CN214374398U - Web material sensing device - Google Patents
Web material sensing device Download PDFInfo
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- CN214374398U CN214374398U CN202023310815.XU CN202023310815U CN214374398U CN 214374398 U CN214374398 U CN 214374398U CN 202023310815 U CN202023310815 U CN 202023310815U CN 214374398 U CN214374398 U CN 214374398U
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Abstract
A surface material sensing device relates to the technical field of surface material quality detection, and adopts the technical scheme that the device comprises an oscillation and monitoring circuit, a conversion circuit in signal connection with the oscillation and monitoring circuit, a first resonant cavity and a second resonant cavity, wherein the central axes of the first resonant cavity and the second resonant cavity are coincident, and a measurement gap is arranged between the first resonant cavity and the second resonant cavity; the ends, close to each other, of the first resonant cavity and the second resonant cavity are both open, the end, far away from the first resonant cavity, of the second resonant cavity is closed, the end, far away from the second resonant cavity, of the first resonant cavity is provided with the oscillation and monitoring circuit, and the oscillation and monitoring circuit is in electromagnetic coupling with the first resonant cavity; the conversion circuit is provided with a connection cable. The utility model has the advantages of detect fast, the range is big, can guarantee real-time technological parameter control, guarantee product quality promotes economic benefits, simple structure, with low costs, operation and maintenance convenience simultaneously.
Description
Technical Field
The utility model relates to a surface width of cloth material quality testing technical field especially relates to a surface width of cloth material sensing device.
Background
The industrial online quality measurement and control system relates to material thickness or square meter gram weight detection, relies on a radiation penetration technology for a long time, brings safety risks to operators around links of approval, purchase, transportation, storage, application, maintenance, annual inspection, recovery and the like of a radioactive source, and has complicated procedures and considerable cost no matter the radioactive source is held or scrapped. The multi-wavelength infrared sensor which appears in recent years can replace a radioactive quantitative sensor in some occasions, but the detection range is relatively small.
SUMMERY OF THE UTILITY MODEL
There are safe risk, with high costs to the radio penetration technique among the prior art scheme, the little problem of infrared sensor range, the utility model provides a surface material sensing device.
The utility model provides a following technical scheme: a surface-amplitude material sensing device comprises an oscillation and monitoring circuit, a conversion circuit in signal connection with the oscillation and monitoring circuit, a first resonant cavity and a second resonant cavity, wherein the central axes of the first resonant cavity and the second resonant cavity are coincident, and a measuring gap is arranged between the first resonant cavity and the second resonant cavity; the ends, close to each other, of the first resonant cavity and the second resonant cavity are both open, the end, far away from the first resonant cavity, of the second resonant cavity is closed, the end, far away from the second resonant cavity, of the first resonant cavity is provided with the oscillation and monitoring circuit, and the oscillation and monitoring circuit is in electromagnetic coupling with the first resonant cavity; the conversion circuit is provided with a connection cable.
Preferably, a panel is arranged at one end of each of the first resonant cavity and the second resonant cavity close to each other.
Preferably, a dust-proof film is arranged on the opening.
Preferably, the conversion circuit is disposed at an end of the oscillation and monitoring circuit away from the first resonant cavity.
The utility model has the advantages that: compared with the radiation penetration detection technology and the infrared detection technology, the utility model discloses utilize the characteristic that current microwave oscillation frequency and oscillation amplitude are sensitive to the ration and the moisture of medium, oscillation frequency and oscillation amplitude from the electric signal can separate out the ration and the moisture of the face width of cloth material of quilt measuring, have that detection speed is fast, the range is big advantage, can guarantee real-time technological parameter control, guarantee product quality, promote economic benefits, can not cause the damage to the face width of cloth material of quilt measuring yet; the oscillation circuit and the resonant cavity directly oscillate, so that the speed, accuracy and stability of acquiring microwave frequency and amplitude information can be maintained at a high level; the electromagnetic coupling mode eliminates cable attenuation and reflection interference of cable transmission, and improves the connection reliability; meanwhile, the structure is simple, the cost is low, and the operation and the maintenance are convenient.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: 1-oscillation and monitoring circuit, 2-conversion circuit, 21-connecting cable, 3-first resonant cavity, 4-second resonant cavity, 5-measuring gap and 6-panel.
Detailed Description
The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and reference numerals, so that those skilled in the art can implement the embodiments after studying the specification. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a surface-width material sensing device as shown in figure 1, which comprises an oscillation and monitoring circuit 1, a conversion circuit 2 in signal connection with the oscillation and monitoring circuit 1, a first resonant cavity 3 and a second resonant cavity 4 with coincident axle lines, and a measuring gap 5 arranged between the first resonant cavity and the second resonant cavity; the ends of the first resonant cavity and the second resonant cavity, which are close to each other, are both open, the end of the second resonant cavity 4, which is far away from the first resonant cavity 3, is closed, the end of the first resonant cavity 3, which is far away from the second resonant cavity 4, is provided with the oscillation and monitoring circuit 1, and the oscillation and monitoring circuit 1 is electromagnetically coupled with the first resonant cavity 3; the conversion circuit 2 is provided with a connection cable 21.
The oscillation and monitoring circuit is used for exciting microwave oscillation in the first resonant cavity and the second resonant cavity, monitoring the oscillation frequency and the oscillation amplitude of the microwave, and then transmitting the monitored signals to the conversion circuit, and one element can complete two functions of oscillation and monitoring due to the reversibility of the microwave element; the conversion circuit is used for converting the received signal into an industry standard electric signal and outputting the industrial standard electric signal through a connecting cable.
The central axes of the first resonant cavity and the second resonant cavity are superposed, one ends of the first resonant cavity and the second resonant cavity facing each other are both open, the other end of the second resonant cavity is closed, and the other end of the first resonant cavity is provided with an oscillation and monitoring circuit which is electromagnetically coupled with the first resonant cavity. The first resonant cavity and the second resonant cavity are separated by a measuring gap, and the web material to be detected passes through the measuring gap to cover the openings of the first resonant cavity and the second resonant cavity. The first resonant cavity and the second resonant cavity can be made of metal materials such as copper alloy and the like.
The utility model discloses at the during operation, at first can pass the measured surface width of cloth material from measuring the clearance, cover the opening of first resonant cavity and second resonant cavity, restart oscillation and monitoring circuit, according to current resonant cavity electromagnetic excitation, the coupling principle, oscillation and monitoring circuit are first, excite microwave oscillation in the second resonant cavity, the microwave arouses the change of oscillation frequency and oscillation amplitude when the process is surveyed the surface width of cloth material, the oscillation is monitored the signal after the change simultaneously with monitoring circuit and is transmitted for converting circuit and convert the industry standard signal of telecommunication, again through connecting cable output. The oscillation and monitoring circuit directly oscillates with the resonant cavity, so that the speed, accuracy and stability of acquiring microwave frequency and amplitude information can be maintained at a higher level, meanwhile, cable attenuation and reflection interference of cable transmission are eliminated in an electromagnetic coupling mode, and the connection reliability is improved. The detection process is simple, and the rapid detection of the detected surface-web material in a rapid flowing state can be realized through the rapid reaction of the microwave signals.
Penetrate detection technique and infrared detection technique for the radiation, the utility model discloses utilize current microwave oscillation frequency and oscillation amplitude to the ration of medium and the sensitive characteristic of moisture, can separate out the ration and the moisture of the face width of cloth material of being surveyed from it, have that detection speed is fast, the range is big advantage, can guarantee real-time technological parameter control, guarantee product quality promotes economic benefits, can not cause the damage to the face width of cloth material of being surveyed yet, simple structure, with low costs, operation and maintenance convenience simultaneously. Quantitative here means the weight of the measured web material per unit area.
Preferably, a panel 6 is disposed at one end of each of the first and second resonant cavities close to each other. The panel can provide more stable support for the detected panel material and can be made of stainless steel.
Preferably, a dust-proof film is arranged on the opening. The dustproof film can be a polypropylene or polyethylene film with small influence on microwave signals and is used for preventing impurities such as dust and the like from entering the resonant cavity to interfere the microwaves.
Preferably, the conversion circuit 2 is disposed at an end of the oscillation and monitoring circuit 1 away from the first resonant cavity 3 to increase the integration level and reduce the volume.
The foregoing is directed to one or more embodiments of the present invention, which are described in some detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. A web material sensing device comprising an oscillation and monitoring circuit (1) and a conversion circuit (2) in signal connection with the oscillation and monitoring circuit (1), characterized in that: the device also comprises a first resonant cavity (3) and a second resonant cavity (4) with the central axes coincident, and a measuring gap (5) is arranged between the first resonant cavity and the second resonant cavity; the ends, close to each other, of the first resonant cavity and the second resonant cavity are both open, the end, far away from the first resonant cavity (3), of the second resonant cavity (4) is closed, the end, far away from the second resonant cavity (4), of the first resonant cavity (3) is provided with the oscillation and monitoring circuit (1), and the oscillation and monitoring circuit (1) is in electromagnetic coupling with the first resonant cavity (3); the conversion circuit (2) is provided with a connection cable (21).
2. A web material sensing apparatus as defined in claim 1, wherein: and a panel (6) is arranged at one end of each of the first resonant cavity and the second resonant cavity close to each other.
3. A web material sensing apparatus as defined in claim 1, wherein: and a dustproof film is arranged on the opening.
4. A web material sensing apparatus as defined in claim 1, wherein: the conversion circuit (2) is arranged at one end, far away from the first resonant cavity (3), of the oscillation and monitoring circuit (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023310815.XU CN214374398U (en) | 2020-12-31 | 2020-12-31 | Web material sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023310815.XU CN214374398U (en) | 2020-12-31 | 2020-12-31 | Web material sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214374398U true CN214374398U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023310815.XU Active CN214374398U (en) | 2020-12-31 | 2020-12-31 | Web material sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214374398U (en) |
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2020
- 2020-12-31 CN CN202023310815.XU patent/CN214374398U/en active Active
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