CN112747858A - Quartz piezoelectric sensor - Google Patents
Quartz piezoelectric sensor Download PDFInfo
- Publication number
- CN112747858A CN112747858A CN201911055379.5A CN201911055379A CN112747858A CN 112747858 A CN112747858 A CN 112747858A CN 201911055379 A CN201911055379 A CN 201911055379A CN 112747858 A CN112747858 A CN 112747858A
- Authority
- CN
- China
- Prior art keywords
- adjusting device
- fixing device
- piezoelectric sensor
- fixing
- fixed cover
- 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.)
- Pending
Links
- 239000010453 quartz Substances 0.000 title claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 21
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/16—Measuring force or stress, in general using properties of piezoelectric devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/08—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of piezoelectric devices, i.e. electric circuits therefor
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/101—Piezoelectric or electrostrictive devices with electrical and mechanical input and output, e.g. having combined actuator and sensor parts
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of piezoelectric sensors and discloses a quartz piezoelectric sensor which comprises a fixing device, wherein an external joint is arranged on the outer surface of the fixing device, the top of the fixing device is in threaded connection with an upper adjusting device, a lower pressing device is clamped inside the upper adjusting device, a screw is clamped at the top of the upper adjusting device, the bottom of an inner cavity of the fixing device is fixedly connected with an insulating sleeve, the bottom of the fixing device is in threaded connection with a lower adjusting device, and two piezoelectric materials are fixedly mounted at the top of the lower adjusting device. This quartzy piezoelectric sensor, through mutually supporting of fixing device and last adjusting device, push down the device, adjusting device down, when piezoelectric material's thickness attenuation, adjusting device and lower adjusting device's position can be adjusted this moment for the bottom of clamp plate and the top of backup pad contact with piezoelectric material all the time, are convenient for improve device detection accuracy.
Description
Technical Field
The invention relates to the technical field of piezoelectric sensors, in particular to a quartz piezoelectric sensor.
Background
The piezoelectric sensor is based on piezoelectric effect and is a self-generating and electromechanical conversion type sensor, its sensitive element is made of piezoelectric material, after the piezoelectric material is stressed, its surface can produce electric charge, said electric charge can be amplified by charge amplifier and measuring circuit, and can be converted into non-electric physical quantity.
When the existing piezoelectric pressure sensor is used for pressure detection, the elastic deformation amount of a piezoelectric material is easily reduced after long-term use, the thickness of the piezoelectric pressure sensor is gradually reduced, so that a gap exists between the bottom of an upper cover and the top of the piezoelectric material, and the accuracy of data possibly measured when the detected pressure is small is low.
Disclosure of Invention
In view of the deficiencies of the prior art, the present invention provides a quartz piezoelectric sensor, which solves the problems of the background art.
The invention provides the following technical scheme: the utility model provides a quartzy piezoelectric sensor, includes fixing device, fixing device's surface is provided with the outer joint, fixing device's top threaded connection has last adjusting device, the inside joint of going up adjusting device has the push-down device, the top joint of going up adjusting device has the screw, the insulating cover of bottom fixedly connected with of fixing device inner chamber, fixing device's bottom threaded connection has adjusting device down, adjusting device's top fixed mounting has two piezoelectric material, two down fixedly connected with electrode between the piezoelectric material.
Preferably, fixing device includes the shell, the top of shell inner wall is provided with internal thread I, the inner wall fixed mounting of internal thread I has the baffle, the bottom of shell inner wall is provided with internal thread II.
Preferably, the bottom of the outer surface of the shell is provided with a rectangular groove, and the outer surface of the fixing device is provided with scale marks positioned on two sides of the rectangular groove.
Preferably, go up adjusting device including fixed cover, the bottom of fixed cover is provided with the baffle, the top of fixed cover surface is provided with the scale mark, the bottom of fixed cover surface is provided with external screw thread I, the inside joint of fixed cover has the collar, the joint has the push-down device between fixed cover and the collar.
Preferably, the pressing device comprises a pressing plate, a hexagon socket is formed in the top of the pressing plate, a connecting plate is arranged on the outer surface of the pressing plate, and the connecting plate is clamped between the fixing sleeve and the mounting ring.
Preferably, the lower adjusting device comprises an adjusting plate, a supporting plate is arranged at the top of the adjusting plate, and an external thread II is arranged on the outer surface of the adjusting plate.
The invention has the following beneficial effects:
this quartzy piezoelectric sensor, through mutually supporting of fixing device and last adjusting device, push down the device, adjusting device down, when piezoelectric material's thickness attenuation, can adjust adjusting device and adjusting device's position down this moment for the bottom of clamp plate and the top of backup pad contact with piezoelectric material all the time, are convenient for improve the detection precision of device.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a structural sectional view of the present invention.
FIG. 3 is a schematic view of a fixing device according to the present invention.
Fig. 4 is a schematic structural view of an upper adjusting device of the present invention.
FIG. 5 is a schematic view of a pressing device according to the present invention.
FIG. 6 is a schematic view of the structure of the lower adjustment device of the present invention.
In the figure: 1. a fixing device; 11. a housing; 12. an internal thread I; 13. a partition plate; 14. an internal thread II; 2. an outer joint; 3. an upper adjusting device; 31. fixing a sleeve; 32. a baffle plate; 33. an external thread I; 34. a mounting ring; 4. a pressing device; 41. pressing a plate; 42. an inner hexagonal hole; 43. a connecting plate; 5. a screw; 6. an insulating sleeve; 7. a lower adjustment device; 71. an adjusting plate; 72. a support plate; 73. an external thread II; 8. a piezoelectric material; 9. and an electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, a quartz piezoelectric sensor includes a fixing device 1, an external joint 2 is disposed on an outer surface of the fixing device 1, an upper adjusting device 3 is connected to a top thread of the fixing device 1, a lower pressing device 4 is clamped inside the upper adjusting device 3, a screw 5 is clamped on a top of the upper adjusting device 3, an insulating sleeve 6 is fixedly connected to a bottom of an inner cavity of the fixing device 1, a lower adjusting device 7 is connected to a bottom thread of the fixing device 1, two piezoelectric materials 8 are fixedly mounted on a top of the lower adjusting device 7, and an electrode 9 is fixedly connected between the two piezoelectric materials 8.
The fixing device 1 comprises a shell 11, wherein an internal thread I12 is arranged at the top of the inner wall of the shell 11, a partition plate 13 is fixedly arranged on the inner wall of the internal thread I12, and an internal thread II 14 is arranged at the bottom of the inner wall of the shell 11;
wherein, the bottom of the outer surface of the shell 11 is provided with a rectangular groove, and the outer surface of the fixing device 1 is provided with scale marks positioned at two sides of the rectangular groove, so that the height value adjusted by the lower adjusting device 7 can be observed conveniently;
the upper adjusting device 3 comprises a fixing sleeve 31, a gap is reserved between the bottom of the fixing sleeve 31 and the top of an insulating sleeve 6, later-stage adjustment can be facilitated, a baffle 32 is arranged at the bottom of the fixing sleeve 31, scale marks are arranged at the top of the outer surface of the fixing sleeve 31, external threads I33 are arranged at the bottom of the outer surface of the fixing sleeve 31, a mounting ring 34 is clamped inside the fixing sleeve 31, a pressing device 4 is clamped between the fixing sleeve 31 and the mounting ring 34, the height of the pressing device 4 can be adjusted by rotating the fixing sleeve 31, the bottom of a pressing plate 41 can be always in contact with the top of a piezoelectric material 8, and detection accuracy of the device is improved;
the pressing device 4 comprises a pressing plate 41, the top of the pressing plate 41 is provided with a hexagon socket 42, the outer surface of the pressing plate 41 is provided with a connecting plate 43, the connecting plate 43 is clamped between the fixing sleeve 31 and the mounting ring 34, and the upper adjusting device 3 and the pressing device 4 are locked through screws 5;
wherein, adjusting device 7 includes regulating plate 71 down, leaves the clearance between the top of regulating plate 71 and the bottom of baffle 13, the later stage height-adjusting of being convenient for, and the top of regulating plate 71 is provided with support plate 72, and the surface of regulating plate 71 is provided with external screw thread II 73, can adjust the position at support plate 72 top through rotating regulating plate 71 for support plate 72 can contact with piezoelectric material 8's bottom all the time.
The theory of operation, after the device has been used for a long time, piezoelectric material 8's thickness attenuation, adjusting device 3 and adjusting device 7 down can be rotated this moment, interval between the two is adjusted, make piezoelectric material 8 and backup pad 72 and clamp plate 41 remain the state of contact all the time, piezoelectric material 8 also can detect when the top of pushing down device 4 receives less pressure like this, the detection precision of device has been improved, the scale mark through observing shell 11 and fixed cover 31 surface can be to the height of adjusting and restrict, keep electrode 9 and external joint 2 to be in same horizontal plane all the time.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A quartz piezoelectric sensor comprising a fixing device (1), characterized in that: the surface of fixing device (1) is provided with outer joint (2), adjusting device (3) are gone up to the top threaded connection of fixing device (1), the inside joint of going up adjusting device (3) has push down device (4), the top joint of going up adjusting device (3) has screw (5), the insulating cover of bottom fixedly connected with (6) of fixing device (1) inner chamber, adjusting device (7) are down connected to the bottom threaded connection of fixing device (1), the top fixed mounting of adjusting device (7) has two piezoelectric material (8), two down fixedly connected with electrode (9) between piezoelectric material (8).
2. A quartz piezoelectric sensor according to claim 1, wherein: fixing device (1) includes shell (11), the top of shell (11) inner wall is provided with internal thread I (12), the inner wall fixed mounting of internal thread I (12) has baffle (13), the bottom of shell (11) inner wall is provided with internal thread II (14).
3. A quartz piezoelectric sensor according to claim 2, wherein: the bottom of the outer surface of the shell (11) is provided with a rectangular groove, and the outer surface of the fixing device (1) is provided with scale marks positioned on two sides of the rectangular groove.
4. A quartz piezoelectric sensor according to claim 1, wherein: go up adjusting device (3) including fixed cover (31), the bottom of fixed cover (31) is provided with baffle (32), the top of fixed cover (31) surface is provided with the scale mark, the bottom of fixed cover (31) surface is provided with external screw thread I (33), the inside joint of fixed cover (31) has collar (34), the joint has down to press device (4) between fixed cover (31) and collar (34).
5. A quartz piezoelectric sensor according to claim 1, wherein: the pressing device (4) comprises a pressing plate (41), a hexagon socket (42) is formed in the top of the pressing plate (41), a connecting plate (43) is arranged on the outer surface of the pressing plate (41), and the connecting plate (43) is clamped between the fixing sleeve (31) and the mounting ring (34).
6. A quartz piezoelectric sensor according to claim 1, wherein: lower adjusting device (7) are including regulating plate (71), the top of regulating plate (71) is provided with backup pad (72), the surface of regulating plate (71) is provided with external screw thread II (73).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055379.5A CN112747858A (en) | 2019-10-31 | 2019-10-31 | Quartz piezoelectric sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911055379.5A CN112747858A (en) | 2019-10-31 | 2019-10-31 | Quartz piezoelectric sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112747858A true CN112747858A (en) | 2021-05-04 |
Family
ID=75645529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911055379.5A Pending CN112747858A (en) | 2019-10-31 | 2019-10-31 | Quartz piezoelectric sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112747858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689166A (en) * | 2022-03-23 | 2022-07-01 | 西安交通大学 | Piezoresistive ion polymer hydrophone structure |
-
2019
- 2019-10-31 CN CN201911055379.5A patent/CN112747858A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114689166A (en) * | 2022-03-23 | 2022-07-01 | 西安交通大学 | Piezoresistive ion polymer hydrophone structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4432238A (en) | Capacitive pressure transducer | |
| CN103487474B (en) | A kind of have the MEMS capacitive humidity sensor that high sensitivity quickly responds | |
| EP1219940A3 (en) | Capacitive pressure sensors | |
| TW201432237A (en) | Method and arrangement for measuring vacuum pressure with a measurement cell arrangement | |
| CN108593187A (en) | Ceramic capacitive pressure sensor and the method for improving pressure detecting precision | |
| CN112747858A (en) | Quartz piezoelectric sensor | |
| RU2537517C1 (en) | Semiconductor pressure transducer | |
| CN201765027U (en) | Capacitive water level sensor | |
| CN209102262U (en) | A kind of anti high overload bellow-type ceramic resistive type pressure sensor | |
| CN208984258U (en) | A kind of novel pressure sensor | |
| CN204694273U (en) | A kind of variable-area capacitive sensor | |
| CN2669133Y (en) | Double cantilever concrete structure strain measuring meter | |
| CN216090484U (en) | Gap plate with knee joint pressure detection function | |
| CN206847828U (en) | Variable area formula capacitive pressure transducer | |
| CN204881935U (en) | Capacitanc pressure sensing device | |
| CN208968579U (en) | Portable electric eddy current sensor and the compound calibrating installation of vibrating sensor | |
| CN2884162Y (en) | Capacitive weighing sensor | |
| CN113576456A (en) | Gap plate with knee joint pressure detection function | |
| CN210037064U (en) | Pressure transmitter convenient to dismouting | |
| CN209069489U (en) | A kind of inductor with monitoring pressure difference function | |
| CN109029826A (en) | A kind of anti high overload bellow-type ceramic resistive type pressure sensor | |
| CN212931749U (en) | Moment sensor for bullet production and processing | |
| CN204301910U (en) | Two display pressure transmitter | |
| CN220582120U (en) | Industrial liquid level sensor | |
| CN2530245Y (en) | Thick film tilt angle sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |