JPS54157491A - X-ray control unit - Google Patents
X-ray control unitInfo
- Publication number
- JPS54157491A JPS54157491A JP6632578A JP6632578A JPS54157491A JP S54157491 A JPS54157491 A JP S54157491A JP 6632578 A JP6632578 A JP 6632578A JP 6632578 A JP6632578 A JP 6632578A JP S54157491 A JPS54157491 A JP S54157491A
- Authority
- JP
- Japan
- Prior art keywords
- current
- tube
- filament
- conversion
- 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.)
- Pending
Links
Landscapes
- X-Ray Techniques (AREA)
Abstract
PURPOSE: To increase the setting accuracy of the tube current as well as to decrease the number of the adjustment processes by incorporating the μ-computer into the X-ray controller and making use of the memory function in order to secure the feedback control even to the exposure of a single shot and short time.
CONSTITUTION: The current of X-ray tube 8 is measured at the secondary output of transformer 6 and then undergoes A/D conversion 25 to be compared 26 with the set value 15. Thus the error signals are emitted and received at table 27 to index ΔVF/ΔIP corresponding to the voltage and the current of tube 8 then, with multiplication by the error signal to be memorized 28. Then D/A conversion 29 is given to the memory contents for correction toward reduction of the error via DC stabilization power source 19. The memory contents is then applied to the filament via inverter 20 and transformer 11. As a result, the filament current flows to obtain the prescribed tube current to be controlled to hold the set value even with the up-down change of the tube voltage. At exposure of the X-rays, stored memory 28 is drawn out and undergoes D/A conversion 29 to control the output of filament stabilization current 19. Thus, the filament voltage features another new value.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6632578A JPS54157491A (en) | 1978-06-02 | 1978-06-02 | X-ray control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6632578A JPS54157491A (en) | 1978-06-02 | 1978-06-02 | X-ray control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54157491A true JPS54157491A (en) | 1979-12-12 |
Family
ID=13312563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6632578A Pending JPS54157491A (en) | 1978-06-02 | 1978-06-02 | X-ray control unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54157491A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832399A (en) * | 1981-05-14 | 1983-02-25 | ヘネラル・エスパニヨ−ラ・デ・エレクトロメデイシナ・ソシエダッド・アノニマ | Static control system for closed circuit intensity of x-ray generator |
| JPS5861599A (en) * | 1981-10-08 | 1983-04-12 | Hitachi Medical Corp | X-ray tube filament current feed circuit |
| JPS58152800U (en) * | 1982-04-05 | 1983-10-13 | 株式会社日立メデイコ | X-ray filament heating device |
| JP2015536551A (en) * | 2012-11-21 | 2015-12-21 | サーモ サイエンティフィック ポータブル アナリティカル インスツルメンツ インコーポレイテッド | Dynamically adjustable filament control via firmware for small X-ray sources |
| JP2022525980A (en) * | 2019-03-26 | 2022-05-20 | ニコン・メトロロジー・エヌヴェ | Methods for setting filament demand in X-ray equipment, controllers, X-ray equipment, control programs and storage media |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026280A (en) * | 1983-07-22 | 1985-02-09 | 株式会社村田製作所 | Rotary hearth type electric furnace |
-
1978
- 1978-06-02 JP JP6632578A patent/JPS54157491A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026280A (en) * | 1983-07-22 | 1985-02-09 | 株式会社村田製作所 | Rotary hearth type electric furnace |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5832399A (en) * | 1981-05-14 | 1983-02-25 | ヘネラル・エスパニヨ−ラ・デ・エレクトロメデイシナ・ソシエダッド・アノニマ | Static control system for closed circuit intensity of x-ray generator |
| JPS5861599A (en) * | 1981-10-08 | 1983-04-12 | Hitachi Medical Corp | X-ray tube filament current feed circuit |
| JPH0159718B2 (en) * | 1981-10-08 | 1989-12-19 | Hitachi Medical Corp | |
| JPS58152800U (en) * | 1982-04-05 | 1983-10-13 | 株式会社日立メデイコ | X-ray filament heating device |
| JP2015536551A (en) * | 2012-11-21 | 2015-12-21 | サーモ サイエンティフィック ポータブル アナリティカル インスツルメンツ インコーポレイテッド | Dynamically adjustable filament control via firmware for small X-ray sources |
| JP2022525980A (en) * | 2019-03-26 | 2022-05-20 | ニコン・メトロロジー・エヌヴェ | Methods for setting filament demand in X-ray equipment, controllers, X-ray equipment, control programs and storage media |
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