CN204831601U - Adopt ablation temperature sensor of membrane technology - Google Patents
Adopt ablation temperature sensor of membrane technology Download PDFInfo
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- CN204831601U CN204831601U CN201520524651.0U CN201520524651U CN204831601U CN 204831601 U CN204831601 U CN 204831601U CN 201520524651 U CN201520524651 U CN 201520524651U CN 204831601 U CN204831601 U CN 204831601U
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Abstract
The utility model discloses an adopt ablation temperature sensor of membrane technology, stick, shell, circuit board and cable are surveyed including ablating, in the shell was located to one end that ablate to survey the stick, in the shell is located to the circuit board, and circuit board connecting cable, the cable extended to the shell outside, the survey stick of ablating comprises insulating tube, surperficial coating film layer, interior core metal line, preceding end conducting resin, insulating tight loop, coating film lead wire and surface protective coatings, the utility model discloses a plating the upper story metal film at the insulating tube outer wall, through measuring this electromotive force magnitude of voltage, can acquireing heat shield surface ablation temperature data, small, light in weight, precision are high, destroy the heat shield little, production simple process, the cost control of being convenient for, possible: standardization, seriation, miniaturization adopt the ablation thickness sensor's of the same technology appearance unanimous, and the product seriation of being convenient for reduces the spare part stock.
Description
Technical field
The utility model relates to aerospace measurement apparatus field, specifically a kind of ablation temperature sensor adopting membrane process.
Background technology
So-called ablation, when referring to guided missile and aircraft atmospheric reentry under hot-fluid effect, the material consumption phenomenon of the solid surface caused by thermochemistry and mechanical process.
Ablator, also can be described as heat shield, is mainly used in nose of missile, the manned return capsule solar heat protection large end, space shuttle titles etc.The physical and chemical changes such as this material can decompose under hot-fluid effect, melt, evaporate, distil, erosion, a large amount of heat is taken away in quality consumption by means of material surface, the a large amount of heat energy produced during to cool aircraft atmospheric reentry, the fatal damages that prevention hot-fluid imports aircraft interior into and causes.
Recession thickness is an important parameter of the reentry vehicle design in aerospace engineering.Necessary ablator thickness is to ensureing that the safety of equipment and personnel in aircraft is very important.And reduce the thickness of ablator, be conducive to again the net weight alleviating aircraft, can useful load be improved.
Ablation temperature sensor is generally used for the situation of change of the ablation temperature of the different parts of experiments of measuring reentry vehicle, provides the ablation temperature data improved needed for heat shield to Flight Vehicle Design teacher.
Common ablative thickness sensor type has: thermojunction type, optical fiber type, infrared optics formula.Wherein, thermopair thinks that the product of two wires modes is main.A kind of ablation temperature sensor adopting membrane process that the utility model proposes.Its major advantage is consistent with the external form of the ablative thickness sensor adopting same process, is convenient to the seriation of product, reduces parts stock.
Utility model content
The purpose of this utility model is to provide a kind of ablation temperature sensor adopting membrane process, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of ablation temperature sensor adopting membrane process, comprise ablation and survey rod, shell, circuit board and cable, one end that rod is surveyed in described ablation is located in shell, circuit board is located in shell, and circuit board stube cable, cable extends to outer side, described ablation surveys rod by insulation tube, plated surface rete, inner core metal wire, front end conducting resinl, insulation tight loop, plated film lead-in wire and coating for surface protection are formed, described plated surface rete is plated on the outer wall of insulation tube, inner core metal wire is located in insulation tube, inner core metal wire is electrically connected with plated surface rete by the front end conducting resinl being located at insulation tube front end, described plated surface rete and inner core metal wire adopt different metal to make, therefore a thermopair is formed, plated film lead-in wire is electrically connected with plated surface rete, described insulation tight loop is located at the tail end of insulation tube, and the tail end of insulation tube, by insulation tight loop connected with outer casing, plays fixing effect, described coating for surface protection is applied to the surface of plated surface rete, described circuit board is provided with signal amplifier, analog to digital converter A, thermistor, amplifying circuit, analog to digital converter B, microprocessor and analog to digital converter C, described plated film lead-in wire and inner core metal wire connection signal amplifier, signal amplifier connection mode number converter A, described thermistor connects amplifying circuit, amplifying circuit connection mode number converter B, described analog to digital converter B is all connected microprocessor with analog to digital converter A, described microprocessor connection mode number converter C, and microprocessor is by connecting stabilized voltage supply, stabilized voltage supply connects external power source by cable.
As further program of the utility model: described inner core metal wire adopts platinum filament or platinum-rhodium wire or tungsten filament or molybdenum filament to make.
As the utility model further scheme: described insulation tight loop adopts epoxy glass cloth laminated board or teflon or polysulfones to make.
