CN217466964U - Flexible LC type wind speed detection device - Google Patents
Flexible LC type wind speed detection device Download PDFInfo
- Publication number
- CN217466964U CN217466964U CN202221759871.8U CN202221759871U CN217466964U CN 217466964 U CN217466964 U CN 217466964U CN 202221759871 U CN202221759871 U CN 202221759871U CN 217466964 U CN217466964 U CN 217466964U
- Authority
- CN
- China
- Prior art keywords
- wind speed
- flexible
- type wind
- inductance coil
- metal patch
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 38
- 239000000758 substrate Substances 0.000 claims abstract description 27
- 239000011241 protective layer Substances 0.000 claims abstract description 17
- 239000004642 Polyimide Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000003990 capacitor Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000035945 sensitivity Effects 0.000 description 4
- 238000010408 sweeping Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Images
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
The utility model discloses a flexible LC type wind speed detection device, this flexible LC type wind speed detection device is by flexible LC type air velocity transducer, base and wind speed reading circuit composition, flexible LC type air velocity transducer comprises flexible base plate, first metal paster, second metal paster, first inductance coil, second inductance coil, first insulating protective layer, second insulating protective layer; the first metal patch and the second metal patch are adhered to two sides of the flexible substrate and used as parallel plates of the capacitor; the first inductance coil and the second inductance coil are bonded on two sides of the flexible substrate, one end of each of the first inductance coil and the second inductance coil is connected with the first metal patch and the second metal patch respectively, and the other end of each of the first inductance coil and the second inductance coil is connected into the wind speed reading circuit. The flexible LC type wind speed detection device is low in cost, simple in structure and convenient to use, and can effectively realize wind speed measurement.
Description
(I) technical field
The utility model relates to a wind speed measuring device technical field specifically is a flexible LC type wind speed detection device.
(II) background of the invention
In the modern industrial production process, various flexible LC type wind speed detection devices are used for monitoring and controlling various parameters in the production process, and the application of the flexible LC type wind speed detection devices ensures that the production information is obtained more safely and reliably. Most of flexible LC type wind speed detection devices used in the existing monitoring system are active flexible LC type wind speed detection devices, energy needs to be provided by a power supply module, and the mode has the problems that the power supply is troublesome to replace, and the measurement system is difficult to adjust and maintain due to overlarge volume and mass. The passive flexible LC type wind speed sensing device has just incomparable advantages in these respects, so in recent years, the passive flexible LC type wind speed sensing device has been rapidly developed and applied. The resonant frequency varies with the wind speed. Increasing the windward height can effectively increase the sensitivity of the flexible LC type wind speed detection device, but can also reduce the maximum measurable wind speed. Therefore, the flexible LC type wind speed detecting device having different windward heights can realize speed detection with an improved dynamic range. The flexible LC type wind speed detection device is simple in structure and low in power consumption, and provides a new way for realizing wind speed detection.
Disclosure of the invention
The utility model discloses a remedy prior art's defect, provide a flexible LC type wind speed detection device.
A flexible LC type wind speed detection device is composed of a flexible LC type wind speed sensor, a base and a wind speed reading circuit, wherein the flexible LC type wind speed sensor is composed of a flexible substrate, a first metal patch, a second metal patch, a first inductance coil, a second inductance coil, a first insulating protective layer and a second insulating protective layer. The first metal patch and the second metal patch are adhered to two sides of the flexible substrate to form a capacitor together; the first inductance coil and the second inductance coil are respectively bonded on two sides of the flexible substrate, one end of the first inductance coil is connected with the first metal patch, the other end of the first inductance coil is connected into the wind speed reading circuit, one end of the second inductance coil is connected with the second metal patch, and the other end of the second inductance coil is connected into the wind speed reading circuit.
The flexible substrate is made of polyimide and is square.
The first metal patch and the second metal patch are copper sheets, and the shape of each copper sheet is square.
The first inductance coil and the second inductance coil are both quadrilateral planar spiral inductors, start from the middle point of one side of the first metal patch and the middle point of the second metal patch respectively, are encircled by a quadrilateral spiral, are finally led out from the middle point of one side of the flexible substrate, and are connected to a wind speed reading circuit.
