CN219348004U - Sensor with temperature and pressure dual current output - Google Patents
Sensor with temperature and pressure dual current output Download PDFInfo
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- CN219348004U CN219348004U CN202223591303.4U CN202223591303U CN219348004U CN 219348004 U CN219348004 U CN 219348004U CN 202223591303 U CN202223591303 U CN 202223591303U CN 219348004 U CN219348004 U CN 219348004U
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Abstract
The utility model discloses a temperature-pressure double-current output sensor, which comprises a body, wherein one end part of the body is integrally provided with a nut, the other end of the nut is integrally provided with a transition section, the other end of the transition section is integrally provided with a connecting section, and the other end of the connecting section is integrally provided with a compression section; a silicon strain gauge is arranged outside the pressed section; the changeover portion has seted up the fixed orifices, and the opening of fixed orifices extends to in the nut towards annular A, blind end, and the fixed orifices is provided with temperature sensor, and temperature sensor's cable is worn out the back in annular A and is connected in the circuit board together with the cable of silicon strain gauge. The temperature probe and the circuit are concentrated in the pressure sensor, so that a customer can conveniently adopt one sensor to measure temperature and pressure simultaneously, customer accessories are reduced, the volume of a customer product is reduced, the installation space is shortened, and the measurement of pressure and temperature is more synchronous.
Description
Technical Field
The utility model relates to a temperature and pressure sensing measurement device, in particular to a temperature and pressure dual-current output sensor.
Background
The domestic existing temperature and pressure measurement technology:
the pressure is measured by adopting a pressure sensor (also called a transmitter) to output 4-20 mA industrial standard signals;
the temperature is measured by adding a signal amplifying module to a temperature measuring device based on PT100 or a thermocouple, a thermal resistor and the like, and a temperature sensor or a transmitter is manufactured.
If the pressure and the temperature need to be measured, two sensors are needed, one is used for measuring the pressure, the other is used for measuring the temperature, and two measuring holes are needed to be formed in the client equipment, so that the temperature and the pressure sensors are respectively installed. Therefore, the opening of the client device is damaged to a certain extent, the size of the device is increased, the strength of the device is reduced, and dust is deposited.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the temperature-pressure dual-current output sensor, and the temperature probe and the circuit are concentrated in the pressure sensor, so that a customer can conveniently adopt one sensor to measure the temperature and the pressure simultaneously, the number of customer accessories is reduced, the volume of a customer product is reduced, and the measurement of the pressure and the temperature is more synchronous.
In order to achieve the technical purpose, the utility model adopts the following technical scheme: the temperature-pressure double-current output sensor comprises a body, wherein one end part of the body is integrally provided with a nut, the other end of the nut is integrally provided with a transition section, the other end of the transition section is integrally provided with a connecting section, and the other end of the connecting section is integrally provided with a pressed section; a silicon strain gauge is arranged outside the pressed section;
the outer diameter of the transition section is larger than that of the connecting section, the outer diameter of the pressed section is larger than that of the connecting section, so that an annular groove A is formed between the transition section and the connecting section and between the pressed section, a fixing hole is formed in the transition section, the opening of the fixing hole faces the annular groove A and the closed end and extends into the nut, a temperature sensor is arranged in the fixing hole, and a cable of the temperature sensor is connected with a cable of the silicon strain gauge together after penetrating out of the annular groove A.
Further, the projection of the pressed section on the transition section covers the fixing hole.
Further, the compression section is provided with a yielding hole for the cable to pass through, and the yielding hole is aligned with the fixing hole.
Further, at least two squeeze plates are arranged at the bottom of the fixing hole, and springs are arranged on the outer sides of the squeeze plates so that the squeeze plates move towards the center of the fixing hole to squeeze the temperature sensor.
Further, an inlet inclined plane is arranged on the upper end face of the extrusion plate, and a clamping groove matched with the shape of the temperature sensor is formed in the inner side of the extrusion plate.
