CN211291781U - Single-core dual-redundancy temperature measuring equipment - Google Patents
Single-core dual-redundancy temperature measuring equipment Download PDFInfo
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- CN211291781U CN211291781U CN201921853836.0U CN201921853836U CN211291781U CN 211291781 U CN211291781 U CN 211291781U CN 201921853836 U CN201921853836 U CN 201921853836U CN 211291781 U CN211291781 U CN 211291781U
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Abstract
The utility model belongs to machine carries total temperature sensor field of atmosphere, concretely relates to two redundant temperature measurement equipment of single core, including the skeleton, still include: the sensitive wires comprise a first group of sensitive wires and a second group of sensitive wires, the first group of sensitive wires and the second group of sensitive wires are wound on the framework towards one direction at the same time, and the interval between the first group of sensitive wires and the second group of sensitive wires is 0.5 week; and the core leading wires of the first group of sensitive wires and the second group of sensitive wires are simultaneously fixed on the framework. The utility model discloses can effectively promote the dynamic response uniformity index of two sets of temperature measuring element of total temperature sensor of atmosphere.
Description
Technical Field
The utility model belongs to machine carries total temperature sensor field of atmosphere, concretely relates to two redundant temperature measurement equipment of single core.
Background
The atmosphere total temperature signal is an important control parameter of the aircraft and can be used for calculating the flight altitude of the aircraft. The airborne total atmospheric temperature sensor converts a temperature signal into an electric signal by using a platinum thermal resistance temperature measurement principle, and the dynamic response performance of the airborne total atmospheric temperature sensor is an important factor influencing the precision.
The airborne total atmospheric temperature sensor usually adopts a specially customized temperature measuring element, and two groups of temperature measuring elements are manufactured at the same time to form a dual-redundancy structure so as to be convenient for grouping comparison and measurement. The special structure of the temperature measuring element determines that the temperature measuring element is difficult to adopt a standardized mechanical processing flow, part of processes adopt manual manufacturing, the consistency is difficult to ensure in the manufacturing process, and the differences of wire winding positions, seal welding, the thickness of an insulating coating and the like are inevitably generated, so that the response speed is inconsistent.
In order to solve the problem, the utility model provides a single core dual redundancy temperature measurement equipment can effectively promote the dynamic response uniformity index of two sets of temperature measuring element of total temperature sensor of atmosphere.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to address at least one of the above problems or disadvantages and to provide at least one advantage which will be described later.
The utility model also aims at providing a single core dual redundancy temperature measuring equipment, which greatly improves the dynamic response consistency index of two groups of temperature measuring elements of the total atmospheric temperature sensor.
In order to realize the utility model discloses a these purposes and other advantages, the utility model provides a single core dual redundancy temperature measurement equipment, including the skeleton, still include:
the sensitive wires comprise a first group of sensitive wires and a second group of sensitive wires, the first group of sensitive wires and the second group of sensitive wires are wound on the framework towards one direction at the same time, and the interval between the first group of sensitive wires and the second group of sensitive wires is 0.5 week;
and the core leading wires of the first group of sensitive wires and the second group of sensitive wires are simultaneously fixed on the framework.
Single core dual-redundancy temperature measuring equipment in order to reduce the produced conduction error of manual wire winding and welding point, adopt and place two sets of skeletons at the mode of same temperature sensing district, only carry out coiling and welding once, guaranteed temperature measuring device temperature measuring performance's uniformity.
Preferably, the skeleton is provided in a two-sided profiling manner.
In order to fix two groups of the core leading wires, the framework is subjected to two-side profiling, so that the welding position can be reduced, the weight of equipment is not increased, and the implementation is convenient.
Preferably, the sensor further comprises a first lead element and a second lead element, wherein the connecting end of the first lead element is connected with the first group of sensitive wires, and the connecting end of the second lead element is connected with the second group of sensitive wires;
the diameter of the first lead wire member is larger than that of the first group of sensitive wires, and the diameter of the second lead wire member is larger than that of the second group of sensitive wires, so that the design is convenient for structure compactness.
Preferably, the sensitive wire is a platinum resistance wire.
The platinum resistor has wide temperature measuring range, high precision and very stable physical and chemical properties; the oxidation resistance is strong; the resistivity is high, the processing is easy, a very thin platinum foil or a very thin platinum wire can be manufactured, the volume is reduced, meanwhile, the contact surface with a measured medium is increased, and the response rate is improved.
Preferably, the method further comprises the following steps:
a pillar having a hollow structure, wherein the free end of the first lead member and the free end of the second lead member pass through the hollow structure of the pillar;
the element base comprises a base and a small-diameter section, the base and the small-diameter section are integrally formed, the element base is connected with the framework, and the small-diameter section is located between the framework and the strut;
and the top end of the heat insulation column is connected with the element base, and the bottom end of the heat insulation column is connected with the support.
The strut is of a hollow structure, so that the free end of the first lead element and the free end of the second lead element can conveniently penetrate through the strut for use; the heat insulation column isolates the temperature sensing part (including the sensitive wire, the framework and the shell) and the support part as much as possible, so that the conduction error is further reduced; the small-diameter section is used for fixing the shell;
the heat insulation column is arranged below the element base, so that a certain gap is reserved when the framework and the support are assembled, the sensitive element can be blocked to conduct heat to the support, the conduction error is reduced, and the temperature measurement precision is improved.
Preferably, still include the shell, set up in the periphery of skeleton, the shell with form first space between the skeleton, sensitive silk holds in the first space, just sensitive silk with the shell contact, the bottom cover of shell is established the outside of thin footpath section.
The sensitive wire is in contact with the shell, and for better contact heat conduction, the first space is only limited to accommodate the sensitive wire, so that the space of the equipment is reduced, the weight of the equipment is not increased, and the cost is saved.
Preferably, the framework is a platinum pipe, and the shell is a platinum pipe.
The selected platinum tube has fast heat conduction, the expansion coefficient of the platinum tube is consistent with that of the platinum resistance wire, and the introduced error in the measurement is small.
The beneficial effects of the utility model
1. The utility model provides a pair of two redundant temperature measurement equipment of single core, its structure that adopts two sets of sensitive silks of coiling on a set of skeleton has solved the problem of single core two redundant temperature measurement equipment temperature measurement performance uniformity.
2. The utility model provides a pair of two redundancy temperature measurement equipment of single core, the sensitive silk interval of first group and the second group that its adopted is 0.5 week, guarantees that two sets of sensitive silk leading-out terminals are parallel to each other, does not produce alternately.
3. The utility model provides a pair of single core dual redundancy temperature measurement equipment, the thermal-insulated post of its adoption for leave certain space when skeleton and pillar equipment, can hinder the skeleton and carry out heat-conduction to the pillar, reduce conduction error, improve the temperature measurement precision.
4. The utility model provides a pair of two redundancy temperature measurement equipment of single core, it can reduce errors such as wire winding position, welding position, insulating coating thickness.
5. The utility model provides a pair of single core dual redundancy temperature measurement equipment, its simple structure easily installs, has enlarged application range, has saved the cost.
Drawings
FIG. 1 is a schematic structural view of a single-core dual-redundancy temperature measurement device according to the present invention;
FIG. 2 is a schematic structural view of the single-core dual-redundancy temperature measuring device shown in FIG. 1 after rotating 90 degrees;
wherein 1-framework, 2-sensitive wires, 3-first group of sensitive wires, 4-second group of sensitive wires, 5-core drawing wires,
6-first lead member, 7-second lead member, 8-pillar, 9-component base, 10-base, 11-small diameter section, 12-insulating column, 13-shell.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
In the present specification, when an element is referred to as being "connected to" or "disposed in" another element, it may be "directly connected to" or "directly disposed in" the other element. Or be connected to or disposed in another element with other elements interposed therebetween, unless it is volumetrically "directly connected to" or "directly disposed in" the other element. Further, it will be understood that when an element is referred to as being "on," "over," "under" or "under" another element, it can be "in direct" contact with the other element or in contact with the other element interposed therebetween, unless it is referred to as being in direct contact with the other element; it will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In order to realize the utility model discloses these purposes and other advantages, as shown in fig. 1, the utility model provides a single core dual redundancy temperature measuring equipment, including skeleton 1, still include:
the sensitive wire 2 comprises a first group of sensitive wires 3 and a second group of sensitive wires 4, the first group of sensitive wires 3 and the second group of sensitive wires 4 are wound on the framework 1 in one direction at the same time, and the first group of sensitive wires 3 and the second group of sensitive wires 4 are spaced by 0.5 week;
wherein, the core leading wires 5 of the first group of sensitive wires 3 and the second group of sensitive wires 4 are simultaneously fixed on the framework 1.
