CN202453107U - Platinum resistor for measurement - Google Patents
Platinum resistor for measurement Download PDFInfo
- Publication number
- CN202453107U CN202453107U CN2012200466686U CN201220046668U CN202453107U CN 202453107 U CN202453107 U CN 202453107U CN 2012200466686 U CN2012200466686 U CN 2012200466686U CN 201220046668 U CN201220046668 U CN 201220046668U CN 202453107 U CN202453107 U CN 202453107U
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- China
- Prior art keywords
- winding
- inner core
- platinum resistor
- measurement
- spiral groove
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- 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.)
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Abstract
A platinum resistor for measurement solves the problems that existing platinum resistors for measurement is large in processing difficulty and size, low in sensitivity and insulating strength, large in power consumption and the like. The platinum resistor comprises a leading wire, an inner core, a winding and a protection layer. The inner core is a hollow high alumina porcelain tube, two ends of the winding are connected with the leading line, the protection layer is covered outside the inner core and the winding and the special point is that a spiral groove is arranged on the outer surface of the inner core, and the winding is wound in the spiral groove; and an insulation layer is further arranged on the outer surface of the inner core. The platinum resistor for measurement has the advantages that one-time integrated sintering technology is utilized, the production processes are simplified, the spiral groove is arranged on the outer surface of the inner core, so that winding is facilitated, diameter of the platinum resistor is decreased, the sensitivity of the platinum resistor is improved, and the response time is within 4 milliseconds; the high density insulation layer is arranged on the outer surface of the winding, insulation performance and anti-corrosion capacity of the platinum resistor are enhanced, accordingly, the service life is prolonged, and the power consumption is reduced to the lowest.
Description
Technical field
The utility model belongs to a kind of sensing element, and RTD is used in particularly a kind of measurement.
Background technology
Measurement is the temperature-sensing element in wind speed, the air measuring instrument with RTD.Measurement of the prior art is made up of lead-in wire, winding, inner core and protective seam with RTD.Wherein, lead-in wire and winding are made with platinum, and winding is a spiral-shaped thin-film, or is entwined according to certain spacing with platinum filament, and inner core is the ceramic hollow pipe, and winding is wrapped on the inner core, and its two ends are connected with lead-in wire, and protective seam is the glaze layer, forms through the secondary high temperature sintering.The subject matter that this RTD exists is, difficulty of processing is big, and serviceable life is short, and volume is big, and sensitivity is low, and the response time is long, and shake-proof ability is poor, and dielectric strength is low, and power consumption is big, thereby has limited its application.
Summary of the invention
The technical matters that the utility model will solve is; Overcome the existing problems such as the difficulty of processing that exists with RTD is big, volume is big, sensitivity is low, dielectric strength is low, power consumption is big of measuring, provide a kind of and process the measurement simple, that volume is little, highly sensitive, dielectric strength is high, power consumption is little, the tension shockproof properties is good and use RTD.
The utility model comprises lead-in wire, inner core, winding and protective seam; Described inner core is hollow high-alumina ceramic tube; The two ends of winding are connected with lead-in wire, and protective seam is wrapped in the outside of inner core and winding, and its special character is; On the outside surface of inner core, spiral groove is arranged, winding is wrapped in the spiral groove.
On the surface of winding, also has a layer insulating, to improve the dielectric strength of RTD.
The advantage of the utility model is that manufacture craft is simple, adopts the Integratively sintering process; Simplified production process, and on the outside surface of inner core, spiral groove has been set, both be convenient to twine; Be easy to control spacing again, also reduced the diameter of RTD, improved the sensitivity of RTD; Its response time and helps to improve the shock resistance of RTD in 4ms; The high density insulation course is set on the surface of winding, has not only improved the insulating property and the anti-corrosion capability of RTD, also improved the tension and the shake-proof ability of RTD, thereby prolonged serviceable life, and make the power consumption under its same environment drop to minimum.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Shown in accompanying drawing, the utility model comprises lead-in wire 1, inner core 2, winding 4 and protective seam 3, and described inner core 2 is hollow high-alumina ceramic tube, on the outside surface of inner core 2, spiral groove is arranged, and winding 4 is wrapped in the spiral groove; Described winding 4 usefulness platinum filament coilings form, and on the surface of winding 4, also have a layer insulating 5, to improve the dielectric strength of RTD; The two ends of winding 4 are connected with lead-in wire 1, and its tie point is embedded in the endoporus at inner core 2 two ends, makes tie point more solid and reliable, increase tensile strength and shake-proof ability; Described protective seam 3 is the glaze layer, and protective seam 3 is wrapped in the outside of inner core 2 and winding 4, forms through once sintered.
Claims (2)
1. RTD is used in a measurement; It comprises lead-in wire, inner core, winding and protective seam, and described inner core is hollow high-alumina ceramic tube, and the two ends of winding are connected with lead-in wire; Protective seam is wrapped in the outside of inner core and winding; It is characterized in that on the outside surface of inner core, spiral groove being arranged, winding is wrapped in the spiral groove.
2. RTD is used in measurement according to claim 1, it is characterized in that, on the surface of winding, also has a layer insulating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200466686U CN202453107U (en) | 2012-02-14 | 2012-02-14 | Platinum resistor for measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200466686U CN202453107U (en) | 2012-02-14 | 2012-02-14 | Platinum resistor for measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453107U true CN202453107U (en) | 2012-09-26 |
Family
ID=46868962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200466686U Expired - Fee Related CN202453107U (en) | 2012-02-14 | 2012-02-14 | Platinum resistor for measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202453107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033279A (en) * | 2012-12-17 | 2013-04-10 | 重庆材料研究院 | Transparent wire winding platinum resistor temperature sensor and manufacturing method thereof |
-
2012
- 2012-02-14 CN CN2012200466686U patent/CN202453107U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103033279A (en) * | 2012-12-17 | 2013-04-10 | 重庆材料研究院 | Transparent wire winding platinum resistor temperature sensor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20140214 |