Further, a pressure hole is formed in the center of the body, the pressure hole extends from the end face of the body to the inside of the pressed section, and a diaphragm is arranged between the inner end of the pressure hole and the outer wall of the pressed section.
Further, the silicon strain gauge is fixed on the outer wall of the diaphragm by adopting a glass micro-melting technology.
In summary, the present utility model achieves the following technical effects:
the utility model adopts glass micro-melting technology, gives play to the advantages of glass micro-melting technology structure, and the temperature probe and the pressure sensor in the circuit are centralized, so that a customer can conveniently adopt one sensor to measure temperature and pressure simultaneously, the number of customer accessories is reduced, the volume of the customer product is reduced, and the measurement of installation space pressure and temperature is more synchronous;
the utility model can solve the problem that the pressure and temperature can be accurately measured in the industrial field, the sensors capable of simultaneously measuring the pressure and the temperature are few at present, along with the requirement and development of industrial automation, more industries and equipment need to simultaneously measure pressure and temperature signals, the utility model provides a high-precision pressure and temperature measurement scheme, the product volume is small, the measurement precision is high, the product can be produced in a large scale, and the utility model can be widely applied to various industries, military industry and other fields;
the utility model is applied to the fields of military industry, industry and the like, the front end of a pressure sensor is manufactured by adopting a glass micro-melting technology, meanwhile, a PT100 probe capable of precisely measuring temperature is arranged in a stainless steel base at the front end of the pressure sensor, and a precise circuit is arranged at the rear end of the pressure sensor to convert pressure signals and temperature signals into 4-20 mA of a standard signal two-wire system respectively.
Drawings
FIG. 1 is a schematic cross-sectional view of a temperature-pressure dual-current output sensor according to an embodiment of the present utility model;
fig. 2 is a schematic view of a portion of fig. 1.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
Examples:
as shown in fig. 1, a sensor for outputting temperature and pressure double currents, in particular to a sensor for outputting temperature and pressure double currents based on glass micro-melting technology, which comprises a body 1, wherein one end part of the body 1 is integrally provided with a nut 2, the other end of the nut 2 is integrally provided with a transition section 3, the other end of the transition section 3 is integrally provided with a connecting section 4, and the other end of the connecting section 4 is integrally provided with a compression section 5; a silicon strain gauge (not shown) is provided outside the pressure receiving section 5.
According to the utility model, the body 1, the nut 2, the transition section 3, the connecting section 4 and the pressure receiving section 5 are integrally arranged, so that the strength of the whole pressure sensor is improved, and the installation and the use are convenient.
The external diameter of changeover portion 3 is greater than the external diameter of linkage segment 4, and the external diameter of pressurized section 5 is greater than the external diameter of linkage segment 4 for form annular A between changeover portion 3 and linkage segment 4, the pressurized section 5, changeover portion 3 has seted up fixed orifices 7, and fixed orifices 7's opening extends to in the nut 2 towards annular A, blind end, and fixed orifices 7 are provided with temperature sensor 8, and temperature sensor 8's cable 801 is worn out the back together with the cable of silicon strain gauge in annular A and is connected in the circuit board. The setting of annular A not only is convenient for install and connect, but also can make things convenient for the seting up of fixed orifices, lets temperature sensor built-in pressure sensor for temperature and pressure's measurement is as an organic wholely, only need set up a hole that is used for installing this pressure sensor at the user terminal can, and need not open a hole that is used for installing temperature sensor again, reduces the harm to user terminal equipment. The detection end of the temperature sensor 8 stretches into the nut 2, so that the detection precision is improved, and the temperature transmission is more timely and accurate.
The projection of the pressed section 5 on the transition section 3 covers the fixing hole 7, that is, after the cable 801 comes out of the fixing hole 7, the cable is connected to the circuit board in an extending manner after turning by a certain amplitude, so that the connection part between the cable and the detection end is not damaged.
The compression section 5 is provided with a yielding hole 501 for the cable 801 to pass through, and the yielding hole 501 is aligned with the fixing hole 7, so that the cable 801 can be conveniently extended to the circuit board.
As shown in fig. 2, the bottom of the fixing hole 7 is provided with at least two pressing plates 701, and the outer sides of the pressing plates 701 are provided with elastic 5 springs such that the at least two pressing plates 701 move toward the center of the fixing hole 7 to press the temperature sensor 8. The upper end of the squeeze plate 701
The surface is provided with an inlet inclined plane 703, and the inner side of the squeeze plate 701 is provided with a clamping groove matched with the shape of the temperature sensor 8. The probe of the temperature sensor stretches into the fixing hole 7, the probe stretches the extrusion plate 701 and then enters the fixing hole, and the plurality of extrusion plates extrude the probe under the action of the springs, so that the connection between the probe and the extrusion plate and the connection between the probe and the bottom surface of the fixing hole are stable and well contacted, and the temperature measurement is accurate.
0 as shown in fig. 1, a pressure hole 101 is formed in the center of the body 1, and the pressure hole 101 extends from the end face of the body 1 to the pressure
Within the section 5 and between the inner end of the pressure bore 101 and the outer wall of the compressed section 5 is a diaphragm 6. The silicon strain gauge is fixed to the outer wall of the diaphragm 6 by glass micro-fusion technology.
The end of the pressure hole 101 is provided with a damping 9.
The temperature sensor 8 adopts a PT100 temperature probe, the PT100 temperature probe is arranged in a stainless steel hexagon, 5 temperature of a measured medium is transmitted to the probe through stainless steel, after the probe detects the temperature, the temperature is converted into an industry standard signal through a circuit at the rear end, and the industry standard signal is output
The temperature current signal forms two current signals of output pressure and temperature.
The utility model belongs to temperature and pressure sensing measuring devices in the military field and the industrial field, and relates to methods or technologies of application of a glass micro-melting sensor, measurement of an electric bridge, temperature compensation, signal processing, PT100 temperature measurement, signal conversion and the like.
The utility model adopts glass micro-melting technology and special material with special process to solve the problems, and the whole induction
The pressure device is formed by processing a whole 17-4 stainless steel bar material, a measured hydraulic oil medium is introduced from a pressure hole at the front end, weak deformation is transmitted to a silicon strain gauge at the other side through a processed stainless steel membrane, a signal is transmitted to a subsequent circuit through the silicon strain gauge, an electronic bin and a pressure medium bin are completely isolated through the 17-4 stainless steel membrane, filled silicone oil and sealing elements are not arranged in the electronic bin and the pressure medium bin, hidden danger of leakage is thoroughly avoided, and the product can work stably for a long time.
5 the front end of the utility model can also be designed into a sphere, the sphere seal is a main mode of ultrahigh pressure seal, is one
The hard seal can ensure that the product is not leaked under the condition of high pressure, and is convenient for the installation of customers.
The front-end stainless steel machined part is formed by integrally machining 17-4 stainless steel, and the whole production process is as follows: stainless steel processing piece-membrane surface treatment-silk screen printing-sintering glass-pasting strain gauge-sintering strain gauge-aging-bonding circuit board-bonding wire-testing-pressurizing force amplifying board-pressure signal for temperature compensation, calibration-installing temperature probe-heating temperature signal module-testing temperature signal output-product internal glue filling sealing-welding shell-product aging and testing-marking-packaging and the like.
Technical parameters of the product are as follows:
1. pressure range: 0-500 MPa;
2. and (3) power supply: 10V-36V DC;
3. pressure output: 4-20 mA
4. Comprehensive precision: 0.5% fs;
5. temperature range: -60-130 DEG C
6. Temperature output: 4-20 mA
7. Insulation resistance of 100Mohm @ 250V DC
8. Operating temperature: -20-100 ℃;
9. compensation temperature: -10-70 ℃;
10. protection grade: IP67;
11. the membrane material: 17-4PH stainless steel.