The utility model discloses be different from coiling a set of sensible wire on every group sensible element skeleton of existing atmosphere total temperature sensor, place the structure of two sets of sensible elements side by side, single core dual-redundancy atmosphere total temperature sensor adopts the structure of coiling two sets of sensible wires on a set of skeleton, and the central point of first group sensible wire and second group sensible wire is fixed respectively, and both ends are coiled to leading-out terminal (right side) simultaneously after the center fifty percent discount, first group sensible wire 3 with second group sensible wire 4 interval 0.5 week guarantees that two sets of sensible wire leading-out terminals are parallel to each other, do not produce the cross;
single core dual-redundancy temperature measuring equipment in order to reduce the produced conduction error of manual wire winding and welding point, adopt and place two sets of skeletons at the mode of same temperature sensing district, only carry out coiling and welding once, guaranteed temperature measuring device temperature measuring performance's uniformity.
Specifically, as shown in fig. 1, two groups of sensitive wires are wound on a framework at the same time, and the framework is arranged in a two-side compression mode, so that under the condition of ensuring the gas flow rate, the two-side compression mode is adopted, and two groups of core leading wires 5 need to be fixed on one framework at the same time conveniently.
Therefore, the welding position can be reduced, the weight of the equipment is not increased, and the implementation is convenient.
On the basis of the above embodiments, in yet another embodiment, as shown in fig. 1, the sensor further includes a first lead element 6 and a second lead element 7, where the first lead element and the second lead element each include a connection end and a free end, the connection end of the first lead element 6 is connected to the first group of sensitive wires 3, the connection end of the second lead element 7 is connected to the second group of sensitive wires 4, and the first lead element and the second lead element are used to connect the terminals of the first group of sensitive wires and the second group of sensitive wires and are led out from the pillar, so that the sensor is convenient to use, and time and cost are saved;
wherein the diameter of the first lead element 6 is larger than that of the first group sensitive wire 3, and the diameter of the second lead element 7 is larger than that of the second group sensitive wire 4, so that the design is convenient for compact structure.
In the utility model, the sensitive wire 2 is a platinum resistance wire, wherein the platinum resistance wire has wide temperature measuring range, high precision and very stable physical and chemical properties; the oxidation resistance is strong; resistivity is high, and easy processing can make very thin platinum foil or very thin platinum silk, reduces the volume, increase simultaneously and the contact surface of measured medium, improves response rate, so, can improve the utility model discloses a temperature measurement precision.
On the basis of the above embodiment, a further embodiment, as shown in fig. 1, further includes:
the strut 8 is of a hollow structure, the free end of the first lead element 6 and the free end of the second lead element 7 penetrate through the hollow structure of the strut 8, and the bracket is of a hollow structure and is convenient for the free end of the first lead element and the free end of the second lead element to penetrate through for use;
an element base 9, which comprises a base 10 and a small-diameter section 11, wherein the base 10 and the small-diameter section 11 are integrally formed, the element base 9 is connected with the framework 1, and the small-diameter section 11 is positioned between the framework 1 and the strut 8; set up thermal-insulated post on the component base for certain space is left when skeleton and pillar equipment, the utility model discloses the space of selecting is 1mm width, but separation sensing element carries out heat-conduction to the pillar, reduces conduction error, improves the temperature measurement precision.
