DE588274C - Device for the protection of X-ray systems - Google Patents
Device for the protection of X-ray systemsInfo
- Publication number
- DE588274C DE588274C DE1930588274D DE588274DD DE588274C DE 588274 C DE588274 C DE 588274C DE 1930588274 D DE1930588274 D DE 1930588274D DE 588274D D DE588274D D DE 588274DD DE 588274 C DE588274 C DE 588274C
- Authority
- DE
- Germany
- Prior art keywords
- exposure
- clock
- exposure clock
- time
- tube
- 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.)
- Expired
Links
Classifications
-
- 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
- H05G1/40—Exposure time using adjustable time-switch
Description
Bei Röntgenaufnahmen wird die Hochspannung im allgemeinen in der Weise geschaltet, daß eine Belichtungsuhr den Primärkreis des Hochspannungstransformators über ein Schütz schließt und nach Ablauf der eingestellten Belichtungszeit automatisch unterbricht. Bei wohl allen bisher vorhandenen Belichtungsuhren besteht die Gefahr, daß die Uhr beim Ausschalten versagt oder daß zum mindestenIn the case of x-rays, the high voltage is generally switched in such a way that that an exposure clock connects the primary circuit of the high voltage transformer via a contactor closes and automatically interrupts after the set exposure time has elapsed. at all exposure clocks that have existed up to now run the risk that the clock at Switching off fails, or at least that
ίο bei kurzen Belichtungszeiten eine Schaltverzögerung eintritt, die zur Überlastung der Röntgenröhre führen kann. Der dadurch entstehende Schaden ist beträchtlich, zumal wenn Röhren mit drehender Anode Verwendung finden. Das Streben nach äußerster Verkürzung der Schaltzeiten bei erhöhter Röhrenbelastung macht eine zuverlässige Sicherung gegen eine derartige Zerstörungsgefahr der Röntgenröhren unbedingt -erforderlich.ίο with short exposure times a switching delay occurs which can lead to overloading of the X-ray tube. The resulting damage is considerable, especially when tubes with rotating anodes are used. The pursuit of extreme shortening of the switching times with increased tube loading makes reliable protection against such a risk of destruction of the X-ray tubes absolutely necessary.
/ Gegenstand der Erfindung ist eine einfache Einrichtung zur Beseitigung dieser Überbelastungsgefahr durch Einbau einer gleichzeitig mit der Belichtungsuhr ausgelösten Zeitschalteinrichtung in den Schalttisch des Röntgenapparates, die für jede Röhrenbelastung so eingestellt werden kann, daß sie unabhängig von der Belichtungsuhr den Primärkreis des Hochspannungstransformators unterbricht, sobald die zeitliche Belastungsgrenze der Röntgenröhre erreicht ist./ The invention relates to a simple device for eliminating this risk of overloading by installing a timer that is triggered at the same time as the exposure clock in the indexing table of the X-ray apparatus that can be adjusted for each tube load so that it the primary circuit of the high-voltage transformer independent of the exposure clock interrupts as soon as the time limit of the X-ray tube is reached.
Der Zeitschalter kann die gleiche Ausführung wie die Belichtungsuhr besitzen, aber auch wesentlich.einfacher gebaut sein. Zweckmäßig werden die Arbeitskontakte beider Belichtungsuhren in Reihe geschaltet. Es genügt vollkommen, wenn die als Sicherheitsschalter dienende Belichtungsuhr nur wenige einstellbare Zeitstufen besitzt.The timer can have the same design as the exposure clock, but also be built much simpler. The working contacts of both exposure clocks are useful connected in series. It is completely sufficient if they are used as a safety switch serving exposure clock has only a few adjustable time levels.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE588274T | 1930-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE588274C true DE588274C (en) | 1933-11-15 |
Family
ID=6572353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1930588274D Expired DE588274C (en) | 1930-06-15 | 1930-06-15 | Device for the protection of X-ray systems |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE588274C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011095635A1 (en) | 2010-02-08 | 2011-08-11 | Robert Bosch Gmbh | Novel circuit and method for communicating via a single line |
-
1930
- 1930-06-15 DE DE1930588274D patent/DE588274C/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011095635A1 (en) | 2010-02-08 | 2011-08-11 | Robert Bosch Gmbh | Novel circuit and method for communicating via a single line |
US9170967B2 (en) | 2010-02-08 | 2015-10-27 | Robert Bosch Gmbh | System and method for transmitting information from a transmitter to a receiver via a single line |
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