CN110831309A - Method for reducing direct-current high-voltage error output by high-frequency high-voltage generator - Google Patents
Method for reducing direct-current high-voltage error output by high-frequency high-voltage generator Download PDFInfo
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- CN110831309A CN110831309A CN201911034361.7A CN201911034361A CN110831309A CN 110831309 A CN110831309 A CN 110831309A CN 201911034361 A CN201911034361 A CN 201911034361A CN 110831309 A CN110831309 A CN 110831309A
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- voltage
- voltage generator
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- 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
- H05G1/10—Power supply arrangements for feeding the X-ray tube
- H05G1/12—Power supply arrangements for feeding the X-ray tube with dc or rectified single-phase ac or double-phase
-
- 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
- H05G1/32—Supply voltage of the X-ray apparatus or tube
Abstract
The invention provides a method for reducing a direct current high voltage error output by a high-frequency high-voltage generator, which comprises the following steps: s1, starting; s2, carrying out exposure operation by a high-frequency high-voltage generator; s3, measuring the output voltage of the high-frequency high-voltage generator, and calculating the deviation proportion of the output voltage of the high-frequency high-voltage generator and a theoretical value; s4, judging whether the deviation proportion is in the set range, if so, entering the next step, if not, adjusting the KV calibration proportion and returning to the step S2; and S5, ending. The invention has the beneficial effects that: the casing does not need to be opened, the operation process is simple, and the direct current high voltage output by the high-frequency high-voltage generator can be quantitatively adjusted, so that the bulb tube can obtain more accurate direct current high voltage, and the image quality of the radiological medical image equipment is improved.
Description
Technical Field
The invention relates to a high-frequency high-voltage generator, in particular to a method for reducing a direct-current high-voltage error output by the high-frequency high-voltage generator.
Background
The high-frequency high-voltage generator is one of core components of the X-ray machine, and is used for providing direct-current high voltage for the high-voltage bulb tube to enable the high-voltage bulb tube to output X-rays with concentrated energy, and the direct-current voltage value is a key parameter of the X-ray machine; when the medical X-ray machine is used and acts on different individual body types and different human body parts, different bulb tube voltage levels (kV values) are generally needed to control the radiation quantity of X-rays; therefore, the tube voltage output by the tube voltage transformer is required to be high in precision and adjustable; the high-frequency high-voltage generator outputs direct-current high voltage with errors, the high-frequency high-voltage generator outputs direct-current high voltage with errors generally about 4% in the market, and the calibration process is complicated and cannot quantitatively adjust the output errors, so that the errors can be quantitatively adjusted by certain means and the calibration process is simplified.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a method for reducing the direct current high voltage error output by a high-frequency high-voltage generator.
The invention provides a method for reducing a direct current high voltage error output by a high-frequency high-voltage generator, which comprises the following steps:
s1, starting;
s2, carrying out exposure operation by a high-frequency high-voltage generator;
s3, measuring the output voltage of the high-frequency high-voltage generator, and calculating the deviation proportion of the output voltage of the high-frequency high-voltage generator and a theoretical value;
s4, judging whether the deviation proportion is in the set range, if so, entering the next step, if not, adjusting the KV calibration proportion and returning to the step S2;
and S5, ending.
As a further improvement of the present invention, in step S4, if the KV calibration ratio is not within the set range, the KV calibration ratio is adjusted by the upper computer, a corresponding command is sent to the high-frequency high-voltage generator through the serial port, and the main control unit of the high-frequency high-voltage generator correspondingly adjusts the output dc high voltage according to the command and returns to step S2.
The invention has the beneficial effects that: through the scheme, the shell does not need to be opened, the operation process is simple, and the direct-current high voltage output by the high-frequency high-voltage generator can be quantitatively adjusted, so that the bulb tube can obtain more accurate direct-current high voltage, and the image quality of the medical image equipment is improved.
Drawings
Fig. 1 is a schematic block diagram of a method for reducing dc high voltage error output by a high frequency high voltage generator according to the present invention.
Fig. 2 is a KV feedback voltage display diagram of a method for reducing the error of the dc high voltage output by the high frequency high voltage generator according to the present invention.
Fig. 3 is a flow chart of a method of reducing dc high voltage error output by a high frequency high voltage generator in accordance with the present invention.
Detailed Description
The invention is further described with reference to the following description and embodiments in conjunction with the accompanying drawings.
As shown in fig. 1 to 3, a method for reducing a dc high voltage error output by a high frequency high voltage generator includes the following steps:
s1, starting;
s2, carrying out exposure operation by a high-frequency high-voltage generator;
s3, measuring the output voltage of the high-frequency high-voltage generator, and calculating the deviation percentage of the actual output voltage of the high-frequency high-voltage generator and a theoretical value;
s4, judging whether the deviation percentage is within a set range (a set reasonable range), if so, entering the next step, if not, adjusting the KV calibration percentage through an upper computer, sending a corresponding instruction to the high-frequency high-voltage generator through a serial port, and correspondingly adjusting the output direct-current high voltage through a main control unit of the high-frequency high-voltage generator according to the instruction and returning to the step S2;
and S5, ending.
