BE685330A - - Google Patents
Info
- Publication number
- BE685330A BE685330A BE685330DA BE685330A BE 685330 A BE685330 A BE 685330A BE 685330D A BE685330D A BE 685330DA BE 685330 A BE685330 A BE 685330A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
-
- 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
-
- 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
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- 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
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1203—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier being a single transistor
-
- 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
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Electromagnetism (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Electronic Switches (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR28987A FR1507154A (fr) | 1965-08-20 | 1965-08-20 | Détecteur à oscillateur |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE685330A true BE685330A (es) | 1967-01-16 |
Family
ID=8586988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE685330D BE685330A (es) | 1965-08-20 | 1966-08-10 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3457465A (es) |
| BE (1) | BE685330A (es) |
| CH (1) | CH443504A (es) |
| DE (1) | DE1299429B (es) |
| ES (1) | ES330403A1 (es) |
| FR (1) | FR1507154A (es) |
| GB (1) | GB1084348A (es) |
| SE (1) | SE346628B (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2458740C3 (de) * | 1970-06-04 | 1982-11-11 | Geb. Kestler Christl 8728 Hassfurt Voll | Metallsuchgerät in einem handlichen, tragbaren Gehäuse zur Auffindung von verdeckten metallischen Einschlüssen |
| DE2027408C3 (de) * | 1970-06-04 | 1974-12-12 | 8728 Hassfurt Voll Christl | Metallsuchgerät in einem handlichen, tragbaren Gehäuse zur Auffindung von verdeckten metallischen Einschlüssen |
| FR2522830B1 (fr) * | 1982-03-05 | 1985-09-06 | Petercem Sa | Procede et dispositif de detection d'une cible magnetique dans une zone de proximite definie |
| FR2596643B1 (fr) * | 1986-04-07 | 1988-06-24 | Mtm Leader | Guidage d'un mobile selon un trajet predetermine sur une aire support |
| US4839602A (en) * | 1986-11-04 | 1989-06-13 | Philip Morris Incorporated | Means for detecting metal in a stream of particulate matter |
| CN108168950A (zh) * | 2018-01-12 | 2018-06-15 | 杭州启绿科技有限公司 | 基于磁导传感的样液定值采样装置 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815911A (en) * | 1956-02-06 | 1959-07-01 | Gen Electric Co Ltd | Improvements in or relating to oscillator circuits incorporating junction transistors |
| DE1031532B (de) * | 1953-12-23 | 1958-06-04 | Siemens Ag | Anordnung zur Umsetzung mechanischer Groessen in elektrische Groessen in der Fernmeldetechnik, fuer UEberwachungs-schaltungen, Messwertumformer, Messwertverstaerker od. dgl. |
| US2907931A (en) * | 1954-07-09 | 1959-10-06 | Honeywell Regulator Co | Control apparatus |
| US2889496A (en) * | 1954-07-09 | 1959-06-02 | Honeywell Regulator Co | Electrical control apparatus |
| DE1003465B (de) * | 1955-04-07 | 1957-02-28 | Nordwestdeutscher Rundfunk Ans | Anordnung zum Hoerbarmachen von UEbersteuerungen |
| US2985848A (en) * | 1957-08-16 | 1961-05-23 | Gen Controls Co | Vane controlled transistor oscillator |
| DE1086302B (de) * | 1957-12-20 | 1960-08-04 | Zd Y Prumyslove Automatisace N | Transistor-Oszillator mit veraenderlicher Stromentnahme |
| US3034022A (en) * | 1958-01-16 | 1962-05-08 | Fielden Electronics Ltd | Switching circuits |
| DE1058609B (de) * | 1958-07-30 | 1959-06-04 | Metrawatt Ag | Transistoroszillator fuer induktive Zeigerabgriffeinrichtungen |
| US3100879A (en) * | 1959-05-08 | 1963-08-13 | United Aircraft Corp | Capacitance sensing circuit |
-
1965
- 1965-08-20 FR FR28987A patent/FR1507154A/fr not_active Expired
-
1966
- 1966-08-10 BE BE685330D patent/BE685330A/xx unknown
- 1966-08-19 CH CH1198066A patent/CH443504A/fr unknown
- 1966-08-19 US US573553A patent/US3457465A/en not_active Expired - Lifetime
- 1966-08-19 DE DET31874A patent/DE1299429B/de active Pending
- 1966-08-19 SE SE11256/66A patent/SE346628B/xx unknown
- 1966-08-19 GB GB3729066A patent/GB1084348A/en not_active Expired
- 1966-08-19 ES ES0330403A patent/ES330403A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3457465A (en) | 1969-07-22 |
| GB1084348A (en) | 1967-09-20 |
| ES330403A1 (es) | 1967-06-16 |
| DE1299429B (de) | 1969-07-17 |
| SE346628B (es) | 1972-07-10 |
| CH443504A (fr) | 1967-09-15 |
| FR1507154A (fr) | 1967-12-29 |