CN201787919U - Deformation detecting device - Google Patents
Deformation detecting device Download PDFInfo
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- CN201787919U CN201787919U CN 201020273799 CN201020273799U CN201787919U CN 201787919 U CN201787919 U CN 201787919U CN 201020273799 CN201020273799 CN 201020273799 CN 201020273799 U CN201020273799 U CN 201020273799U CN 201787919 U CN201787919 U CN 201787919U
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- signal
- column
- foil gauge
- display module
- deformation amount
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- Expired - Lifetime
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Abstract
The utility model provides a deformation detecting device for an X-ray machine vertical column, which comprises a sensing unit, a processing unit and a display module. The sensing unit includes a plurality of strain gauges arranged on the X-ray machine vertical column; and the processing unit includes signal amplifiers and signal processors, wherein the signal amplifiers are respectively in signal connection with output ends of the corresponding strain gauges, and the signal processors are respectively in signal connection with the corresponding signal amplifiers. Besides, the display module is in signal connection with output ends of the signal processors so as to respectively display deformation of an X-ray machine sensed by the strain gauges. The detecting device can accurately and visually display deformation numerical value of the specific position of the vertical column in a numerical manner and provides guidance for design of the vertical column.
Description
Technical field
The utility model relates to a kind of device for testing deformation amount, particularly uses the pick-up unit in medical x-ray machine column (object to be checked) deflection detects.
Background technology
Be illustrated in figure 1 as a kind of structural representation of existing medical x-ray machine, it comprises " L " shape column 10, bulb 12, light concentrator 14 and patient support 18.Wherein, column 10 is a cantilever design, and an end of column 10 cantilevers links to each other with patient support 18, the other end is bulb 12 and light concentrator 14 fixedly, all quality is bigger owing to be installed in bulb 12 on the column 10 and light concentrator 14, if the structure of column 11 and/or intensity are unreasonable, is easy to distortion.The distortion of column 10 can cause the image offset of X line machine, and diagnosis is caused adverse effect.
When designing the column of medical x-ray machine usually, at first by the stressed of Computer Simulation software analysis column and distortion, make column according to analyzing conclusion then, and column is installed in the X line machine tests, obtain the deflection of column by the side-play amount of image, the column deflection that column deflection and the computing machine of actual measurement obtained contrasts again, thus the column of original design is revised.Owing to can't learn the practical distortion amount of column particular location, weak link that can't column designs targetedly, can only carry out a large amount of designing repeatedly, making and field test obtain final pillar construction, cause the wide variety of materials waste thus, and waste time and energy.
Simultaneously, use oscillograph or voltage table to show the deflection of foil gauge in the prior art usually, react insensitive, precision is not high, can't adapt to the accuracy requirement of the very high medical x-ray machine of accuracy requirement.
The application people is that the Chinese patent application 200680022741.3 of Siemens Company (Siemens AG) discloses a kind of means of measuring the supporting construction of lithotripsy apparatus, wherein, utilize optical devices as survey sensor, measurement is arranged in two reference positions on the supporting construction or change in displacement or the angle between two reference axis changes, thereby the distortion that the supporting construction of impact wave source (3) is taken place when coupling detects.
China utility model patent CN9022479 discloses a kind of displacement meter that the rock displacement is carried out multimetering.This displacement meter is by the distortion box, and anchor head and erector are formed.Foil gauge on the distortion box internal cantilever beam is connected into full-bridge.On the distortion box box arm below each semi-girder, fixing amplifier correspondingly.
The utility model content
The purpose of this utility model provides the device for testing deformation amount that is used for X line machine column, to detect and to demonstrate the deflection of X line machine column particular location, for X line machine column design provides reference data accurately.
A purpose more of the present utility model provides the device for testing deformation amount that is used for X line machine column, it adopts integrated display module, avoided oscillograph or voltage table to show the deflection of X line machine column, show the deflection of column exactly with digital form, for the design of column provides guidance.
Another purpose of the present utility model provides the device for testing deformation amount that is used for X line machine column, and it can reduce the influence of temperature variation column deformation detection, further improves the accuracy that detects.
The utility model provides the device for testing deformation amount that is used for X line machine column, and it comprises a sensing unit, a processing unit and a display module.Sensing unit comprises the foil gauge on a plurality of X of being arranged on line machine columns; Processing unit comprises a plurality of signal amplifiers and a plurality of signal processor, and signal amplifier is connected with the output end signal of each foil gauge respectively, and signal processor is connected with each signal amplifier signal respectively.Display module is connected with the output end signal of each signal processor, with the deflection of the X line machine that demonstrates each foil gauge respectively and induced.
At another schematic embodiment of the device for testing deformation amount that is used for X line machine column, display module comprises one or more display boards, and described display board can demonstrate the deflection numerical value of the X line machine that each foil gauge induces by digital form.
At the another kind of schematically embodiment of the device for testing deformation amount that is used for X line machine column, each foil gauge comprises by four flow of metal silks and connects into a bridge circuit that foil gauge can also comprise a thermo-compensator that is in series with this bridge circuit.
The device for testing deformation amount of the X line machine column that the utility model provides, foil gauge in the sensing unit can be arranged on the corresponding site of column, each foil gauge induces the distortion at column diverse location place, after the treated cell processing of its output signal, demonstrate column deflection numerical value on can display module with each foil gauge corresponding position.
Use X line machine column device for testing deformation amount of the present utility model, can measure the deflection of each position of column in real time, overcome the shortcoming that can only record column bulk deformation amount in the prior art, for the design of X line machine column provides guidance.
The device for testing deformation amount of X line machine column of the present utility model has used integrated display module, can digital form accurately read the deflection numerical value of column corresponding position intuitively, has avoided using the large-scale display device of oscillograph or voltage table.
Description of drawings
To make clearer above-mentioned and other feature and advantage of the present utility model of those of ordinary skill in the art by describe preferred embodiment of the present utility model in detail with reference to accompanying drawing below, in the accompanying drawing:
Fig. 1 is the structural representation of existing X line machine;
Fig. 2 is the structural representation of a kind of exemplary embodiment of the utility model device for testing deformation amount of being used for X line machine column;
Fig. 3 is the structural representation of a kind of exemplary embodiment of foil gauge.
Label declaration
10 columns, 12 bulbs, 14 light concentrators, 18 patient supports
20 sensing units, 22 foil gauges, 23 flow of metal silks, 24 thermo-compensators
26 power supplies, 28 zero-potential points, 29 foil gauge output terminals, 30 processing units
32 signal amplifiers, 34 signal processors, 40 display modules, 42 display boards
Embodiment
Understand for technical characterictic, purpose and effect to utility model have more clearly, now contrast description of drawings embodiment of the present utility model, identical label is represented the part that structure is identical in each figure.
In this article, " schematically " expression " is served as example, example or explanation ", any diagram, the embodiment that is described to " schematically " in this article should be interpreted as a kind of preferred or have more the technical scheme of advantage.
Fig. 2 is a kind of exemplary embodiment that is used for the device for testing deformation amount of X line machine column, the part of only schematically drawing and having identified pick-up unit among the figure.As shown in Figure 2, the pick-up unit that is used for the deflection of X line machine column comprises a sensing unit 20, a processing unit 30 and a display module 40.Sensing unit 20 comprises repeats the individual foil gauge 22 that is arranged on the X line machine column 10 (part of only schematically having drawn column 10 among the figure).Processing unit 30 comprises signal amplifier 32 that is connected with the output signal of foil gauge 22 respectively and the signal processor 34 that is connected with each signal amplifier 32 signal respectively.Display module 40 is connected with the output signal of each signal processor 34, to demonstrate the distortion of the X line machine column 10 that each foil gauge 22 induces respectively.Display module 40 comprises a display board 42, and display board 42 can demonstrate the deflection numerical value of the X line machine column 10 that each foil gauge 22 induces by digital form.It will be understood by those skilled in the art that described " signal connection " can connect by modes such as electric signal or induced signals.
Only schematically draw the sensing unit 20 that comprises three foil gauges 22 among Fig. 2, with foil gauge 22 corresponding three signal amplifiers 32 and three signal processors 34, and with three signal processors, 34 corresponding display modules 40.It will be appreciated by those skilled in the art that, can be according to the needs of deflection test, adjustment is arranged on the quantity of foil gauge 22 on the column 10, adjust the quantity of signal amplifier 32 and signal processor 34 in the processing unit 30 corresponding simultaneously, make to show foil gauge 22 corresponding deflection numerical value with setting in the display board 42 of display module 40 with it.Foil gauge 22 is arranged in the implementation process of column 10, need be subjected to the position of stress greatly at column 10 with reference to the force analysis of column 10, and more foil gauge 22 need be set.
Fig. 3 is the structural representation of a kind of exemplary embodiment of foil gauge in the device for testing deformation amount.As shown in Figure 3, foil gauge 22 comprises four flow of metal silks 23 (only schematically having identified among the figure), 26, one zero-potential points 28 of 24, one power supplies of a thermo-compensator and a sensing unit output terminal 29.Four flow of metal silks 23 connect into a bridge circuit, and the bridge circuit that thermo-compensator 24 and four flow of metal silks 23 connect into is connected in series.Thermo-compensator 24 is used for shielding the influence that temperature variation is brought to bridge circuit.To the bridge circuit power supply, when bridge balance, as shown in the figure, a point and b point are zero with respect to the electric potential difference of zero-potential point 28 by power supply 26.When deformation took place column 10 (not drawing among the figure), the resistance of four flow of metal silks 23 changed, and makes a point and b point change with respect to the electric potential difference of zero-potential point 28, and this electromotive force extent is relevant with the deflection of foil gauge 22 placement columns 10.It will be appreciated by those skilled in the art that, though foil gauge 22 is the full-bridge circuits that comprise four flow of metal silks 23 among Fig. 3, foil gauge 22 can be to include only other circuit topologies such as the wheatstone bridge of one or two flow of metal silks 22 or half-bridge circuit equally.
Measure the deflection of column integral body at present by the side-play amount of X line image that machine becomes, can't learn the deflection of column particular location usually, make that the design of column will be through test repeatedly, both waste material was wasted time and energy again.Pick-up unit of the present utility model, can be as required, while is with reference to the computer artificial result of column, the flexible quantity that foil gauge is set, the spacing that is provided with between position and the foil gauge is set, thereby can measure the deflection of column particular location in real time, for the design of column provides guidance, significantly reduced the number of times of test.
Simultaneously, pick-up unit of the present utility model provides a display module that reads with digital form, the tester can accurately read the deflection numerical value of the relevant position that foil gauge is set on the column very intuitively, avoided the use of large-scale display device such as oscillograph or voltage table in the prior art, and the display result of oscillograph or voltage table is also directly perceived not as display module of the present utility model.Also used thermo-compensator in the foil gauge that the utility model uses, thereby shielded the influence of environment temperature test.
Be to be understood that, though this instructions is described according to each embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions only is for clarity sake, those skilled in the art should make instructions as a whole, technical scheme among each embodiment also can form other embodiments that it will be appreciated by those skilled in the art that through appropriate combination.
Above listed a series of detailed description only is specifying at feasibility embodiment of the present utility model; they are not in order to limiting protection domain of the present utility model, allly do not break away from equivalent embodiment or the change that the utility model skill spirit done and all should be included within the protection domain of the present utility model.
Claims (4)
1. a device for testing deformation amount comprises a sensing unit, it is characterized in that, also comprises a processing unit and a display module; Wherein,
Described sensing unit comprises a plurality of foil gauges that are arranged on the object to be checked;
Described processing unit comprises: a plurality of signal amplifiers that are connected with the output end signal of each described foil gauge respectively, and a plurality of signal processor that is connected with each described signal amplifier signal respectively;
Described display module is connected with the output end signal of each described signal processor, to demonstrate the deflection that each described foil gauge induces respectively.
2. device for testing deformation amount as claimed in claim 1 is characterized in that, described display module comprises one or a plurality of display board, and described display board demonstrates the numerical value of the deflection that each described foil gauge induces by digital form.
3. device for testing deformation amount as claimed in claim 1 is characterized in that, described foil gauge comprises by four flow of metal silks and connects into a bridge circuit.
4. device for testing deformation amount as claimed in claim 3 is characterized in that, described foil gauge also comprises a thermo-compensator that is in series with described bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020273799 CN201787919U (en) | 2010-07-28 | 2010-07-28 | Deformation detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020273799 CN201787919U (en) | 2010-07-28 | 2010-07-28 | Deformation detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787919U true CN201787919U (en) | 2011-04-06 |
Family
ID=43819878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020273799 Expired - Lifetime CN201787919U (en) | 2010-07-28 | 2010-07-28 | Deformation detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201787919U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075653A (en) * | 2014-04-10 | 2014-10-01 | 中北大学 | Strain capacity testing system based on orthogonal strain gauge array |
| CN104075654A (en) * | 2014-04-10 | 2014-10-01 | 中北大学 | Test system for dependent variables of high-speed small-target penetration gelatin body |
| CN108759652A (en) * | 2018-05-17 | 2018-11-06 | 大连理工大学 | A kind of curvature measurement method based on favour stone full-bridge principle |
-
2010
- 2010-07-28 CN CN 201020273799 patent/CN201787919U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075653A (en) * | 2014-04-10 | 2014-10-01 | 中北大学 | Strain capacity testing system based on orthogonal strain gauge array |
| CN104075654A (en) * | 2014-04-10 | 2014-10-01 | 中北大学 | Test system for dependent variables of high-speed small-target penetration gelatin body |
| CN108759652A (en) * | 2018-05-17 | 2018-11-06 | 大连理工大学 | A kind of curvature measurement method based on favour stone full-bridge principle |
| CN108759652B (en) * | 2018-05-17 | 2019-06-28 | 大连理工大学 | A kind of curvature measurement method based on favour stone full-bridge principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110406 |