The utility model can adapt to various pressure ranges of 1 Mpa-100 Mpa, and the temperature ranges cover various temperature range ranges between-40C and 200C. The front end of the utility model is provided with a thread of M20X1.5 or 3/4UNF-16, the PT100 temperature measurement is carried out in the interior, the pressure and temperature output is two paths of 4-20 mA standard output, and the output electrical interface is a cable or a plug or a connector of M12.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical solutions of the present utility model.
Claims (7)
1. A temperature pressure double current output sensor is characterized in that: the novel nut comprises a body (1), wherein a nut (2) is integrally arranged at one end part of the body (1), a transition section (3) is integrally arranged at the other end of the nut (2), a connecting section (4) is integrally arranged at the other end of the transition section (3), and a compression section (5) is integrally arranged at the other end of the connecting section (4); a silicon strain gauge is arranged outside the pressure receiving section (5);
the outer diameter of changeover portion (3) is greater than the external diameter of linkage segment (4), the external diameter of pressurized segment (5) is greater than the external diameter of linkage segment (4), make changeover portion (3) with form annular A between linkage segment (4) pressurized segment (5), fixed orifices (7) have been seted up to changeover portion (3), the opening orientation of fixed orifices (7) annular A, blind end extend to in nut (2), fixed orifices (7) are provided with temperature sensor (8), cable (801) of temperature sensor (8) follow wear out in annular A back together with the cable of strainometer is connected in the circuit board.
2. A temperature pressure dual current output sensor as defined in claim 1, wherein: the projection of the pressed section (5) on the transition section (3) covers the fixing hole (7).
3. A temperature pressure dual current output sensor as defined in claim 2, wherein: the pressure-receiving section (5) is provided with a yielding hole (501) for the cable (801) to pass through, and the yielding hole (501) is aligned with the fixing hole (7).
4. A temperature pressure dual current output sensor according to claim 3, wherein: the bottom of the fixing hole (7) is provided with at least two squeeze plates (701), and springs are arranged on the outer sides of the squeeze plates (701) so that the at least two squeeze plates (701) move towards the center of the fixing hole (7) to squeeze the temperature sensor (8).
5. A temperature pressure dual current output sensor as defined in claim 4, wherein: an inlet inclined plane (703) is arranged on the upper end surface of the extrusion plate (701), and a clamping groove matched with the shape of the temperature sensor (8) is formed in the inner side of the extrusion plate (701).
6. A temperature pressure dual current output sensor as defined in claim 5, wherein: the pressure hole (101) is formed in the center of the body (1), the pressure hole (101) extends from the end face of the body (1) to the inside of the pressed section (5), and a diaphragm (6) is arranged between the inner end of the pressure hole (101) and the outer wall of the pressed section (5).
7. A temperature pressure dual current output sensor as defined in claim 6, wherein: the silicon strain gauge is fixed on the outer wall of the diaphragm (6) by adopting a glass micro-melting technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223591303.4U CN219348004U (en) | 2022-12-30 | 2022-12-30 | Sensor with temperature and pressure dual current output |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223591303.4U CN219348004U (en) | 2022-12-30 | 2022-12-30 | Sensor with temperature and pressure dual current output |
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| CN219348004U true CN219348004U (en) | 2023-07-14 |
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| CN202223591303.4U Active CN219348004U (en) | 2022-12-30 | 2022-12-30 | Sensor with temperature and pressure dual current output |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990254A (en) * | 2024-04-03 | 2024-05-07 | 深圳安培龙科技股份有限公司 | Six-dimensional force sensor based on glass micro-melting process and preparation method thereof |
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2022
- 2022-12-30 CN CN202223591303.4U patent/CN219348004U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117990254A (en) * | 2024-04-03 | 2024-05-07 | 深圳安培龙科技股份有限公司 | Six-dimensional force sensor based on glass micro-melting process and preparation method thereof |
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