CN2162973Y - Power output safety controller for microwave machine - Google Patents
Power output safety controller for microwave machine Download PDFInfo
- Publication number
- CN2162973Y CN2162973Y CN 93234109 CN93234109U CN2162973Y CN 2162973 Y CN2162973 Y CN 2162973Y CN 93234109 CN93234109 CN 93234109 CN 93234109 U CN93234109 U CN 93234109U CN 2162973 Y CN2162973 Y CN 2162973Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- output safety
- power output
- microwave machine
- safety controller
- 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 - Fee Related
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Abstract
The utility model relates to a power output safety controller for a microwave machine, which belongs to a device arranged on a microwave machine. The purpose is to design an automatic adjusted, and power output safety controller. An incident current control method is used by the utility model. A safe dose controlling circuit is connected in an electric circuit mainly composed of an electric error-detector circuit and a control logic circuit. Therefore, the purpose of the power output safety and the automatic adjustment can be achieved. The device is especially suitable for the intra-cavitary therapy by a medical microwave machine.
Description
This utility model belongs to a kind of device on the microwave machine.
When the medical microwave machine is used for intracavitary therapy, adopt thermometry to come the controlled microwave exposure dose usually.In the control of microwave machine energy output, generally all adopt comparatively simple control circuit, according to measured temperature, manual adjustment or the size of regulating output automatically.But, because accurately measuring, the microwave temperature field is difficult to realize, generally adopt the some warming therapy, and some warming therapy error is quite big, and very dangerous.
The purpose of this utility model will design a kind of can the adjusting automatically exactly, and the microwave machine energy output control device of energy output safety.
Design of the present utility model is to adopt incident current control method, according to long-term experiment gained empirical data, the microwave energy export-restriction in safety range, and is regulated automatically.
This utility model energy output safety is regulated automatically, and error is little, and is easy to use, is particularly suitable for the medical microwave machine and is used for intracavitary therapy.
Accompanying drawing is a control principle sketch map of the present utility model.
Below in conjunction with accompanying drawing this utility model circuit formation and control principle are described in further detail.
With reference to accompanying drawing, circuit mainly is made up of safety control circuit ［ 1 ］ (being the circuit in the frame of broken lines), error-detector circuit ［ 2 ］ and control logic circuit ［ 3 ］.Magnetron ［ 9 ］ the operating current current indicator ［ 5 ］ of flowing through after selector switch ［ 4 ］ flows through resistor network ［ 8 ］, produces voltage drop on resistance.Error-detector circuit ［ 2 ］ with this voltage and normal voltage relatively after, send control logic circuit ［ 3 ］ with error signal, the input voltage of control high-tension transformer ［ 10 ］ changes, thereby the operating current of magnetron ［ 9 ］ is stabilized in predetermined scope.Current indicator ［ 5 ］ is used to indicate the size of operating current, and permutator ［ 4 ］ is used to change output area with resistor network ［ 8 ］.Potentiometer ［ 7 ］ is used for manual fine-tuning, and capacitor ［ 6 ］ is used for high frequency bypass.As required, resistance can adopt series connection, also can adopt parallel connection.
Claims (2)
1, a kind of microwave machine energy output safety control, comprise error-detector circuit [2], control logic circuit [3], magnetron [9], high-tension transformer [10], it is characterized in that in foregoing circuit connecting a safe dose control circuit [1], safe dose control circuit [1] is associated with current indicator [5], selector switch [4], resistor network [8], potentiometer [7], safe dose control circuit [1] successively and also is associated with a capacitor [6] that is used for high frequency bypass.
2, microwave energy output safety control device according to claim 1 is characterized in that the resistance in the resistor network ［ 8 ］ in the safety control circuit ［ 1 ］ can adopt parallel connection or series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234109 CN2162973Y (en) | 1993-06-11 | 1993-06-11 | Power output safety controller for microwave machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93234109 CN2162973Y (en) | 1993-06-11 | 1993-06-11 | Power output safety controller for microwave machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2162973Y true CN2162973Y (en) | 1994-04-27 |
Family
ID=33809856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93234109 Expired - Fee Related CN2162973Y (en) | 1993-06-11 | 1993-06-11 | Power output safety controller for microwave machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2162973Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916762A (en) * | 2019-07-01 | 2020-03-27 | 广州易和医疗技术开发有限公司 | Multi-output minimally invasive surgery system based on resistance network |
-
1993
- 1993-06-11 CN CN 93234109 patent/CN2162973Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110916762A (en) * | 2019-07-01 | 2020-03-27 | 广州易和医疗技术开发有限公司 | Multi-output minimally invasive surgery system based on resistance network |
| CN110916762B (en) * | 2019-07-01 | 2022-05-17 | 广州易和医疗技术开发有限公司 | Multi-output minimally invasive surgery system based on resistance network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |