CN205049267U - Non -contact pressure measurement - Google Patents
Non -contact pressure measurement Download PDFInfo
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- CN205049267U CN205049267U CN201520772804.3U CN201520772804U CN205049267U CN 205049267 U CN205049267 U CN 205049267U CN 201520772804 U CN201520772804 U CN 201520772804U CN 205049267 U CN205049267 U CN 205049267U
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- pedestal
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Abstract
The utility model relates to a non -contact pressure measurement, including elastomeric element, according to the piece, incident light source module and the focus subassembly of making a video recording, the incident light source module sets gradually in the epaxial light source of incident light on including edge light incidence direction, light convergent lens, it includes that edge light sets gradually in epaxial formation of image focusing lens of focused light and digital image sensor to focus on the subassembly of making a video recording on focusing on the direction, the angle of setting for has been rolled over to incident optical axis and focused light decentration, this detection device still includes the intelligent image processing device of being connected with the digital image sensor, thereby the image information that intelligence image processing device can obtain the digital image sensor after according to reflection or scattering the position change of facula on image sensor calculate the displacement volume according to the piece, and then calculate the testee variation in pressure. This detection device can not only measure high temperature medium pressure, and resolution ratio is high moreover, stability is good, measurement accuracy is high, use safe and reliable.
Description
Technical field
The utility model relates to a kind of pick-up unit, particularly the contactless pressure-detecting device of one.
Background technology
Existing Touch Mode Capacitive Pressure Sensor, its output exists non-linear, and stray capacitance and distributed capacitance affect sensitivity and measuring accuracy, and the temperature of silicon pressure sensor to operating mode is restricted.Along with the continuous expansion of field of industrial measurement, to the measurement of worst hot case, the improving constantly of measuring accuracy and measuring speed, traditional contact pressure sensor cannot meet the demand of industry member, therefore to provide that a kind of measuring accuracy is high, good stability, can measure high-temperature medium contactless pressure transducer oneself become when business urgently.
Utility model content
The purpose of this utility model is to overcome above shortcoming, and provide a kind of contactless pressure-detecting device, this pick-up unit can not only measure high-temperature medium, and resolution is high, good stability, measuring accuracy are high, safe and reliable.
The utility model is achieved in that
A kind of contactless pressure-detecting device, it is characterized in that: comprise and to be connected with testee and can to change according to testee pressure and produce the elastomeric element of deformation, be fixedly arranged on the reference block on elastomeric element, for the incident light source assembly to reference block emission of light and for obtaining the focusing camera assembly of light after reference block reflection or scattering, described incident light source assembly comprises the light source along light direction being set in turn on incident light axis, convergence of rays lens, described focusing camera assembly comprises and focuses on imaging and focusing lens on optical axis and digital image sensor along light focusing direction is set in turn in, described incident light axis and the angle focusing on the setting of optical axis deviation, described contactless pressure-detecting device also comprises the intelligent image treating apparatus be connected with digital image sensor, intelligent image treating apparatus can obtain the image information of digital image sensor thus calculate the displacement of reference block according to hot spot change in location on the image sensor after reflection or scattering, and then calculate the change of testee pressure.
Further, this device also comprises pedestal and is arranged at the light reflection chamber in base body, described light reflection chamber is connected with outside near one end of reference block, the other end is positioned at base body, the openend in described light reflection chamber is installed with the web member for being connected with testee, one end that described web member is positioned at light reflection chamber is provided with the impulse chamber of opening towards light reflection chamber, described web member is provided with the tracting pressuring hole for being communicated with impulse chamber and testee, described elastomeric element envelope is located on the opening in impulse chamber, described reference block is fixedly arranged on elastomeric element and is positioned on the surface of side, light reflection chamber, one end that described light reflection chamber is positioned at base body is provided with the optically focused pedestal mounting hole be connected with outside, the sidewall in described light reflection chamber is provided with and is connected and the imaging pedestal mounting hole of the axis deviation set angle of axis and optically focused pedestal mounting hole with outside, this device also comprises the optically focused pedestal be installed on optically focused pedestal mounting hole and the imaging pedestal be installed on imaging pedestal mounting hole, described convergence of rays lens are installed on one end that optically focused pedestal is positioned at light reflection chamber, described light source is installed in optically focused pedestal, described imaging and focusing lens are installed on one end that imaging pedestal is positioned at light reflection chamber, and described digital image sensor is installed in imaging pedestal.
Preferably, described light reflection chamber comprises the cylindrical cavity that is arranged at pedestal upper end and is arranged at the turbination cavity be connected in the middle part of pedestal and with cylindrical cavity, the upper end of described cylindrical cavity is connected with outside and lower end is connected with turbination cavity upper end, described optically focused pedestal mounting hole is connected with the lower end of turbination cavity, and described imaging pedestal mounting hole is arranged on the sidewall of turbination cavity.
Preferably, described light source is provided with 2-20 pin one, and outside described pin one, cover has insulator one, and described digital image sensor is provided with 2-20 pin two, and outside described pin two, cover has insulator two.
Preferably, described light reflection chamber is vacuum chamber.
Preferably, described pedestal, web member, optically focused pedestal, imaging pedestal and reference block adopt metal material to make.
Preferably, described elastomeric element is invar property reed.
Preferably, described light source is LED light source.
Compared to prior art, the utility model has the following advantages:
(1) the contactless pressure-detecting device that provides of the utility model, can not only measure high-temperature medium, and resolution is high, good stability, measuring accuracy are high, safe and reliable;
(2) the contactless pressure-detecting device that provides of the utility model, described light reflection chamber is vacuum chamber, and light is propagated does not have energy loss, and reflecting effect is good;
(3) the contactless pressure-detecting device that provides of the utility model, light source adopts LED light source, long service life;
(4) the contactless pressure-detecting device that provides of the utility model, structure is simple, and low cost of manufacture, is easy to apply.
Accompanying drawing explanation
The utility model is described in further detail in conjunction with the embodiments with reference to the accompanying drawings:
Fig. 1 is the structural representation of the contactless pressure-detecting device of the utility model;
Fig. 2 is the W direction view of Fig. 1;
Fig. 3 is the index path of the contactless pressure-detecting device of the utility model.
Symbol description in figure: 1, elastomeric element, 2, reference block, 3, incident light axis, 4, focus on optical axis, 5, light source, 5-1, pin one, 5-2, insulator one, 6, convergence of rays lens, 7, imaging and focusing lens, 8, digital image sensor, 8-1, pin one, 8-2, insulator two, 9, pedestal, 10, light reflection chamber, 10-1, cylindrical cavity, 10-2, turbination cavity, 11, web member, 12, impulse chamber, 13, tracting pressuring hole, 14, optically focused pedestal, 15, imaging pedestal.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the utility model content is described in detail:
Be the contactless pressure-detecting device of one that the utility model provides as Figure 1-3, comprise and to be connected with testee and can to change according to testee pressure and produce the elastomeric element 1 of deformation, be fixedly arranged on the reference block 2 on elastomeric element 1, for the incident light source assembly to reference block 2 emission of light and reflect or the focusing camera assembly of light after scattering for obtaining reference block 2, described incident light source assembly comprises the light source 5 along light direction being set in turn on incident light axis 3, convergence of rays lens 6, described focusing camera assembly comprises and focuses on imaging and focusing lens 7 on optical axis 4 and digital image sensor 8 along light focusing direction is set in turn in, described incident light axis 3 and the angle focusing on the setting of optical axis 4 deviation, described contactless pressure-detecting device also comprises the intelligent image treating apparatus be connected with digital image sensor 8, intelligent image treating apparatus can obtain the image information of digital image sensor 8 thus calculate the displacement of reference block 2 according to the change in location of hot spot on imageing sensor 8 after reflection or scattering, and then calculate the change of testee pressure.
As shown in Figure 1, further, this device also comprises pedestal 9 and is arranged at the light reflection chamber 10 in pedestal 9 body, described light reflection chamber 10 is connected with outside near one end of reference block 2, the other end is positioned at pedestal 9 body, the openend in described light reflection chamber 10 is installed with the web member 11 for being connected with testee, one end that described web member 11 is positioned at light reflection chamber 10 is provided with the impulse chamber 12 of opening towards light reflection chamber 10, described web member 11 is provided with the tracting pressuring hole 13 for being communicated with impulse chamber 12 and testee, described elastomeric element 1 envelope is located on the opening in impulse chamber 12, described reference block 2 is fixedly arranged on elastomeric element 1 and is positioned on the surface of side, light reflection chamber 10, one end that described light reflection chamber 10 is positioned at pedestal 9 body is provided with the optically focused pedestal mounting hole be connected with outside, the sidewall in described light reflection chamber 10 is provided with and is connected and the imaging pedestal mounting hole of the axis deviation set angle of axis and optically focused pedestal mounting hole with outside, this device also comprises the optically focused pedestal 14 be installed on optically focused pedestal mounting hole and the imaging pedestal 15 be installed on imaging pedestal mounting hole, described convergence of rays lens 6 are installed on one end that optically focused pedestal 14 is positioned at light reflection chamber 10, described light source 5 is installed in optically focused pedestal 14, described imaging and focusing lens 7 are installed on one end that imaging pedestal 15 is positioned at light reflection chamber 10, and described digital image sensor 8 is installed in imaging pedestal 15.
