0.000 title claims description 5
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 4
- 230000005669 field effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000005415 magnetization Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims 1
- 239000003990 capacitor Substances 0.000 description 4
- 239000002923 metal particle Substances 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
- H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
- H03G3/3015—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable using diodes or transistors
-
- 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
- G01D5/2006—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 by influencing the self-induction of one or more coils
- G01D5/202—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 by influencing the self-induction of one or more coils by movable a non-ferromagnetic conductive element
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
- G01V3/102—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Multimedia (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7241570A FR2250424A5 (enrdf_load_stackoverflow) | 1972-11-17 | 1972-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2357381A1 true DE2357381A1 (de) | 1974-05-22 |
Family
ID=9107550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732357381 Withdrawn DE2357381A1 (de) | 1972-11-17 | 1973-11-16 | Messgeraet mit hoher empfindlichkeit zur lagebestimmung |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2357381A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2250424A5 (enrdf_load_stackoverflow) |
| GB (1) | GB1448487A (enrdf_load_stackoverflow) |
| IT (1) | IT998746B (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2318404A1 (fr) * | 1975-07-15 | 1977-02-11 | Bosch Gmbh Robert | Dispositif de detection d'au moins un repere sur un corps en rotation |
| EP0515187A3 (en) * | 1991-05-22 | 1993-08-11 | Wolff Controls Corporation | Method and apparatus for sensing proximity of an object using near-field effects |
| US5670886A (en) * | 1991-05-22 | 1997-09-23 | Wolf Controls Corporation | Method and apparatus for sensing proximity or position of an object using near-field effects |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2726103C2 (de) * | 1977-06-10 | 1984-11-29 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Einrichtung zum Anzeigen der Geschwindigkeitsänderung eines Schiffes |
| US4237517A (en) * | 1978-04-28 | 1980-12-02 | Ludlow Industries, Inc. | Motion monitoring apparatus |
-
1972
- 1972-11-17 FR FR7241570A patent/FR2250424A5/fr not_active Expired
-
1973
- 1973-10-15 IT IT3013873A patent/IT998746B/it active
- 1973-11-16 DE DE19732357381 patent/DE2357381A1/de not_active Withdrawn
- 1973-11-19 GB GB5352773A patent/GB1448487A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2318404A1 (fr) * | 1975-07-15 | 1977-02-11 | Bosch Gmbh Robert | Dispositif de detection d'au moins un repere sur un corps en rotation |
| EP0515187A3 (en) * | 1991-05-22 | 1993-08-11 | Wolff Controls Corporation | Method and apparatus for sensing proximity of an object using near-field effects |
| US5459405A (en) * | 1991-05-22 | 1995-10-17 | Wolff Controls Corp. | Method and apparatus for sensing proximity of an object using near-field effects |
| US5633593A (en) * | 1991-05-22 | 1997-05-27 | Wolff; George D. | Apparatus for sensing proximity of a moving target |
| US5670886A (en) * | 1991-05-22 | 1997-09-23 | Wolf Controls Corporation | Method and apparatus for sensing proximity or position of an object using near-field effects |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1448487A (en) | 1976-09-08 |
| IT998746B (it) | 1976-02-20 |
| FR2250424A5 (enrdf_load_stackoverflow) | 1975-05-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8141 | Disposal/no request for examination |