CN120507037B - Piezoelectric vibration sensor with radiation-resistant function - Google Patents
Piezoelectric vibration sensor with radiation-resistant functionInfo
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- CN120507037B CN120507037B CN202510998202.8A CN202510998202A CN120507037B CN 120507037 B CN120507037 B CN 120507037B CN 202510998202 A CN202510998202 A CN 202510998202A CN 120507037 B CN120507037 B CN 120507037B
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Abstract
The invention relates to a piezoelectric vibration sensor with radiation resistance function, which is applied to the technical field of vibration sensors, and comprises a base, a shielding base shell, a shielding housing, a colloid lining, an inductance foil, an on-off detection circuit and an ionization alarm module, wherein the shielding base shell and the shielding housing are combined to form an ionization radiation shielding structure, so that the protection capability of a sensitive piezoelectric wafer unit is effectively improved, when the shielding housing is broken, the inductor foil clung to the inner wall of the shielding shell is torn along with the inductor foil, so that the connection between the inductor foil and the on-off detection circuit is disconnected, an alarm is given through the ionization alarm module, and meanwhile, the broken shielding shell is clung to the outer surface of the colloid lining, so that the shielding shell is convenient to maintain an original state outside the colloid lining, the shielding capability of the shielding shell is continuously provided, and a worker can conveniently and timely process faults.
Description
Technical Field
The invention relates to a piezoelectric vibration sensor, in particular to a piezoelectric vibration sensor with a radiation resistance function, which is applied to the technical field of vibration sensors.
Background
The piezoelectric vibration sensor is a sensor based on piezoelectric effect, the sensitive element of the vibration sensor is made of piezoelectric material, the surface of the piezoelectric material generates charges after being stressed, the charges are amplified by a charge amplifier and a measuring circuit and converted into electric quantity output in direct proportion to the applied external force after being subjected to impedance conversion, and the piezoelectric material in the vibration sensor is easy to damage due to radiation influence, so that the use of the vibration sensor in a high-radiation environment is influenced.
Chinese patent CN109269626a discloses a piezoelectric vibration sensor, the piezoelectric element includes upper electrode layer, at least two ceramic plates, conduction layer and lower electrode layer that set gradually, in this embodiment, the piezoelectric element includes upper electrode layer, first ceramic plate, conduction layer, second ceramic plate and lower electrode layer that set gradually, chinese patent CN115980723a discloses a high temperature radiation-resistant ultrasonic ranging sensor, protects alloy matching component, piezoelectric ceramic component and backing through the control, delays the destruction that uses under the high temperature environment to cause to whole device inflation, utilizes the ceramic characteristic enhancement of piezoelectric ceramic component to radiant environment's adaptability simultaneously, adopts the radiation resistance of metal and alloy material reinforcing means, improves the high temperature resistance of sensor.
The ceramic is often used as the shielding layer to the radiation, and the core value of ceramic shielding layer is extremely high temperature, radiation, corrosion environment protection in vibration sensor, but the brittle nature of ceramic appears breaking under the circumstances of mechanical stress easily, and after the ceramic shielding layer appears breaking simultaneously, the staff can not in time obtain the trouble warning, is difficult to accomplish timely fault handling.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the technical problems that the brittleness of the ceramic is easy to break under the condition of mechanical stress, and the staff cannot timely get fault reminding after the ceramic shielding layer breaks, so that timely fault treatment is difficult to achieve.
In order to solve the problems, the invention provides a piezoelectric vibration sensor with a radiation resistance function, which comprises a base, wherein a shielding base shell is fixedly connected inside the base, a wire core module is fixedly connected inside the shielding base shell, the middle part of the wire core module is fixedly connected with a central shaft, a sensitive piezoelectric wafer unit is sleeved in the middle part of the central shaft, mass blocks are sleeved at the top and the bottom of the central shaft, and the two mass blocks are respectively in abutting connection with the top end and the bottom end of the sensitive piezoelectric wafer unit;
The top fixedly connected with shielding housing of shielding base shell, shielding base shell and shielding housing are made by ceramic material, and sensitive piezoelectric wafer unit and quality piece are all in inside the shielding housing, and the inside cover of shielding housing is equipped with the colloid bush, and colloid bush's external surface fixation inlays has inductance foil, and inductance foil is fixed bonding with the inner wall of shielding housing, and the sinle silk module contains break-make detection circuit, inductance foil and break-make detection circuit fixed connection, and break-make detection circuit's output is connected with ionization alarm module.
In the piezoelectric vibration sensor with the radiation-resistant function, when the shielding case is broken, the inductance foil is torn along with the breaking of the shielding case, so that the connection between the inductance foil and the on-off detection circuit is disconnected, and the breaking alarm of the shielding case is realized.
As a further improvement of the application, the outer surface of the colloid lining is provided with the concave grooves which are distributed in a ring shape, the colloid lining is made of a silicon rubber material, the concave grooves of the colloid lining are designed to enable the colloid lining to be radially contracted, so that the colloid lining is conveniently plugged into the shielding housing, and the broken shielding housing still adheres to the colloid lining through the elasticity of the colloid lining made of the silicon rubber material, so that the partial shielding capability of the shielding housing is maintained, and the staff can conveniently and timely handle faults.
As a further improvement of the application, the inductance foil is bent in a U shape, and the inductance foil is made of aluminum foil material, so that the inductance foil is arranged in a larger area, the aluminum foil material has excellent conductivity, and the inductance foil is convenient to tear along with the rupture of the shielding shell.
As a further improvement of the application, the shielding shell is sleeved with a protective shell, the protective shell is fixedly connected with the base, the bottom of the base is fixedly connected with a grounding wire, the protective shell is used for protecting the shielding shell, and the protective shell is used for shielding electromagnetic radiation.
As a further improvement of the application, a buffer ring is fixedly sleeved between the protective shell and the shielding shell, the buffer ring is made of aerogel materials, the protective shell is made of boron aluminum alloy and boron steel alloy materials, the protective shell made of boron aluminum alloy and boron steel alloy materials effectively improves electromagnetic radiation shielding capacity, and the buffer capacity of the protective shell and the shielding base shell is effectively realized through the buffer ring, so that the protection effect on the shielding base shell is further improved.
As a further improvement supplement of the application, the tensile copper net is embedded in the colloid lining, the grounding wire is fixedly connected with the tensile copper net, the tensile capacity of the colloid lining is effectively improved by utilizing the tensile copper net, and the situation of excessive fracture dislocation of the shielding housing is effectively avoided.
In addition to the improvement of the application, the wire core module further comprises a current detection circuit, the tensile copper net is fixedly connected with the current detection circuit, the output end of the current detection circuit is connected with the electromagnetic alarm module, the second shielding for electromagnetic radiation is realized through the tensile copper net, whether current exists in the tensile copper net or not is detected through the current detection circuit, and whether the protective shell is damaged or not is judged.
In summary, the ionizing radiation shielding structure is formed by combining the shielding base shell and the shielding shell, so that the protective capability of the sensitive piezoelectric wafer unit is effectively improved, when the shielding shell is broken, the inductance foil clung to the inner wall of the shielding shell is torn along with the breakage, so that the connection between the inductance foil and the on-off detection circuit is disconnected, further, an alarm is given through the ionizing alarm module, and meanwhile, the broken shielding shell is clung to the outer surface of the colloid lining, so that the original state of the shielding shell is maintained outside the colloid lining, the shielding capability of the shielding shell is continuously provided, and the staff can process faults in time conveniently.
Drawings
Fig. 1 is a perspective view of a first embodiment of the present application;
fig. 2 is a cross-sectional perspective view of a first embodiment of the present application;
FIG. 3 is a perspective view showing a gel bushing according to a first embodiment of the present application;
fig. 4 is a perspective view showing a structure of an inductor foil according to a first embodiment of the present application;
FIG. 5 is a system diagram of an ionization warning module according to a first embodiment of the present application;
fig. 6 is a perspective view showing a structure of a second embodiment of the present application;
FIG. 7 is a cross-sectional perspective view of a second embodiment of the present application;
FIG. 8 is a perspective view of a tensile copper mesh according to a second embodiment of the present application;
Fig. 9 is a system diagram of an electromagnetic alarm module according to a second embodiment of the present application.
The reference numerals in the figures illustrate:
1. The high-voltage power supply comprises a base, 101, a shielding base shell, 102, a wire core module, 103, a central shaft, 104, a sensitive piezoelectric wafer unit, 105, a mass block, 2, a shielding shell, 201, a colloid bushing, 202, an inductance foil, 203, a concave groove, 3, a protective shell, 301, a grounding wire, 302, a buffer ring, 303 and a tensile copper net.
Detailed Description
Two embodiments of the present application will be described in detail with reference to the accompanying drawings.