As shown in Figure 1, preferably, described light reflection chamber 10 comprises the cylindrical cavity 10-1 that is arranged at pedestal 9 upper end and is arranged at the turbination cavity 10-2 be connected in the middle part of pedestal 9 and with cylindrical cavity 10-1, the upper end of described cylindrical cavity 10-1 is connected with outside and lower end is connected with turbination cavity 10-2 upper end, described optically focused pedestal mounting hole is connected with the lower end of turbination cavity 10-2, and described imaging pedestal mounting hole is arranged on the sidewall of turbination cavity 10-2.
As shown in Figure 1 and Figure 2, preferably, described light source 5 is provided with 2-20 pin one 5-1, and outside described pin one 5-1, cover has insulator one 5-2, described digital image sensor 8 is provided with 2-20 pin two 8-1, and outside described pin two 8-1, cover has insulator two 8-2.
Preferably, described light reflection chamber 10 is vacuum chamber.
Preferably, described pedestal 9, web member 11, optically focused pedestal 14, imaging pedestal 15 and reference block 2 adopt metal material to make.
Preferably, described elastomeric element 1 is invar property reed.
Preferably, described light source is LED light source.
Principle of work of the present utility model is as follows:
1. when this pick-up unit is not connected with testee, elastomeric element 1 does not produce deformation, open light source 5 and digital image sensor 8, the light that light source 5 sends is mapped to behind reference block 2 surface through convergence of rays lens 6, reflection or scattered light through imaging and focusing lens 7 focal imaging on the photosurface of digital image sensor 8, intelligent image treating apparatus can obtain the light spot image information that digital image sensor 8 collects, and hot spot when elastomeric element 1 does not produce deformation is unit's point hot spot;
2. the web member 11 of pick-up unit is connected with testee, elastomeric element 1 produces deformation according to the change of testee pressure, the image information that digital image sensor 8 collects by intelligent image treating apparatus and step unit's point light spot image information 1. carries out contrasting and calculating displacement, then displacement is changed into the current signal of 4-20mA by intelligent image treating apparatus, then the size of size calculating pressure according to electric current.
Above-mentioned embodiment is just explained in detail the technical solution of the utility model; the utility model has more than and is only confined to above-described embodiment; every any improvement according to the utility model principle or replacement, all should within protection domain of the present utility model.
Claims (8)
1. a contactless pressure-detecting device, it is characterized in that: comprise and to be connected with testee and can to change according to testee pressure and produce the elastomeric element (1) of deformation, be fixedly arranged on the reference block (2) on elastomeric element (1), for the incident light source assembly to reference block (2) emission of light and for obtaining the focusing camera assembly of light after reference block (2) reflection or scattering, described incident light source assembly comprises the light source (5) along light direction being set in turn on incident light axis (3), convergence of rays lens (6), described focusing camera assembly comprises and focuses on imaging and focusing lens (7) on optical axis (4) and digital image sensor (8) along light focusing direction is set in turn in, described incident light axis (3) and focus on the angle of optical axis (4) deviation setting, described contactless pressure-detecting device also comprises the intelligent image treating apparatus be connected with digital image sensor (8), intelligent image treating apparatus can obtain the image information of digital image sensor (8) thus calculate the displacement of reference block (2) according to the change in location of hot spot on imageing sensor (8) after reflection or scattering, and then calculate the change of testee pressure.
2. contactless pressure-detecting device according to claim 1, it is characterized in that: this device also comprises pedestal (9) and is arranged at the light reflection chamber (10) in pedestal (9) body, described light reflection chamber (10) is connected with outside near one end of reference block (2), the other end is positioned at pedestal (9) body, the openend of described light reflection chamber (10) is installed with the web member (11) for being connected with testee, one end that described web member (11) is positioned at light reflection chamber (10) is provided with the impulse chamber (12) of opening towards light reflection chamber (10), described web member (11) is provided with the tracting pressuring hole (13) for being communicated with impulse chamber (12) and testee, described elastomeric element (1) envelope is located on the opening of impulse chamber (12), described reference block (2) is fixedly arranged on elastomeric element (1) and is positioned on the surface of light reflection chamber (10) side, one end that described light reflection chamber (10) is positioned at pedestal (9) body is provided with the optically focused pedestal mounting hole be connected with outside, the sidewall of described light reflection chamber (10) is provided with and is connected and the imaging pedestal mounting hole of the axis deviation set angle of axis and optically focused pedestal mounting hole with outside, this device also comprises the optically focused pedestal (14) be installed on optically focused pedestal mounting hole and the imaging pedestal (15) be installed on imaging pedestal mounting hole, described convergence of rays lens (6) are installed on one end that optically focused pedestal (14) is positioned at light reflection chamber (10), described light source (5) is installed in optically focused pedestal (14), described imaging and focusing lens (7) are installed on one end that imaging pedestal (15) is positioned at light reflection chamber (10), and described digital image sensor (8) is installed in imaging pedestal (15).
3. contactless pressure-detecting device according to claim 2, it is characterized in that: described light reflection chamber (10) comprises the cylindrical cavity (10-1) that is arranged at pedestal (9) upper end and is arranged at pedestal (9) middle part and the turbination cavity (10-2) be connected with cylindrical cavity (10-1), the upper end of described cylindrical cavity (10-1) is connected with outside and lower end is connected with turbination cavity (10-2) upper end, described optically focused pedestal mounting hole is connected with the lower end of turbination cavity (10-2), described imaging pedestal mounting hole is arranged on the sidewall of turbination cavity (10-2).
4. contactless pressure-detecting device according to claim 2, it is characterized in that: described light source (5) is provided with 2-20 pin one (5-1), described pin one (5-1) outside cover has insulator one (5-2), described digital image sensor (8) is provided with 2-20 pin two (8-1), and described pin two (8-1) outside cover has insulator two (8-2).
5. contactless pressure-detecting device according to claim 2, is characterized in that: described light reflection chamber (10) is vacuum chamber.
6. contactless pressure-detecting device according to claim 2, is characterized in that: described pedestal (9), web member (11), optically focused pedestal (14), imaging pedestal (15) and reference block (2) adopt metal material to make.
7. contactless pressure-detecting device according to claim 1, is characterized in that: described elastomeric element (1) is invar property reed.
8. contactless pressure-detecting device according to claim 1, is characterized in that: described light source (5) is LED light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772804.3U CN205049267U (en) | 2015-09-30 | 2015-09-30 | Non -contact pressure measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520772804.3U CN205049267U (en) | 2015-09-30 | 2015-09-30 | Non -contact pressure measurement |
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| Publication Number | Publication Date |
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| CN205049267U true CN205049267U (en) | 2016-02-24 |
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| CN201520772804.3U Active CN205049267U (en) | 2015-09-30 | 2015-09-30 | Non -contact pressure measurement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222930A (en) * | 2015-09-30 | 2016-01-06 | 福建上润精密仪器有限公司 | Contactless pressure-detecting device and detection method thereof |
| CN107792551A (en) * | 2016-08-30 | 2018-03-13 | 南通鸿志化工有限公司 | A kind of triisopropyl borate ester storage device |
| WO2018120212A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳配天智能技术研究院有限公司 | Pressure array detection device, corresponding method, and pulse diagnosis detection device |
| CN110792185A (en) * | 2019-10-24 | 2020-02-14 | 四川大学 | Intelligent damper capable of synchronously and automatically monitoring force and displacement |
-
2015
- 2015-09-30 CN CN201520772804.3U patent/CN205049267U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222930A (en) * | 2015-09-30 | 2016-01-06 | 福建上润精密仪器有限公司 | Contactless pressure-detecting device and detection method thereof |
| CN107792551A (en) * | 2016-08-30 | 2018-03-13 | 南通鸿志化工有限公司 | A kind of triisopropyl borate ester storage device |
| WO2018120212A1 (en) * | 2016-12-30 | 2018-07-05 | 深圳配天智能技术研究院有限公司 | Pressure array detection device, corresponding method, and pulse diagnosis detection device |
| CN110792185A (en) * | 2019-10-24 | 2020-02-14 | 四川大学 | Intelligent damper capable of synchronously and automatically monitoring force and displacement |
| CN110792185B (en) * | 2019-10-24 | 2021-05-04 | 四川大学 | Intelligent damper capable of synchronously and automatically monitoring force and displacement |
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| GR01 | Patent grant |