FR2146765A5 - - Google Patents
Info
- Publication number
- FR2146765A5 FR2146765A5 FR7225489A FR7225489A FR2146765A5 FR 2146765 A5 FR2146765 A5 FR 2146765A5 FR 7225489 A FR7225489 A FR 7225489A FR 7225489 A FR7225489 A FR 7225489A FR 2146765 A5 FR2146765 A5 FR 2146765A5
- Authority
- FR
- France
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
- H05G1/08—Electrical details
- H05G1/26—Measuring, controlling or protecting
- H05G1/30—Controlling
- H05G1/38—Exposure time
- H05G1/42—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube
- H05G1/44—Exposure time using arrangements for switching when a predetermined dose of radiation has been applied, e.g. in which the switching instant is determined by measuring the electrical energy supplied to the tube in which the switching instant is determined by measuring the amount of radiation directly
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- X-Ray Techniques (AREA)
- Details Of Television Scanning (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2135921A DE2135921C3 (de) | 1971-07-17 | 1971-07-17 | Eigengetriggerte Schaltungsanordnung für einen Meßverstärker |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2146765A5 true FR2146765A5 (fr) | 1973-03-02 |
Family
ID=5814069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7225489A Expired FR2146765A5 (fr) | 1971-07-17 | 1972-07-13 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3854096A (fr) |
DE (1) | DE2135921C3 (fr) |
FR (1) | FR2146765A5 (fr) |
GB (1) | GB1391799A (fr) |
SE (1) | SE377028B (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2411630C2 (de) * | 1974-03-12 | 1982-01-14 | Philips Patentverwaltung Gmbh, 2000 Hamburg | "Röntgeneinrichtung mit einem Belichtungsautomaten mit automatischer Wahl und Einschaltung der Meßfelder" |
DE2443681A1 (de) * | 1974-09-12 | 1976-03-25 | Siemens Ag | Zahnaerztliche roentgendiagnostikeinrichtung |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2537914A (en) * | 1946-06-01 | 1951-01-09 | Automatic X Ray Corp | Control system |
-
1971
- 1971-07-17 DE DE2135921A patent/DE2135921C3/de not_active Expired
-
1972
- 1972-07-13 FR FR7225489A patent/FR2146765A5/fr not_active Expired
- 1972-07-13 US US00271346A patent/US3854096A/en not_active Expired - Lifetime
- 1972-07-14 SE SE7209298A patent/SE377028B/xx unknown
- 1972-07-14 GB GB3302572A patent/GB1391799A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1391799A (en) | 1975-04-23 |
DE2135921B2 (de) | 1973-06-28 |
US3854096A (en) | 1974-12-10 |
DE2135921C3 (de) | 1974-01-24 |
DE2135921A1 (de) | 1973-01-25 |
SE377028B (fr) | 1975-06-16 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |