CN202582479U - Deformation monitoring device - Google Patents
Deformation monitoring device Download PDFInfo
- Publication number
- CN202582479U CN202582479U CN 201220149398 CN201220149398U CN202582479U CN 202582479 U CN202582479 U CN 202582479U CN 201220149398 CN201220149398 CN 201220149398 CN 201220149398 U CN201220149398 U CN 201220149398U CN 202582479 U CN202582479 U CN 202582479U
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- deformation monitoring
- monitoring device
- displacement transducer
- pyrotenax
- iron core
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- Expired - Lifetime
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a deformation monitoring device. The deformation monitoring device comprises: a displacement sensor which is connected with an object to be detected and outputs detection data through a high temperature resistant cable, wherein an adhesive material in the displacement sensor is a high temperature resistant bonding material; a modem which receives detection data through the high temperature resistant cable and carries out processing; and the high temperature resistant cable whose one end is connected with the displacement sensor and whose another end is connected with the modem, wherein the high temperature resistant cable is made of high temperature resistant materials. Through using the above deformation monitoring device, carrying out deformation monitoring on a structure body in an environment beyond a normal temperature can be realized.
Description
Technical field
The utility model relates to construction work detection technique field, particularly a kind of deformation monitoring device.
Background technology
In current construction work detection technique field, often need carry out deformation monitoring to various structures (for example, building), promptly through detection, realize monitoring to the distortion of various structures to related physical quantity or correlation parameter.
In the prior art, use deformation monitoring device to realize above-mentioned distortion monitoring usually to structure.Yet presently used deformation monitoring device generally all can only use owing to the restriction of working mechanism at normal temperatures.For example, generally all use DC-DC LVDT displacement transducer (DVDT) that object under test is detected in the deformation monitoring device of the prior art.And with respect to ac-excited type displacement transducer, the structure more complicated of DVDT needs to convert continuous-current excitation to AC signal earlier usually, just can make the displacement transducer operate as normal then; And as DVDT during with the output of detected data, could export after also need the AC signal that DVDT exported being converted to direct current signal, above-mentioned transfer process is called " modulation-demodulation " process.Because employed components and parts generally all can only if surpassed its operating temperature range, then possibly break down in operate as normal under the normal temperature condition in the above-mentioned deformation monitoring device, perhaps quit work.Therefore, deformation monitoring device of the prior art generally all can't be applicable under the situation of hyperthermy.And if all components and parts in the deformation monitoring device are all replaced to the components and parts that can under the hyperthermy environment, use, then can improve the production cost of this deformation monitoring device greatly, and the technical difficulty that realizes is very big, realize that cost is also very high.
Owing to have above-mentioned problem in the deformation monitoring device of the prior art, can't under the hyperthermy environment, use, therefore need to propose a kind of can under the hyperthermy environment, the use and the lower deformation monitoring device of production cost.
The utility model content
In view of this, the utility model provides a kind of deformation monitoring device, thereby can under the hyperthermy environment, be out of shape monitoring to structure.
For achieving the above object, the technical scheme of the utility model is achieved in that
A kind of deformation monitoring device, said deformation monitoring device comprises:
Link to each other with object under test and the displacement transducer through the Pyrotenax output test data; Binding material in the said displacement transducer is resistant to elevated temperatures binding material;
Receive the modulator-demodular unit that detects data and handle through said Pyrotenax;
The Pyrotenax that one end is connected with said displacement transducer and the other end is connected with said modulator-demodular unit; Said Pyrotenax is processed by exotic material.
Said displacement transducer is a DC-DC LVDT displacement transducer.
Said DC-DC LVDT displacement transducer comprises: the cylindrical tube of hollow, be arranged on the long helically coiled coil in the said cylindrical shell, two measuring staffs that are arranged on the columnar iron core on the said long helically coiled coil axis and are separately positioned on the iron core two ends;
Wherein, the center at said cylindrical shell two ends is provided with through hole;
One end of said two measuring staffs stretches out from the through hole at said cylindrical shell two ends respectively, and said measuring staff and iron core can move along the axis of said long helically coiled coil.
Said long helically coiled coil comprises: primary coil, coaxial and be separately positioned on first secondary coil and the second subprime coil at said primary coil two ends with said primary coil.
The two ends of said primary coil are connected with the oscillation power that can stablize the output AC electric current.
Said two measuring staffs are bonded in the two ends of said iron core through resistant to elevated temperatures binding material.
Said resistant to elevated temperatures binding material is:
Ke44 adhesive glue, happy safe 620 adhesive glue or happy safe 648 adhesive glue.
Said Pyrotenax is:
ZRA (C)-vv flame retardant cable, twisted polyethylene cable or silica gel high-temperature cable.
Said iron core is processed by high permeability materials; Said measuring staff is processed by non-magnet_conductible material.
To sum up can know, a kind of deformation monitoring device is provided in the utility model.In said deformation monitoring device, mainly comprise: modulator-demodular unit, displacement transducer and Pyrotenax with resistant to elevated temperatures binding material.Because the binding material in the displacement transducer is resistant to elevated temperatures binding material; And employed cable also is a Pyrotenax; Therefore even be placed under the environment of hyperthermy also can operate as normal for said displacement transducer and Pyrotenax, thereby can under the hyperthermy environment, be out of shape monitoring to structure; And the production cost of above-mentioned deformation monitoring device is also lower.
Description of drawings
Fig. 1 is the structural representation of the deformation monitoring device in the utility model.
Fig. 2 is the diagrammatic cross-section of the DVDT in the utility model.
Fig. 3 is the front schematic view of the DVDT in the utility model.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model are expressed clearlyer, the utility model is remake further detailed explanation below in conjunction with accompanying drawing and specific embodiment.
The utility model provides a kind of deformation monitoring device; In this deformation monitoring device; Mainly comprise: modulator-demodular unit, displacement transducer and Pyrotenax with resistant to elevated temperatures binding material, thus can under the hyperthermy environment, be out of shape monitoring to structure.
Fig. 1 is the structural representation of the deformation monitoring device in the utility model.As shown in Figure 1, in the deformation monitoring device in the utility model, mainly comprise:
Link to each other with object under test and the displacement transducer 11 through Pyrotenax 12 output test datas; Binding material in the said displacement transducer 11 is resistant to elevated temperatures binding material;
Receive the modulator-demodular unit 13 that detects data and handle through said Pyrotenax 12;
The Pyrotenax 12 that one end is connected with said displacement transducer 11 and the other end is connected with said modulator-demodular unit 13; Said Pyrotenax 12 is processed by exotic material.
Preferable, in the specific embodiment of the utility model, said displacement transducer 11 can be DC-DC LVDT displacement transducer (DVDT).
Fig. 2 is the diagrammatic cross-section of the DVDT in the utility model.Fig. 3 is the front schematic view of the DVDT in the utility model.As shown in Figures 2 and 3; In the utility model, said DVDT comprises: the cylindrical tube 110 of hollow, be arranged on the long helically coiled coil 111 in the said cylindrical shell 110, two measuring staffs 113 that are arranged on the columnar iron core 112 on said long helically coiled coil 111 axis and are separately positioned on iron core 112 two ends;
Wherein, the center at said cylindrical shell 110 two ends is provided with through hole 114;
One end of said two measuring staffs 113 stretches out from the through hole 114 at said cylindrical shell 110 two ends respectively, and said measuring staff 113 can move along the axis of said long helically coiled coil 111 with iron core 112.
In addition; In the specific embodiment of the utility model, said long helically coiled coil 111 can comprise: primary coil 1110, coaxial and be separately positioned on first secondary coil 1111 and the second subprime coil 1112 at said primary coil 1110 two ends with said primary coil 1110.
In addition, the two ends of primary coil 1110 are connected with the oscillation power that can stablize the output AC electric current, and the alternating current of this stable output will be set up a stable alternating magnetic field in above-mentioned long helically coiled coil.Simultaneously, the end with two secondary coils of said primary coil 1110 coaxial settings will induce two alternating electromotive forces.When iron core 112 is positioned at the center of primary coil 1110, two electromotive force equal and opposite in directions that secondary coil induces, therefore, the output voltage of two secondary coils will be zero.At this moment, can be with the position at iron core 112 place as initial point (or being called zero point).
Because measuring staff 113 directly is connected with object under test; Therefore; When the displacement of long helically coiled coil 111 axis directions in edge takes place object under test, corresponding displacement also will take place in measuring staff 113, thereby drive and the identical displacement of measuring staff 113 direct-connected iron cores 112 generations.For example; When iron core 112 is driven by measuring staff 113; Along long helically coiled coil 111 axis directions to a side, for example, when move on the right shown in Fig. 2; The coupling condition that is positioned at first secondary coil on primary coil 1110 right sides will improve, so the induction electric of this first secondary coil 1111 will definitely increase; Meanwhile, the induction electric that is positioned at the second subprime coil 1112 in primary coil 1110 left sides will definitely reduce.And along with moving of measuring staff 113, the induction electromotive force that first secondary coil 1111 and second subprime coil are exported and the displacement of iron core 112 are linear.Therefore; Can (for example convert the variable quantity of the moved electromotive force of two secondary coils to corresponding electric signal; The audio frequency output voltage), and this electric signal is demodulated to the direct current tempolabile signal through modulator-demodular unit 13, can calculates the accurate displacement of learning iron core 112 and measuring staff 113 according to this direct current tempolabile signal then; Thereby know the accurate displacement of object under test, thereby finally accomplished detection to the displacement of object under test.
In the preferred embodiment of the utility model, said two measuring staffs 113 are bonded in the two ends of said iron core 112 through resistant to elevated temperatures binding material.Said resistant to elevated temperatures binding material can be: ke44 adhesive glue, happy safe (1octite) 620 adhesive glue or happy safe (1octite) 648 adhesive glue etc.
Among the DVDT in the prior art, generally use 502 adhesive glue as above-mentioned binding material.Because the cementation power of this 502 adhesive glue under the hyperthermy environment will descend greatly, thereby can't measuring staff be bonded on the iron core securely, thereby make whole DVDT in the hyperthermy environment, normally to use.
And in the utility model; Owing to used resistant to elevated temperatures binding material that measuring staff is bonded on the iron core; Even therefore be under the hyperthermy environment, also can measuring staff be bonded on the iron core securely, thereby make whole DVDT in the hyperthermy environment, normally to use.
In addition, in the preferred embodiment of the utility model, said Pyrotenax 12 can be: ZRA (C)-vv flame retardant cable, twisted polyethylene cable (specification WDZN-KYJY) or silica gel high-temperature cable (FF46).
In the prior art, the cable of employed connection DVDT and modulator-demodular unit is generally the CFGG cable in the deformation monitoring device, and this cable can only can't normally use in the hyperthermy environment in operate as normal under the normal temperature condition.And in the utility model, owing to used Pyrotenax, even therefore be under the hyperthermy environment, this Pyrotenax also can operate as normal, thereby makes whole deformation monitoring device also can in the hyperthermy environment, normally use.
In addition, in the specific embodiment of the utility model, said iron core 112 is processed by high permeability materials.Said measuring staff 113 is processed by non-magnet_conductible material.
Preferable, in the specific embodiment of the utility model, the scope of said hyperthermy is :-20 ℃～120 ℃.
In addition, the measuring accuracy of said deformation monitoring device can reach 0.1 millimeter (mm), and displacement resolution can reach 0.01mm.
To sum up can know, in the embodiment of the utility model, propose above-mentioned displacement transducer.In above-mentioned displacement transducer; Because the binding material in the displacement transducer is resistant to elevated temperatures binding material; And employed cable also is a Pyrotenax; Therefore, thereby can be implemented under the hyperthermy environment structure is out of shape monitoring, and can instructs subsequent operations such as the engineering construction and the acceptance of work according to being out of shape monitor data even be placed under the environment of hyperthermy also can operate as normal for said displacement transducer and Pyrotenax.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (9)
1. a deformation monitoring device is characterized in that, this deformation monitoring device comprises:
Link to each other with object under test and the displacement transducer through the Pyrotenax output test data; Binding material in the said displacement transducer is resistant to elevated temperatures binding material;
Receive the modulator-demodular unit that detects data and handle through said Pyrotenax;
The Pyrotenax that one end is connected with said displacement transducer and the other end is connected with said modulator-demodular unit; Said Pyrotenax is processed by exotic material.
2. deformation monitoring device according to claim 1 is characterized in that:
Said displacement transducer is a DC-DC LVDT displacement transducer.
3. deformation monitoring device according to claim 2; It is characterized in that said DC-DC LVDT displacement transducer comprises: the cylindrical tube of hollow, be arranged on the long helically coiled coil in the said cylindrical shell, two measuring staffs that are arranged on the columnar iron core on the said long helically coiled coil axis and are separately positioned on the iron core two ends;
Wherein, the center at said cylindrical shell two ends is provided with through hole;
One end of said two measuring staffs stretches out from the through hole at said cylindrical shell two ends respectively, and said measuring staff and iron core can move along the axis of said long helically coiled coil.
4. deformation monitoring device according to claim 3 is characterized in that, said long helically coiled coil comprises: primary coil, coaxial and be separately positioned on first secondary coil and the second subprime coil at said primary coil two ends with said primary coil.
5. deformation monitoring device according to claim 4 is characterized in that:
The two ends of said primary coil are connected with the oscillation power that can stablize the output AC electric current.
6. deformation monitoring device according to claim 3 is characterized in that:
Said two measuring staffs are bonded in the two ends of said iron core through resistant to elevated temperatures binding material.
7. according to claim 1 or 6 described deformation monitoring devices, it is characterized in that said resistant to elevated temperatures binding material is:
Ke44 adhesive glue, happy safe 620 adhesive glue or happy safe 648 adhesive glue.
8. deformation monitoring device according to claim 1 is characterized in that, said Pyrotenax is:
ZRA (C)-vv flame retardant cable, twisted polyethylene cable or silica gel high-temperature cable.
9. deformation monitoring device according to claim 3 is characterized in that:
Said iron core is processed by high permeability materials; Said measuring staff is processed by non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149398 CN202582479U (en) | 2012-04-10 | 2012-04-10 | Deformation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149398 CN202582479U (en) | 2012-04-10 | 2012-04-10 | Deformation monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202582479U true CN202582479U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220149398 Expired - Lifetime CN202582479U (en) | 2012-04-10 | 2012-04-10 | Deformation monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202582479U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633618A (en) * | 2013-10-26 | 2014-03-12 | 安徽龙波电气有限公司 | Electrified on-line monitoring and protecting device for intelligent high-voltage vacuum circuit breaker |
| CN104748664A (en) * | 2015-03-13 | 2015-07-01 | 南华大学 | Rock-soil mass interior displacement measuring system |
| CN106895867A (en) * | 2017-03-30 | 2017-06-27 | 中国科学院工程热物理研究所 | The thermal protection structure of tangent displacement sensor under a kind of hot environment |
| CN112129215A (en) * | 2020-09-17 | 2020-12-25 | 武汉大学 | Tunnel physical simulation test full-section convergence deformation rapid measurement device and method |
-
2012
- 2012-04-10 CN CN 201220149398 patent/CN202582479U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633618A (en) * | 2013-10-26 | 2014-03-12 | 安徽龙波电气有限公司 | Electrified on-line monitoring and protecting device for intelligent high-voltage vacuum circuit breaker |
| CN104748664A (en) * | 2015-03-13 | 2015-07-01 | 南华大学 | Rock-soil mass interior displacement measuring system |
| CN104748664B (en) * | 2015-03-13 | 2017-10-24 | 南华大学 | A kind of Rock And Soil internal displacement system for measuring quantity |
| CN106895867A (en) * | 2017-03-30 | 2017-06-27 | 中国科学院工程热物理研究所 | The thermal protection structure of tangent displacement sensor under a kind of hot environment |
| CN106895867B (en) * | 2017-03-30 | 2024-01-30 | 中国科学院工程热物理研究所 | Thermal protection structure of contact type displacement sensor under high-temperature environment |
| CN112129215A (en) * | 2020-09-17 | 2020-12-25 | 武汉大学 | Tunnel physical simulation test full-section convergence deformation rapid measurement device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190520 Address after: Room 307, Building 5, 33 Xitucheng Road, Haidian District, Beijing 100088 Co-patentee after: MCC Central Research Institute of Building and Construction Co., Ltd. Patentee after: China Metallurgical inspection and Certification Co., Ltd. Address before: 100088 West Tucheng Road, Haidian District, Beijing, No. 33 Patentee before: MCC Central Research Institute of Building and Construction Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |