CN109030852A - A kind of piezoelectric type nuclear electromagnetic pulse isolating device - Google Patents
A kind of piezoelectric type nuclear electromagnetic pulse isolating device Download PDFInfo
- Publication number
- CN109030852A CN109030852A CN201810800802.9A CN201810800802A CN109030852A CN 109030852 A CN109030852 A CN 109030852A CN 201810800802 A CN201810800802 A CN 201810800802A CN 109030852 A CN109030852 A CN 109030852A
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- Prior art keywords
- electromagnetic pulse
- high quick
- nuclear electromagnetic
- type nuclear
- piezoelectric type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses a kind of piezoelectric type nuclear electromagnetic pulse isolating devices, including power supply, high quick piezoelectric ceramics, gear ring, iron core, spiral probe, permanent magnet, high quick foil gauge, divider resistance, ground wire and signal transmssion line, the center of spiral probe is arranged in iron core, the lower end of iron core connects permanent magnet, the periphery of gear ring and the iron core upper end at spiral probe center are staggered relatively, there is gap between gear ring and spiral probe, high quick piezoelectric ceramics upper and lower ends are connect with two exits of spiral probe respectively, high quick foil gauge is provided on the side of high quick piezoelectric ceramics, high quick foil gauge one end is connected with power supply, the other end is divided into two-way: being connected all the way with signal transmssion line, it is connected all the way through divider resistance with ground wire.The isolation of the transmission and nuclear electromagnetic pulse high-voltage signal of magnetoelectric sensor transducing signal may be implemented in piezoelectric type nuclear electromagnetic pulse isolating device of the invention, has separated interference of the nuclear electromagnetic pulse to control circuit.
Description
Technical field
The present invention relates to sensor core Spark gap fields, and in particular to a kind of piezoelectric type nuclear electromagnetic pulse isolation dress
It sets.
Background technique
With the continuous development of information technology, attention of the measurement and application of revolving speed by more and more fields, especially
Aviation and Military Application field.Since magnetoelectric sensor has biggish perception, in nuclear electromagnetic pulse, thunder and lightning or Gao Gong
Biggish pulse voltage can be generated under the action of rate microwave weapon, pulse voltage can be to aviation controller, military vehicle controller
Deng the biggish interference of generation and damage.Simultaneously magnetoelectric sensor since there are biggish perception, anti-electromagnetic interference capability is weaker,
With the increase of transmission range, the coupling ability of sensor increases, these factors can make sensor by the coupling with electromagnetic pulse,
It is passed to biggish voltage pulse into controller, controller is damaged.
Summary of the invention
Goal of the invention: the purpose of the present invention is realize the strong electromagnetic under nuclear electromagnetic pulse effect to speed measuring system
The isolation for coupling the pulse voltage and pulse current that generate prevents from generating damage to controller, in traditional magnetic tachometer acquisition system
On the basis of by increase piezoelectric ceramics isolating device so that the output signal of the sensor under nuclear electromagnetic pulse will not be to control
Device circuit board generates damage.
Technical solution:
A kind of piezoelectric type nuclear electromagnetic pulse isolating device, including power supply, high quick piezoelectric ceramics, gear ring, iron core, helix are visited
The center of spiral probe, iron is arranged in head, permanent magnet, high quick foil gauge, divider resistance, ground wire and signal transmssion line, iron core
The lower end of core connects permanent magnet, and the periphery of gear ring and the iron core upper end at spiral probe center are staggered relatively, gear ring and helix
There is gap between probe, high quick piezoelectric ceramics upper and lower ends are connect with two exits of spiral probe respectively, in high quick pressure
High quick foil gauge is provided on the side of electroceramics, high quick foil gauge one end is connected with power supply, and the other end is divided into two-way: all the way with
Signal transmssion line is connected, and is connected all the way through divider resistance with ground wire.
Further, high quick piezoelectric ceramics is rectangular sheet structure.
Further, interstice coverage is 0.9mm~1.1mm between gear ring and spiral probe, guarantees to believe when working normally
Number amplitude size.
Further, the electric power output voltage is 5V.
A kind of piezoelectric type nuclear electromagnetic pulse integrates isolating device, including N number of piezoelectric type nuclear electromagnetic pulse isolating device, N are
Natural number greater than 1.
Further, the value range of N is 5~8.
The utility model has the advantages that
1, the transmission of magnetoelectric sensor transducing signal and the isolation of nuclear electromagnetic pulse high-voltage signal are realized, is made pottery using piezoelectricity
The dependent variable and voltage value of porcelain are higher in the linear characteristic of low-pressure area and the nonlinear characteristic of high voltage region and piezoelectric ceramics
Pressure voltage, when nuclear electromagnetic pulse occurs, the magnetic field of transition can produce larger voltage pulse in spiral probe, when this arteries and veins
When rushing voltage signal and act on piezoelectric ceramics on piece, since piezoelectric ceramics is to the non-linear of high voltage, piezoelectric ceramics it is micro-
Variable is not just changing after reaching peak value, and the deflection that this allows for being attached to the quick foil gauge generation of the height above it is limited, from
And make the test signal voltage in bleeder circuit not too big, the influence generated to rear connection control circuit is reduced, core has been separated
Interference of the electromagnetic pulse to control circuit, in addition high voltage pulse, which acts on piezoelectric ceramics on piece, so that piezoelectric ceramics is hit
It wears, to guarantee the work safety of controller.
2, the protection for realizing the nuclear electromagnetic pulse of revolving speed acquisition system carries out the signal on spiral probe with controller
Isolation guarantees that sensor output signal will not cause to damage to controller.
3, change output signal by changing to high quick piezoelectric ceramics shape size.
4, the form for being made into integration module is placed on the terminal of controller, realizes and couples arteries and veins to sensor coupled pulse and route
The common isolation of punching can carry out the integrated while small in size, light-weight of multiple signals, be more applicable for answering for aviation field
With.
5, magnetoelectric sensor may be implemented in nuclear electromagnetic arteries and veins in piezoelectric type nuclear electromagnetic pulse piezoelectricity isolating device of the invention
The accurate acquisition transmission to transducing signal is swept away, it is of simple structure and low cost, have very to rear connected control system information input
Significance.
Detailed description of the invention
Fig. 1 is a kind of piezoelectric type nuclear electromagnetic pulse isolating device structure and installation site figure；
Fig. 2 is a kind of piezoelectric type nuclear electromagnetic pulse isolating device integrated morphology figure.
Specific embodiment
Further explanation is done to the present invention with reference to the accompanying drawing.
As shown in Figure 1, a kind of piezoelectric type nuclear electromagnetic pulse isolating device, including 5V power supply 1, high quick piezoelectric ceramics 2, gear ring
3, iron core 4, spiral probe 5, permanent magnet 6, high quick foil gauge 7, divider resistance 8, ground wire 9 and signal transmssion line 10, iron core 4 are set
It sets at the center of spiral probe 5, the lower end of iron core 4 connects permanent magnet 6, the periphery of gear ring 3 and the iron at 5 center of spiral probe
Core upper end is staggered relatively, has gap between gear ring 3 and spiral probe 5, interstice coverage is between gear ring 3 and spiral probe 5
0.9mm~1.1mm, the amplitude size of signal when guaranteeing to work normally, high quick piezoelectric ceramics 2 are rectangular sheet structure, high quick pressure
2 upper and lower ends of electroceramics are connect with two exits of spiral probe 5 respectively, are arranged on the side of high quick piezoelectric ceramics 2
Have high quick foil gauge 7, high quick 7 one end of foil gauge is connected with power supply 1, and the other end is divided into two-way: all the way with 10 phase of signal transmssion line
Even, it is connected all the way through divider resistance 8 with ground wire 9.
As the magnetic flux in the rotation spiral probe of fluted disc changes,In spiral probe
A voltage signal E is generated,Wherein, N is spiral probe the number of turns, and k is with gear and forever
The related revolving speed coefficient of magnet strength, n are fluted disc revolving speeds, are detected by the speed probe in installation equipment.Voltage signal E is logical
It crosses cable and acts on piezoelectric ceramics on piece, due to the effect of the upper and lower ends voltage of high quick piezoelectric ceramic piece, high quick piezoelectric ceramics
Light deformation Δ δ=k can occur1E=k1KNn, k1For the voltage coefficient of strain of high quick piezoelectric ceramics, and then can make to be attached to piezoelectricity
Resistance value R=ρ l=ρ Δ δ=ρ k of foil gauge on potsherd1KNn changes, and generates a voltage letter in divider resistance
The voltage signal is transmitted supreme quick piezoelectric ceramics by signal wire by number Δ U, under the action of line voltage signal, high quick piezoelectricity
Microstrain occurs for ceramics, and the resistance value of the highly sensitive foil gauge on microstrain Shi Gaomin piezoelectric ceramics changes, then passes through
The divider resistance of lower end changes the voltage value of signal wire, to realize the detection to sensor signal.
When nuclear electromagnetic pulse impacts sensor, the magnetic field of high speed transient can generate in sensor spiral probe
Larger voltage pulse, since piezoelectric ceramics is to the non-linear of voltage, the amount of being slightly variable of piezoelectric ceramics just no longer changes after reaching peak value,
High voltage pulse, which acts on piezoelectric ceramics on piece, to puncture piezoelectric ceramics, therefore piezoelectric ceramics has relatively high resist
Breakdown voltage.When generating larger voltage pulse in sensor spiral probe, effectively voltage pulse can be truncated herein,
A corresponding voltage signal is generated in bleeder circuit simultaneously.
A kind of piezoelectric type nuclear electromagnetic pulse integrates isolating device, including N number of piezoelectric type nuclear electromagnetic pulse isolating device, N are
Natural number greater than 1, the value range of N are 5~8.