Compared with prior art, the beneficial effects of the utility model are: the utility model is by plating layer of metal film at insulation tube outer wall, an inner core metal wire is inserted in insulation tube, outer wall plated film and internal core wire are different metal materials, form a thermopair, in ablation process, heat shield outside surface and the inner temperature difference will produce thermocouple electromotive force.By measuring this EMF voltage value, heat shield ablated surface temperature data can be obtained, volume is little, lightweight, precision is high, destroy little to heat shield, production technology is simple, is convenient to cost control, can accomplish: standardization, seriation, miniaturization, adopt the external form of the ablative thickness sensor of same process consistent, be convenient to product seriation, reduce parts stock.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation adopting the ablative thickness sensor of membrane process of the utility model.
Fig. 2 is a kind of structural representation adopting ablation survey rod in the ablative thickness sensor of membrane process of the utility model.
Fig. 3 is a kind of circuit diagram adopting the ablation temperature sensor of membrane process of the utility model.
In figure: 1-insulation tube, 2-plated surface rete, 3-inner core metal wire, 4-front end conducting resinl, 5-insulation tight loop, 6-plated film lead-in wire, 7-coating for surface protection, 11-ablation survey rod, 12-shell, 13-circuit board, 14-cable, 21-signal amplifier, 22-analog to digital converter A, 23-thermistor, 24-amplifying circuit, 25-analog to digital converter B, 26-microprocessor, 27-stabilized voltage supply, 28-analog to digital converter C.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 ~ 3, in the utility model embodiment, a kind of ablation temperature sensor adopting membrane process, comprise ablation and survey rod 11, shell 12, circuit board 13 and cable 14, one end that rod 11 is surveyed in described ablation is located in shell 12, circuit board 13 is located in shell 12, and circuit board 13 stube cable 14, cable 14 extends to outside shell 12, described ablation surveys rod 11 by insulation tube 1, plated surface rete 2, inner core metal wire 3, front end conducting resinl 4, insulation tight loop 5, plated film lead-in wire 6 and coating for surface protection 7 are formed, described plated surface rete 2 is plated on the outer wall of insulation tube 1, inner core metal wire 3 is located in insulation tube 1, inner core metal wire 3 is electrically connected with plated surface rete 2 by the front end conducting resinl 4 being located at insulation tube 1 front end, described plated surface rete 2 adopts different metal to make with inner core metal wire 3, therefore a thermopair is formed, plated film lead-in wire 6 is electrically connected with plated surface rete 2, described insulation tight loop 5 is located at the tail end of insulation tube 1, and the tail end of insulation tube 1, by insulation tight loop 5 connected with outer casing 12, plays fixing effect, described coating for surface protection 7 is applied to the surface of plated surface rete 2, described circuit board 13 is provided with signal amplifier 21, analog to digital converter A22, thermistor 23, amplifying circuit 24, analog to digital converter B25, microprocessor 26 and analog to digital converter C28, described plated film lead-in wire 6 and inner core metal wire 3 connection signal amplifier 21, signal amplifier 21 connection mode number converter A22, described thermistor 23 connects amplifying circuit 24, amplifying circuit 24 connection mode number converter B25, described analog to digital converter B25 is all connected microprocessor 26 with analog to digital converter A22, described microprocessor 26 connection mode number converter C28, and microprocessor 26 is by connecting stabilized voltage supply 27, stabilized voltage supply 27 connects external power source by cable 14.
Described inner core metal wire 3 adopts platinum filament or platinum-rhodium wire or tungsten filament or molybdenum filament to make.
Described insulation tight loop 5 adopts epoxy glass cloth laminated board or teflon or polysulfones to make.
Principle of work of the present utility model is: the utility model proposes a kind of ablation temperature sensor adopting thin-film technique to manufacture; this sensor comprises: temperature surveys rod 11, shell 12, circuit board 13, cable 14; temperature wherein surveys the critical components that rod is this sensor, and composition material comprises: insulation tube 1, plated surface rete 2, inner core metal wire 3, front end conducting resinl 4, insulation tight loop 5, plated film lead-in wire 6, coating for surface protection 7.The utility model has used for reference the production technology of metalfilmresistor, by the measurement of its design ap-plication in ablation temperature.Implementation method is: plate layer of metal resistive film 2 at insulation tube 1 outer wall, an inner core metal wire 3 is inserted in insulation tube, inner core metal wire 3 and outer wall plated film 2 are electrically connected by insulation tube front end conducting resinl 4, outer wall plated film 2 and internal core wire 3 are different metal materials, form a thermopair.The afterbody that temperature surveys rod 11 is designed with an insulation tight loop 5, for stationary heat galvanic couple and by itself and casing insulation.The surface that temperature surveys the outer wall plated film 2 of rod 11 needs coating layer of surface protective finish 7.This protective finish 7 is front for being installed to heat shield (general assembly) at product, protects outer wall plated film 2.This protective finish 7 should be soluble in organic solvent, all to wash when product final assemble.
Fig. 3 is the metering circuit adopting heat of ablation galvanic couple.In ablation process, the plasma that heat shield surface is formed and carburization zone are the good conductor of electricity, and heat shield outside surface and the inner temperature difference will produce thermocouple electromotive force.By measuring this EMF voltage value, heat shield ablated surface temperature data can be obtained.In Fig. 3, the electromotive force that heat of ablation galvanic couple exports by thermopair signal preamplifier 21 is exported to analog to digital converter A22 and is converted digital signal to after amplifying.Thermistor (platinum resistance) 23 for measuring the temperature of reentry vehicle inside, with the temperature difference of Compensative thermoelectric couple.Thermistor 23 is through sampling and amplifying circuit 24, and signal is exported to analog to digital converter 25B and converted digital signal to.Microprocessor 26 obtains the data of thermopair and thermistor, produces afterwards as calculated and exports data.Microprocessor can also produce analog signal output by domination number weighted-voltage D/A converter C28 simultaneously.Stabilized voltage supply 27 is for converting the voltage needed for each functional module of circuit to by supply voltage.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (3)
1. one kind adopts the ablation temperature sensor of membrane process, it is characterized in that, comprise ablation and survey rod, shell, circuit board and cable, one end that rod is surveyed in described ablation is located in shell, circuit board is located in shell, and circuit board stube cable, cable extends to outer side, described ablation surveys rod by insulation tube, plated surface rete, inner core metal wire, front end conducting resinl, insulation tight loop, plated film lead-in wire and coating for surface protection are formed, described plated surface rete is plated on the outer wall of insulation tube, inner core metal wire is located in insulation tube, inner core metal wire is electrically connected with plated surface rete by the front end conducting resinl being located at insulation tube front end, described plated surface rete and inner core metal wire adopt different metal to make, plated film lead-in wire is electrically connected with plated surface rete, described insulation tight loop is located at the tail end of insulation tube, and the tail end of insulation tube is by insulation tight loop connected with outer casing, described coating for surface protection is applied to the surface of plated surface rete, described circuit board is provided with signal amplifier, analog to digital converter A, thermistor, amplifying circuit, analog to digital converter B, microprocessor and analog to digital converter C, described plated film lead-in wire and inner core metal wire connection signal amplifier, signal amplifier connection mode number converter A, described thermistor connects amplifying circuit, amplifying circuit connection mode number converter B, described analog to digital converter B is all connected microprocessor with analog to digital converter A, described microprocessor connection mode number converter C, and microprocessor is by connecting stabilized voltage supply, stabilized voltage supply connects external power source by cable.
2. the ablation temperature sensor of employing membrane process according to claim 1, is characterized in that, described inner core metal wire adopts platinum filament or platinum-rhodium wire or tungsten filament or molybdenum filament to make.
3. the ablation temperature sensor of employing membrane process according to claim 1, is characterized in that, described insulation tight loop adopts epoxy glass cloth laminated board or teflon or polysulfones to make.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520524651.0U CN204831601U (en) | 2015-07-19 | 2015-07-19 | Adopt ablation temperature sensor of membrane technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520524651.0U CN204831601U (en) | 2015-07-19 | 2015-07-19 | Adopt ablation temperature sensor of membrane technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444661A (en) * | 2015-12-25 | 2016-03-30 | 陕西电器研究所 | Metal sputtering thin film technology-based ablation sensor |
| CN114485374A (en) * | 2022-03-22 | 2022-05-13 | 中国电子科技集团公司第四十九研究所 | Broken-through ablation sensor for bow-shaped printing sheet |
-
2015
- 2015-07-19 CN CN201520524651.0U patent/CN204831601U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444661A (en) * | 2015-12-25 | 2016-03-30 | 陕西电器研究所 | Metal sputtering thin film technology-based ablation sensor |
| CN114485374A (en) * | 2022-03-22 | 2022-05-13 | 中国电子科技集团公司第四十九研究所 | Broken-through ablation sensor for bow-shaped printing sheet |
| CN114485374B (en) * | 2022-03-22 | 2023-09-05 | 中国电子科技集团公司第四十九研究所 | Cut-through ablation sensor for bow-shaped printed sheet |
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Effective date of registration: 20160205 Address after: 100176, Beijing Economic Development Zone, No. two, No. 29, Hai Lu, No. 7, building 8 Patentee after: BEIJING JINMAIJIE TECHNOLOGY Co.,Ltd. Address before: 100076 Beijing City, Fengtai District Dahongmen South East Highland Road No. 1 building 38 No. 428 Patentee before: Zhang Changjin |
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Address after: Building 7, Yard 29, Kechuang 7th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing 100176 Patentee after: Beijing Jinmaijie Technology Co.,Ltd. Address before: 8th Floor, Building 7, Yard 29, Jinghai 2nd Road, Beijing Economic Development Zone, 100176 Patentee before: BEIJING JINMAIJIE TECHNOLOGY Co.,Ltd. |