The first insulating protective layer and the second insulating protective layer are made of polyimide and are used for protecting the flexible LC type wind speed detection device. Optionally, the flexible substrate, the first inductor coil, the second inductor coil, the first metal patch, the second metal patch and the insulating protective layer are bonded by an adhesive, so that the bonding is more stable.
The base is in a cuboid shape, a socket is arranged on the side face of the cuboid, the length of the socket is the same as the side length of the flexible substrate, the width of the socket is the thickness of the flexible substrate, the depth of the socket is adjustable, and the socket is used for fixing the flexible LC type wind speed sensor.
The wind speed reading circuit consists of a signal generator, a multiplier, a low-pass filter and a central processing unit; the signal generator is used for generating a frequency sweeping signal and outputting the frequency sweeping signal in two paths, wherein one path is connected with the flexible LC type wind speed sensor, and the other path is connected with the multiplier; the multiplier multiplies the sweep frequency signal by an output signal of the flexible LC type wind speed sensor to generate a low-frequency signal containing phase information of the flexible LC type wind speed sensor; the low-pass filter is used for extracting a signal containing the phase information of the flexible LC type wind speed sensor from the output signal of the multiplier; and the central processing unit calculates the resonance frequency to obtain wind speed information.
The utility model adopts the technical proposal that: when wind blows to the flexible LC type wind speed detection device, the flexible substrate, the first inductance coil and the second inductance coil deform and are influenced by the bending of the inductance coils, the inductance value decreases along with the increase of the wind speed, and the inductance value decreases according to the resonant frequency f 0 The calculation formula of (2):
the resonant frequency of the flexible LC type wind speed sensor is increased along with the increase of the wind speed, namely, the resonant frequency of the flexible LC type wind speed sensor has a monotonic function relation with the wind speed, and finally, the wind speed information is obtained by measuring the resonant frequency of the flexible LC type wind speed sensor through the wind speed reading circuit. The distance from the edge of the base of the flexible LC type wind speed detection device to the top end of the flexible LC type wind speed sensor is the windward height, the windward height of the flexible LC type wind speed detection device is increased, the sensitivity of wind speed measurement can be improved, and meanwhile, the maximum measurable wind speed is reduced, so that the flexible LC type wind speed detection devices with different windward heights can realize wind speed detection under different conditions. Through the design, the windward height of the flexible film can be changed by flexibly adjusting the depth of the base so as to adapt to different actual test environments and meet different test requirements.
In addition, compared with the traditional wind speed measuring device for the rotary fan blade, the scheme adopts the flexible film to sense the wind speed, so that the mechanical abrasion caused by the long-term use of the rotary fan blade is avoided, and the detection error is reduced; in addition, the flexible film of the flexible LC type wind speed detection device has higher sensitivity under the condition of low wind speed. The flexible LC type wind speed detection device has a simple structure, is convenient to use, and can effectively realize wind speed measurement; the power supply does not need to be installed, the principle and the structure are simple, the device is suitable for various complex environments, the production is easy, and the cost is low.
(IV) description of the drawings
FIG. 1 is a system block diagram of a flexible LC type wind speed sensing device;
FIG. 2 is a block diagram of a flexible LC type wind speed sensor;
FIG. 3 is a front view of a flexible LC type wind speed sensor;
FIG. 4 is a force deformation diagram of a flexible LC type wind speed sensor;
fig. 5 is a diagram showing a relationship between a position of the flexible LC type wind speed sensor fixed to the base and a wind direction.
(V) detailed description of the preferred embodiments
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Fig. 1 is a system block diagram of a flexible LC type wind speed sensing device according to the present invention. The wind speed reading circuit 20 is composed of a signal generator 21, a multiplier 22, a low-pass filter 23 and a central processing unit 24. The signal generator 21 is used for generating a frequency sweeping signal and outputting the frequency sweeping signal in two paths, wherein one path is connected with the flexible LC type wind speed sensor 10, and the other path is connected with the multiplier 22; the multiplier 22 multiplies the sweep frequency signal by the output signal of the flexible LC type wind speed sensor 10 to generate a low frequency signal containing phase information of the flexible LC type wind speed sensor 10; the low-pass filter 23 extracts a signal containing the phase information of the flexible LC type wind speed sensor 10 from the output signal of the multiplier 22; the central processor 24 calculates the resonant frequency and extracts the wind speed.
Fig. 2 is a structural view of the flexible LC type wind speed sensor 10. The flexible LC type wind speed sensor 10 is composed of a flexible substrate 18, a first metal patch 11, a second metal patch 15, a first inductance coil 12, a second inductance coil 16, a first insulating protective layer 14 and a second insulating protective layer 17. The first metal patch 11 and the second metal patch 15 are adhered to two sides of the flexible substrate 18 to form a capacitor together. The first inductance coil 12 and the second inductance coil 16 are adhered to two sides of the flexible substrate 18, and the other end is connected to a wind speed reading circuit 20. One end of the second metal patch 15 is connected with the second inductance coil 16, and the other end is connected to the wind speed reading circuit 20. The first insulating protective layer 14 and the second insulating protective layer 17 are polyimide for protecting the flexible LC type wind speed sensor 10. The flexible substrate 18, the first inductance coil 12, the first metal patch 11 and the first insulating protective layer 14 are bonded by using an adhesive; the flexible substrate 18, the second inductor 16, the second metal patch 15 and the second insulating protective layer 17 are bonded together by an adhesive.
Fig. 3 is a front view of the flexible LC type wind speed sensor 10, where one end of the first metal patch 11 is connected to the first inductor coil 12, and the first metal patch 11 is adhered to one side of the flexible substrate 18. The flexible substrate 18 is polyimide and is square; the first inductance coil 12 is a quadrilateral planar spiral inductance, starting from a middle point of one side of the first metal patch 11, and is surrounded by a quadrilateral spiral, and finally, the quadrilateral spiral is led out from a middle point of one side of the flexible substrate 18.
As shown in fig. 4, when wind blows on the flexible LC type wind speed sensor 10, the flexible substrate 18 of the flexible LC type wind speed sensor 10 is deformed to change the total inductance of the flexible LC type wind speed sensor 10, thereby changing the resonant frequency of the flexible LC type wind speed sensor 10, and the wind speed information is obtained by measuring the resonant frequency of the flexible LC type wind speed sensor 10 by the wind speed sensing circuit 20.
As shown in fig. 5, the base 30 is used to fix the flexible LC type wind speed sensor 10, and is shaped like a rectangular parallelepiped, a socket is formed on a side surface of the rectangular parallelepiped, a length of the socket is the same as a side length of the flexible substrate 18, a width of the socket is equal to a thickness of the flexible substrate 18, and a depth of the socket is adjustable, so as to fix the flexible LC type wind speed sensor 10, and the flexible substrate 18 is perpendicular to a wind direction. The sensitivity of wind speed measurement can be improved by increasing the windward height of the flexible LC type wind speed detection device, and the maximum measurable wind speed is reduced, so that the flexible LC type wind speed detection devices with different windward heights can realize wind speed detection with different performances. Through the design, the windward height of the flexible film can be changed by flexibly adjusting the depth of the base 30 so as to adapt to different actual test environments and meet different test requirements.
When the wind speed increases from zero but not more than the saturation wind speed, the flexible LC type wind speed sensor 10 is deformed, the total inductance value of the flexible LC type wind speed sensor 10 is decreased, and the resonance frequency of the flexible LC type wind speed sensor 10 is increased. By determining a monotonic function of wind speed to resonant frequency of the flexible LC type wind speed sensor 10. The wind speed sensing circuit 20 is used for calculating the resonant frequency of the flexible LC wind speed sensor 10, and the wind speed is obtained according to the monotonic function relation between the wind speed and the resonant frequency of the flexible LC wind speed sensor 10.
The present invention is not limited to the above-described embodiments. Those skilled in the art to which the invention pertains, and that the described embodiments may be modified, supplemented, or substituted in like manner, without departing from the spirit of the invention or except insofar as indicated by the appended claims, as set forth herein.
Claims (7)
1. The utility model provides a flexible LC type wind speed detection device, its characterized in that comprises flexible LC type wind speed sensor, base and wind speed reading circuit, flexible LC type wind speed sensor comprises flexible base plate, first metal paster, second metal paster, first inductance coil, second inductance coil, first insulating protective layer, second insulating protective layer, first metal paster with second metal paster bonds flexible base plate two sides constitutes the condenser jointly, first inductance coil with second inductance coil bonds respectively flexible base plate two sides, first inductance coil one end with first metal paster links to each other, and the other end inserts wind speed reading circuit, second inductance coil one end with second metal paster links to each other, and the other end inserts wind speed reading circuit.
2. The flexible LC-type wind speed detecting device according to claim 1, wherein: the flexible substrate is made of polyimide and is square.
3. The flexible LC-type wind speed detecting device according to claim 1, wherein: the first metal patch and the second metal patch are copper sheets, and the shape of each copper sheet is square.
4. The flexible LC-type wind speed detecting device according to claim 1, wherein: the first inductance coil and the second inductance coil are both quadrilateral planar spiral inductors, start from the middle point of one side of the first metal patch and the middle point of the second metal patch respectively, are encircled by a quadrilateral spiral, are finally led out from the middle point of one side of the flexible substrate, and are connected to a wind speed reading circuit.
5. The flexible LC-type wind speed detecting device according to claim 1, wherein: the first insulating protective layer and the second insulating protective layer are made of polyimide and are used for protecting the flexible LC type wind speed detection device.
6. The flexible LC-type wind speed detecting device according to claim 1, wherein: the base is in a cuboid shape, a socket is formed in the side face of the cuboid, the length of the socket is the same as the side length of the flexible substrate, the width of the socket is the thickness of the flexible substrate, the depth of the socket is adjustable, and the socket is used for fixing the flexible LC type wind speed sensor.
7. The flexible LC-type wind speed detecting device according to claim 1, wherein: the wind speed reading circuit consists of a signal generator, a multiplier, a low-pass filter and a central processing unit and is used for extracting the resonant frequency of the flexible LC type wind speed sensor and reading the wind speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221759871.8U CN217466964U (en) | 2022-07-08 | 2022-07-08 | Flexible LC type wind speed detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221759871.8U CN217466964U (en) | 2022-07-08 | 2022-07-08 | Flexible LC type wind speed detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217466964U true CN217466964U (en) | 2022-09-20 |
Family
ID=83252896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221759871.8U Expired - Fee Related CN217466964U (en) | 2022-07-08 | 2022-07-08 | Flexible LC type wind speed detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217466964U (en) |
-
2022
- 2022-07-08 CN CN202221759871.8U patent/CN217466964U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4856652B2 (en) | Energy-collecting surface acoustic wave-based no-power / wireless sensor | |
| CN103954394B (en) | Based on the pliable pressure sensor of the high-elastic polymkeric substance of dielectric and the method for sensed pressure | |
| JP5047833B2 (en) | Displacement sensor system and displacement sensor | |
| CN103076464B (en) | Wind-speed and wind-direction sensor | |
| CN103213942B (en) | A kind of preparation method of passive and wireless electric capacity formula humidity sensor | |
| CN109580981A (en) | Air velocity transducer based on flexible inductance-silicon substrate inductance structure | |
| CN203365045U (en) | Capacitive air pressure sensor of microelectronic mechanical system | |
| CN103675480A (en) | Mini electric field sensor with double-clamped piezoelectric beams | |
| CN106569155B (en) | A kind of cantilever beam interdigital capacitor magnetic field sensing probe based on giant magnetostrictive thin film | |
| CN201697932U (en) | Capacitance type anemoclinograph of wind turbine generator set | |
| CN102466736A (en) | Capacitive accelerometer of Z axis | |
| CN112033277B (en) | Curvature sensor based on paper folding structure | |
| CN105043422A (en) | MEMS resonant charge sensor with high resolution and wide dynamic range and detection method | |
| CN217466964U (en) | Flexible LC type wind speed detection device | |
| CN110967134B (en) | Magnetic precise constraint type magnetic focusing torque sensor and torque calculation method | |
| CN105203251A (en) | Pressure sensing chip and processing method thereof | |
| CN107449415A (en) | Nanometer grating micromechanical gyro | |
| CN206876312U (en) | Mems pressure sensor | |
| CN203825032U (en) | An ultrasonic wave wind measurement apparatus | |
| CN105300573B (en) | A kind of beam diaphragm structure piezoelectric transducer and preparation method thereof | |
| CN207197535U (en) | Nanometer grating micromechanical gyro | |
| CN207280514U (en) | A kind of PZT sensors based on MEMS | |
| CN107144378A (en) | Mems pressure sensor | |
| CN115575661A (en) | Two-dimensional capacitance differential MEMS wind speed and direction sensor | |
| CN205049287U (en) | Passive wireless pressure sensing chip of thing networking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220920 |