When the high-frequency high-voltage generator is exposed, if the voltage of an output bulb tube has deviation, calculating the deviation percentage, adjusting the KV calibration percentage on an upper computer interface, sending a corresponding instruction to the high-frequency high-voltage generator through a serial port, correspondingly adjusting the output DC high voltage by a main control unit of the high-frequency high-voltage generator according to the instruction, wherein the DC high voltage output by the conventional high-frequency high-voltage generator inevitably has errors, and the KV calibration percentage is adjusted by the upper computer, so that the output voltage can be quantitatively calibrated, and the errors are reduced.
The method for reducing the direct current high voltage error output by the high-frequency high-voltage generator provided by the invention has the advantages that the casing does not need to be opened, the operation process is simple, and the direct current high voltage output by the high-frequency high-voltage generator can be quantitatively adjusted, so that the bulb tube can obtain more accurate direct current high voltage, and the image quality of the CT equipment is improved.
The method for reducing the direct current high voltage error output by the high-frequency high-voltage generator has the following advantages that:
1. the aim of quantitative regulation is achieved for the direct-current high voltage output by the high-voltage generator, and the error of the high-voltage generator is reduced.
2. The operation flow of the direct current high voltage calibration output by the high voltage generator is greatly simplified, and the working efficiency is improved.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (2)
1. A method for reducing dc high voltage error output by a high frequency high voltage generator, comprising the steps of:
s1, starting;
s2, carrying out exposure operation by a high-frequency high-voltage generator;
s3, measuring the output voltage of the high-frequency high-voltage generator, and calculating the deviation proportion of the output voltage of the high-frequency high-voltage generator and a theoretical value;
s4, judging whether the deviation proportion is in the set range, if so, entering the next step, if not, adjusting the KV calibration proportion and returning to the step S2;
and S5, ending.
2. The method for reducing the DC high voltage error of the output of the high frequency high voltage generator according to claim 1, wherein: in step S4, if the voltage is not within the set range, the KV calibration ratio is adjusted by the upper computer, a corresponding command is sent to the high-frequency high-voltage generator through the serial port, and the main control unit of the high-frequency high-voltage generator correspondingly adjusts the output dc high voltage according to the command and returns to step S2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034361.7A CN110831309A (en) | 2019-10-29 | 2019-10-29 | Method for reducing direct-current high-voltage error output by high-frequency high-voltage generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911034361.7A CN110831309A (en) | 2019-10-29 | 2019-10-29 | Method for reducing direct-current high-voltage error output by high-frequency high-voltage generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110831309A true CN110831309A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911034361.7A Pending CN110831309A (en) | 2019-10-29 | 2019-10-29 | Method for reducing direct-current high-voltage error output by high-frequency high-voltage generator |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050226384A1 (en) * | 2002-01-25 | 2005-10-13 | Takuya Domoto | X-ray tube apparatus, x-rya exposure determiner, x-ray generator using them, and radiograph |
| JP2008108440A (en) * | 2006-10-23 | 2008-05-08 | Shimadzu Corp | X-ray high voltage device and x-ray diagnostic apparatus including x-ray high voltage device |
| CN101765290A (en) * | 2009-12-07 | 2010-06-30 | 芜湖国睿兆伏电子股份有限公司 | High-voltage generator used for X-ray machine and control method thereof |
| CN101965093A (en) * | 2010-08-03 | 2011-02-02 | 深圳市蓝韵实业有限公司 | High pressure generator calibration method |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备系统有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
-
2019
- 2019-10-29 CN CN201911034361.7A patent/CN110831309A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050226384A1 (en) * | 2002-01-25 | 2005-10-13 | Takuya Domoto | X-ray tube apparatus, x-rya exposure determiner, x-ray generator using them, and radiograph |
| JP2008108440A (en) * | 2006-10-23 | 2008-05-08 | Shimadzu Corp | X-ray high voltage device and x-ray diagnostic apparatus including x-ray high voltage device |
| CN101765290A (en) * | 2009-12-07 | 2010-06-30 | 芜湖国睿兆伏电子股份有限公司 | High-voltage generator used for X-ray machine and control method thereof |
| CN101965093A (en) * | 2010-08-03 | 2011-02-02 | 深圳市蓝韵实业有限公司 | High pressure generator calibration method |
| CN103208924A (en) * | 2013-04-18 | 2013-07-17 | 东软飞利浦医疗设备系统有限责任公司 | Kilovolt (KV) control method and system adopting digital technique |
Non-Patent Citations (1)
| Title |
|---|
| 侯启真: "《机场安全防范技术》", 30 April 2013 * |
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Application publication date: 20200221 |