JPS6273499U - - Google Patents
Info
- Publication number
- JPS6273499U JPS6273499U JP16413485U JP16413485U JPS6273499U JP S6273499 U JPS6273499 U JP S6273499U JP 16413485 U JP16413485 U JP 16413485U JP 16413485 U JP16413485 U JP 16413485U JP S6273499 U JPS6273499 U JP S6273499U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- neutral point
- tube current
- high 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
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- X-Ray Techniques (AREA)
Description
図面は本発明回路が適用されたＸ線高電圧装置
の一例を示す回路図である。
１……高圧発生装置、１１……三相高圧変圧器
、１２，１３……三相高圧整流器、１４……高圧
中性点回路、Ｒ１〜Ｒ４……管電流測定用負荷抵
抗、ＩＰ……管電流、ＶＩ（Ｎ），ＶＩ（ＮＥ）
……負荷抵抗両端間電圧、２……Ｘ線管、５……
本考案Ｘ線管電流測定回路、５ａ，５ｂ……高入
力インピーダンス差動アンプ、ＶＯ（Ｎ），ＶＯ
（ＮＥ）……差動アンプ出力電圧（信号）。
The drawing is a circuit diagram showing an example of an X-ray high voltage device to which the circuit of the present invention is applied. 1... High voltage generator, 11... Three-phase high voltage transformer, 12, 13... Three-phase high voltage rectifier, 14... High voltage neutral point circuit, R1 to R4... Load resistance for tube current measurement, IP... Tube current, VI (N), VI (NE)
...Voltage across load resistor, 2...X-ray tube, 5...
Invention X-ray tube current measurement circuit, 5a, 5b...high input impedance differential amplifier, VO(N), VO
(NE)...Differential amplifier output voltage (signal).
Claims (1)
の中性点が接地された中性点接地方式のＸ線高電
圧装置において、前記高圧中性点回路に管電流測
定用に設けた負荷抵抗の両端間電圧が入力端に印
加される高入力インピーダンスの差動アンプを備
え、この差動アンプの出力電圧信号を管電流とし
て測定することを特徴とするＸ線管電流測定回路
。 (2) 前記高圧中性点回路の陰極側接続端及び接
地端間と陽極側接続端及び接地端間との各負荷抵
抗の両端間電圧が各別に入力端に印加されるよう
に前記差動アンプを２組備え、前記高圧中性点回
路の陰極側及び陰極側の両管電流を同時に測定す
ることを特徴とする実用新案登録請求の範囲第１
項記載のＸ線管電流測定回路。 (3) 前記負荷抵抗は前記Ｘ線高電圧装置の高圧
発生装置中の高圧整流器に直結されることを特徴
とする実用新案登録請求の範囲第１項又は第２項
記載のＸ線管電流測定回路。[Scope of Claim for Utility Model Registration] (1) In a neutral point grounding type X-ray high voltage device in which a neutral point on the secondary side of a high voltage transformer is grounded by a high voltage neutral point circuit, the high voltage neutral point The circuit is equipped with a high input impedance differential amplifier to which the voltage across the load resistor provided for tube current measurement is applied to the input terminal, and the output voltage signal of this differential amplifier is measured as the tube current. X-ray tube current measurement circuit. (2) The voltage between the cathode side connection terminal and the ground terminal and the anode side connection terminal and the ground terminal of the high voltage neutral point circuit is such that the voltage between both ends of each load resistor is applied to the input terminal separately. Utility model registration claim 1 characterized in that it is equipped with two sets of amplifiers and simultaneously measures both tube currents on the cathode side and the cathode side of the high voltage neutral point circuit.
The X-ray tube current measurement circuit described in . (3) The X-ray tube current measurement according to claim 1 or 2, wherein the load resistor is directly connected to a high-voltage rectifier in a high-voltage generator of the X-ray high-voltage device. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413485U JPS6273499U (en) | 1985-10-28 | 1985-10-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16413485U JPS6273499U (en) | 1985-10-28 | 1985-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6273499U true JPS6273499U (en) | 1987-05-11 |
Family
ID=31092973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16413485U Pending JPS6273499U (en) | 1985-10-28 | 1985-10-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6273499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003007496A (en) * | 2001-06-26 | 2003-01-10 | Hitachi Medical Corp | X-ray high-voltage equipment |
-
1985
- 1985-10-28 JP JP16413485U patent/JPS6273499U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003007496A (en) * | 2001-06-26 | 2003-01-10 | Hitachi Medical Corp | X-ray high-voltage equipment |
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