First embodiment:
Fig. 1 to 2 show a piezoelectric vibration sensor with radiation resistance, including a base 1, a shielding base shell 101 is fixedly connected in the base 1, a wire core module 102 is fixedly connected in the shielding base shell 101, the wire core module 102 is a signal circuit set of the vibration sensor and is used for processing monitoring signals and transmitting the signals to a control terminal of the vibration sensor, the control terminal of the vibration sensor is not described in detail in the technical scheme, a central shaft 103 is fixedly connected in the middle of the wire core module 102, a sensitive piezoelectric wafer unit 104 is sleeved in the middle of the central shaft 103, a mass block 105 is sleeved at the top and the bottom of the central shaft 103, the two mass blocks 105 are respectively in abutting connection with the top end and the bottom end of the sensitive piezoelectric wafer unit 104, a shielding housing 2 is fixedly connected at the top of the shielding base shell 101, the shielding base shell 101 and the shielding housing 2 are both made of ceramic materials, and the sensitive piezoelectric wafer unit 104 and the mass block 105 are all positioned in the shielding housing 2;
The shielding base shell 101 and the shielding shell 2 are both made of ceramic materials, the ceramic materials have excellent ionizing radiation shielding capability, particularly zirconia ceramics are preferred, the zirconia ceramics have strong resistance to HF acid, molten alkali metal and the like, and the ionizing radiation shielding structure is formed by combining the shielding base shell 101 and the shielding shell 2, so that the ionizing radiation protection capability of the sensitive piezoelectric wafer unit 104 is effectively improved.
Fig. 2 to 5 show that the inner part of the shielding shell 2 is sleeved with a colloid liner 201, the outer surface of the colloid liner 201 is fixedly embedded with an inductance foil 202, the inductance foil 202 is fixedly adhered to the inner wall of the shielding shell 2, the wire core module 102 comprises an on-off detection circuit, the inductance foil 202 is fixedly connected with the on-off detection circuit, the on-off detection circuit is a circuit design commonly used in the technical field, whether current can circulate in the circuit or not is judged by periodically transmitting current pulses to the circuit, the output end of the on-off detection circuit is connected with an ionization alarm module, particularly, the ionization alarm module comprises a communication part and a working part, when the on-off detection circuit detects that no current normally circulates, the information can also reach a control terminal of the vibration sensor along with signal transmission of the vibration sensor in a signal mode, and the specific signal transmission mode selects wired transmission and wireless transmission according to the signal transmission mode of the vibration sensor, the communication part of the ionization alarm module receives the signal of the control terminal of the vibration sensor, the working part of the ionization alarm module adopts a buzzer and lamplight flashing mode to alarm, the model selection, specific connection and power supply methods of the communication part and the working part of the ionization alarm module are all known techniques of the technical personnel in the field, the technical personnel can reasonably select according to the actual use condition so as to meet the use requirement of the application, the inductance foil 202 is in U-shaped bending arrangement, the inductance foil 202 is made of aluminum foil materials, the arrangement of the inductance foil 202 with larger area is realized, the U-shaped bending inductance foil 202 is more convenient to connect in series, the conductivity of the aluminum foil materials is excellent, the tearing resistance of the aluminum foil is weak, the inductance foil 202 is convenient to tear along with the rupture of the shielding housing 2, the outer surface of the colloid liner 201 is provided with the concave grooves 203 which are distributed in an annular shape, the colloid liner 201 is made of a silicon rubber material, the concave grooves 203 of the colloid liner 201 are designed to enable the colloid liner 201 to be radially contracted, so that the colloid liner 201 is conveniently plugged into the shielding housing 2, and the broken shielding housing 2 is still attached to the colloid liner 201 through the elasticity of the colloid liner 201 made of the silicon rubber material, so that the partial shielding capability of the shielding housing 2 is maintained, and the staff can conveniently and timely handle faults;
When the shielding shell 2 breaks, the inductance foil 202 tightly attached to the inner wall of the shielding shell 2 is torn along with the breakage, so that the connection between the inductance foil 202 and the on-off detection circuit is disconnected, an ionization alarm module connected with the on-off detection circuit alarms to remind a worker of timely processing faults, meanwhile, the broken shielding shell 2 is attached to the outer surface of the colloid liner 201, the shielding shell 2 maintains an original state outside the colloid liner 201 and is in a state similar to a spliced ceramic in the prior art, and compared with the whole ceramic, the radiation shielding capacity of the spliced ceramic is reduced, the shielding capacity of the shielding shell 2 is continuously provided, the complete failure of the radiation shielding capacity is effectively avoided, and the worker is convenient to timely process the faults.
Second embodiment:
Fig. 6 to 7 show that the shielding case 2 is externally sleeved with a protective shell 3, the protective shell 3 is fixedly connected with the base 1, the bottom of the base 1 is fixedly connected with a grounding wire 301, the protective shell 3 provides protection for the shielding case 2, the protective shell 3 shields electromagnetic radiation, a buffer ring 302 is fixedly sleeved between the protective shell 3 and the shielding case 2, the buffer ring 302 is made of aerogel materials, the protective shell 3 is made of boron aluminum alloy and boron steel alloy materials, the protective shell 3 made of boron aluminum alloy and boron steel alloy materials effectively improves the electromagnetic radiation shielding capacity, and the buffer capacity of the protective shell 3 and the shielding base shell 101 is effectively realized through the buffer ring 302, so that the protection effect on the shielding base shell 101 is further improved;
The protective housing 3 made of boron aluminum alloy and boron steel alloy materials, and the grounding of the grounding wire 301 is conductive, so that the electromagnetic radiation shielding capacity of the sensor is effectively improved, meanwhile, a protection effect is provided for the shielding housing 2, the buffering capacity of the protective housing 3 and the shielding base housing 101 is effectively achieved through the buffer ring 302, the impact collision of the protective housing 3 is effectively avoided, the transmission to the shielding housing 2 is effectively avoided, and further the cracking fault of the shielding housing 2 is effectively avoided.
Fig. 7 to 9 show that, a tensile copper net 303 is embedded in the colloid liner 201, a grounding wire 301 is fixedly connected with the tensile copper net 303, the tensile capability of the colloid liner 201 is effectively improved by utilizing the tensile copper net 303, the situation that excessive fracture and dislocation occur in a shielding shell 2 is effectively avoided, a wire core module 102 further comprises a current detection circuit, the tensile copper net 303 is fixedly connected with the current detection circuit, the current detection circuit is a circuit design commonly used in the technical field and is mainly used for judging whether current exists in the circuit, an electromagnetic alarm module is connected to the output end of the current detection circuit, the electromagnetic alarm module has the same structure as the ionization alarm module in the first embodiment, the communication part of the electromagnetic alarm module receives signals of a control terminal of a vibration sensor when the current detection circuit detects that current movement exists in the circuit, the working part of the electromagnetic alarm module adopts a mode of a buzzer and a lamplight flickering specific detail to alarm, the communication part and the working part of the electromagnetic alarm module are selected, the specific connection and the method of the electromagnetic alarm module are the technical field, and the practical requirements of the technical field can be met according to the practical requirements of the technical field;
The tensile copper net 303 is embedded in the colloid liner 201, so that the tensile capacity of the colloid liner 201 is effectively improved, the shielding shell 2 which is drawn in and broken by the shielding shell 2 maintains the original shape, further, excessive breakage dislocation of the shielding shell 2 is effectively avoided, more radiation shielding capacity of the shielding shell 2 after breakage is effectively improved, the electromagnetic radiation shielding capacity of a second layer is built through the tensile copper net 303 when the protective shell 3 is broken due to corrosion, and whether current exists in the tensile copper net 303 is detected through a current detection circuit, whether the protective shell 3 is broken or not is judged, then an electromagnetic alarm module is utilized for alarming, and workers are convenient to timely process the fault problem of the protective shell 3.
The present application is not limited to the above-described embodiments, which are adopted in connection with the actual demands, and various changes made by the person skilled in the art without departing from the spirit of the present application are still within the scope of the present application.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510998202.8A CN120507037B (en) | 2025-07-21 | 2025-07-21 | Piezoelectric vibration sensor with radiation-resistant function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510998202.8A CN120507037B (en) | 2025-07-21 | 2025-07-21 | Piezoelectric vibration sensor with radiation-resistant function |
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| CN120507037B true CN120507037B (en) | 2025-09-16 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6281685B1 (en) * | 1995-08-29 | 2001-08-28 | The United States Of America As Represented By The Secretary Of The Army | Cable shield fault locator |
| CN223037970U (en) * | 2024-09-19 | 2025-06-27 | 成都派瑞奥传感技术有限公司 | An IEPE circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3019425B2 (en) * | 1991-02-05 | 2000-03-13 | 株式会社明電舎 | Semi-anechoic room combined radio shield room |
| JP6336865B2 (en) * | 2014-09-09 | 2018-06-06 | 日立オートモティブシステムズ株式会社 | Physical quantity sensor |
| CN209435110U (en) * | 2019-03-11 | 2019-09-24 | 苏州铂韬新材料科技有限公司 | A kind of electric car DC/DC converter shielding mould group |
| KR20220061783A (en) * | 2020-11-06 | 2022-05-13 | 삼성전자주식회사 | Electronic device including noise detection module |
| CN112461559A (en) * | 2020-11-26 | 2021-03-09 | 江苏江凌测控科技股份有限公司 | Current type multi-parameter sensor for monitoring state of train running part |
| CN214251260U (en) * | 2021-03-31 | 2021-09-21 | 国网四川省电力公司检修公司 | Wireless vibration sensor |
| CN114113699A (en) * | 2021-11-03 | 2022-03-01 | 广东天波信息技术股份有限公司 | An anti-disassembly device, method and electronic device |
| CN120321933A (en) * | 2025-04-21 | 2025-07-15 | 广州方邦电子股份有限公司 | Electromagnetic shielding film and circuit board |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6281685B1 (en) * | 1995-08-29 | 2001-08-28 | The United States Of America As Represented By The Secretary Of The Army | Cable shield fault locator |
| CN223037970U (en) * | 2024-09-19 | 2025-06-27 | 成都派瑞奥传感技术有限公司 | An IEPE circuit |
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