The top end of the heat insulation column 12 is connected with the element base 9, the bottom end of the heat insulation column 12 is connected with the pillar 8, the inner side of the heat insulation column 12 is in contact connection with the first lead element 6 and the second lead element 7, and the heat insulation column 12 isolates temperature sensing parts (including a platinum resistance wire, a framework, an outer platinum pipe (namely a shell) and the pillar 8 part as far as possible, so that the conduction error is further reduced;
on the basis of the above embodiment, as shown in fig. 1, a further embodiment further includes a housing 13 disposed on the periphery of the framework 1, a first space is formed between the housing 13 and the framework 1, the sensitive wire 2 is accommodated in the first space, the sensitive wire 2 is in contact with the housing 13, and the bottom end of the housing 13 is sleeved on the outer side of the small diameter section 11.
The sensitive wire 2 is in contact with the shell 13, and for better contact heat conduction, the first space is only limited to contain the sensitive wire, so that the weight of equipment is not increased, and the cost is saved.
Specifically, the utility model provides a platinum pipe is selected to the skeleton, the shell is selected to the platinum pipe.
The selected platinum tube has fast heat conduction and the thermal expansion coefficient is consistent with that of the platinum resistance wire, and the introduced error in the measurement is small.
Of course, the skeleton can be selected from ceramic skeleton, glass skeleton, mica skeleton, etc. according to the actual situation.
To sum up, the utility model discloses the product is put two sets of sensing element in same temperature sensing area, can reduce errors such as wire winding position, welding position, insulating coating thickness to solve two sets of sensing element temperature measurement performance uniformity problems, do not increase equipment volume, be convenient for implement. This is a necessary requirement to adapt to new application conditions.
The invention is capable of other alternative embodiments and will not be described in detail herein.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (7)
1. The utility model provides a two redundancy temperature measurement equipment of single core, includes the skeleton, its characterized in that still includes:
the sensitive wires comprise a first group of sensitive wires and a second group of sensitive wires, the first group of sensitive wires and the second group of sensitive wires are wound on the framework towards one direction at the same time, and the interval between the first group of sensitive wires and the second group of sensitive wires is 0.5 week;
and the core leading wires of the first group of sensitive wires and the second group of sensitive wires are simultaneously fixed on the framework.
2. The single core dual redundancy thermometric apparatus of claim 1, wherein said skeleton is arranged in a two-sided profiled manner.
3. The single core dual redundancy temperature measuring device of claim 1, further comprising a first lead member and a second lead member, wherein a connecting end of the first lead member is connected to the first set of sensitive wires, and a connecting end of the second lead member is connected to the second set of sensitive wires;
wherein the diameter of the first lead element is larger than the diameter of the first group of sensitive wires, and the diameter of the second lead element is larger than the diameter of the second group of sensitive wires.
4. The single core dual redundancy temperature measurement device of claim 1, wherein the sensing wire is a platinum resistance wire.
5. The single core dual redundancy thermometry apparatus of claim 3, further comprising:
a pillar having a hollow structure, wherein the free end of the first lead member and the free end of the second lead member pass through the hollow structure of the pillar;
the element base comprises a base and a small-diameter section, the base and the small-diameter section are integrally formed, the element base is connected with the framework, and the small-diameter section is located between the framework and the strut;
and the top end of the heat insulation column is connected with the element base, and the bottom end of the heat insulation column is connected with the support.
6. The single-core dual-redundancy temperature measurement device according to claim 5, further comprising a housing disposed at the periphery of the skeleton, wherein a first space is formed between the housing and the skeleton, the sensitive wire is accommodated in the first space, the sensitive wire is in contact with the housing, and the bottom end of the housing is sleeved outside the small-diameter section.
7. The single core dual redundancy temperature measuring device of claim 6, wherein the skeleton is a platinum pipe and the housing is a platinum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921853836.0U CN211291781U (en) | 2019-10-30 | 2019-10-30 | Single-core dual-redundancy temperature measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921853836.0U CN211291781U (en) | 2019-10-30 | 2019-10-30 | Single-core dual-redundancy temperature measuring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291781U true CN211291781U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921853836.0U Active CN211291781U (en) | 2019-10-30 | 2019-10-30 | Single-core dual-redundancy temperature measuring equipment |
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| CN (1) | CN211291781U (en) |
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- 2019-10-30 CN CN201921853836.0U patent/CN211291781U/en active Active
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