Fig. 2 be a kind of piezoelectric type nuclear electromagnetic pulse integrate isolating device structure chart, including N number of piezoelectric type nuclear electromagnetic pulse every
From device, N is the natural number greater than 1, and the value range of N is 5~8.When needing mutual security with multiple sensor signal
When, piezoelectric type nuclear electromagnetic pulse isolating device can be integrated, multiple piezoelectric type nuclear electromagnetic pulse isolating devices are same
When use, there is preferable integration, per can realize protection to a sensor signal, small volume all the way.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of piezoelectric type nuclear electromagnetic pulse isolating device, it is characterised in that: including power supply (1), high quick piezoelectric ceramics (2), tooth
Enclose (3), iron core (4), spiral probe (5), permanent magnet (6), high quick foil gauge (7), divider resistance (8), ground wire (9) and signal
Transmission line (10), iron core (4) setting connect permanent magnet (6) in the center of spiral probe (5), the lower end of iron core (4), gear ring
(3) the iron core upper end of periphery and spiral probe (5) center is staggered relatively, between having between gear ring (3) and spiral probe (5)
Gap, high quick piezoelectric ceramics (2) upper and lower ends are connect with two exits of spiral probe (5) respectively, in high quick piezoelectric ceramics
(2) high quick foil gauge (7) is provided on side, high quick foil gauge (7) one end is connected with power supply (1), and the other end is divided into two-way:
It is connected all the way with signal transmssion line (10), is connected all the way through divider resistance (8) with ground wire (9).
2. a kind of piezoelectric type nuclear electromagnetic pulse isolating device according to claim 1, which is characterized in that high quick piezoelectric ceramics
It (2) is rectangular sheet structure.
3. a kind of piezoelectric type nuclear electromagnetic pulse isolating device according to claim 1, which is characterized in that gear ring (3) and spiral shell
Interstice coverage is 0.9mm~1.1mm between spin line probe (5), the amplitude size of signal when guaranteeing to work normally.
4. a kind of piezoelectric type nuclear electromagnetic pulse isolating device according to claim 1, which is characterized in that the power supply (1)
Output voltage is 5V.
5. a kind of piezoelectric type nuclear electromagnetic pulse integrates isolating device, which is characterized in that be isolated including N number of piezoelectric type nuclear electromagnetic pulse
Device, N are the natural number greater than 1.
6. a kind of piezoelectric type nuclear electromagnetic pulse according to claim 5 integrates isolating device, which is characterized in that the value of N
Range is 5~8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800802.9A CN109030852B (en) | 2018-07-20 | 2018-07-20 | Piezoelectric nuclear electromagnetic pulse isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810800802.9A CN109030852B (en) | 2018-07-20 | 2018-07-20 | Piezoelectric nuclear electromagnetic pulse isolation device |
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| Publication Number | Publication Date |
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| CN109030852A true CN109030852A (en) | 2018-12-18 |
| CN109030852B CN109030852B (en) | 2020-02-21 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04299265A (en) * | 1991-03-28 | 1992-10-22 | Mitsubishi Materials Corp | Piezoelectric rotation sensor |
| CN101640964A (en) * | 2009-09-02 | 2010-02-03 | 广州金升阳科技有限公司 | Electronic ballast applying piezoelectric ceramic transformer |
| CN102130291A (en) * | 2010-12-27 | 2011-07-20 | 广州金升阳科技有限公司 | Piezoelectric ceramic wafer type isolating signal transformer and manufacturing method thereof |
| CN104793008A (en) * | 2015-03-20 | 2015-07-22 | 哈尔滨汽轮机厂有限责任公司 | Revolution speed transducer for turbine |
| CN205879348U (en) * | 2016-07-26 | 2017-01-11 | 江苏联能电子技术有限公司 | Anti -jamming piezoelectric sensor structure |
-
2018
- 2018-07-20 CN CN201810800802.9A patent/CN109030852B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04299265A (en) * | 1991-03-28 | 1992-10-22 | Mitsubishi Materials Corp | Piezoelectric rotation sensor |
| CN101640964A (en) * | 2009-09-02 | 2010-02-03 | 广州金升阳科技有限公司 | Electronic ballast applying piezoelectric ceramic transformer |
| CN102130291A (en) * | 2010-12-27 | 2011-07-20 | 广州金升阳科技有限公司 | Piezoelectric ceramic wafer type isolating signal transformer and manufacturing method thereof |
| CN104793008A (en) * | 2015-03-20 | 2015-07-22 | 哈尔滨汽轮机厂有限责任公司 | Revolution speed transducer for turbine |
| CN205879348U (en) * | 2016-07-26 | 2017-01-11 | 江苏联能电子技术有限公司 | Anti -jamming piezoelectric sensor structure |
Non-Patent Citations (1)
| Title |
|---|
| 柴荔英 等: "压电陶瓷耦合固体继电器的研制及其电学性能", 《压电与声光》 * |
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