CN209027936U - A kind of calutron inhibiting the rebound of multiple-pulse Hopkinson bar - Google Patents
A kind of calutron inhibiting the rebound of multiple-pulse Hopkinson bar Download PDFInfo
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- CN209027936U CN209027936U CN201821593181.3U CN201821593181U CN209027936U CN 209027936 U CN209027936 U CN 209027936U CN 201821593181 U CN201821593181 U CN 201821593181U CN 209027936 U CN209027936 U CN 209027936U
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Abstract
The utility model relates to electromagnetic fields and sensor field, more particularly to a kind of calutron for inhibiting the rebound of multiple-pulse Hopkinson bar, the incident bar and transmission bar bounce problem encountered after the load of Hopkinson bar multiple-pulse is efficiently solved, the accuracy of measurement is improved.Calutron includes first coil, the second coil, photoelectric sensor and circuit system, and circuit system is connect with first coil, the second coil, photoelectric sensor respectively；The transmission bar of Hopkinson bar is fixed on cushioning fender；First coil is set on one end of the transmission bar of Hopkinson bar, and the other end of the transmission bar is connected by the incident bar of test specimen and Hopkinson bar；Second coil is set on one end of the incident bar, and the other end of incident bar is arranged in photoelectric sensor；The transmission bar and incident bar of Hopkinson bar are pierced by first coil, the second coil respectively.
Description
Technical field
The utility model relates to electromagnetic field and sensor fields more particularly to a kind of inhibition multiple-pulse Hopkinson bar to rebound
Calutron.
Background technique
Nowadays, for two in the research of material dynamic characteristics under high strain-rate, especially automobile impacting, earthquake
Secondary Shocks, bomb subsequent explosion when caused impact loading at the hot spot in material property research topic,
These shock loadings can be generated by shock bullet, and one of device is exactly the multiple-pulse Hopkinson bar dress continuously loaded
It sets.Multiple-pulse Hopkinson lever apparatus is during load pulses, it may appear that postimpulse rebound phenomena is unfavorable for arteries and veins next time
The continuous load of punching, therefore will affect the input of sample both ends and output adaptability to changes waveform acquisition, cause measurement inaccurate.
The development of electromagnetic technique is increasingly mature at present, and the application based on electromagnetic technique is also more and more extensive, is mainly used in
The fields such as military affairs, transport, space flight.The utility model utilizes electromagnetic technique, provides one kind and efficiently solves multiple-pulse Hopkinson
The technical solution of incident bar and transmission bar bounce problem that bar is encountered.
Summary of the invention
For the appearance of the incident bar and transmission bar rebound phenomena that inhibit Hopkinson bar multiple-pulse continuously to load, this is practical
It is novel that a kind of calutron of inhibition multiple-pulse Hopkinson bar rebound is provided, inhibit to rebound by generating corresponding electromagnetic force
Power, prevents that incident bar from separating with test specimen or transmission bar is separated with cushioning fender, the load of bullet is influenced, to ensure measurement data
Accuracy.
The utility model calutron adopts the following technical scheme that realize: a kind of inhibition multiple-pulse Hopkinson bar rebound
Calutron, which is characterized in that including first coil, the second coil, photoelectric sensor and circuit system, circuit system difference
It is connect with first coil, the second coil, photoelectric sensor；
The transmission bar of Hopkinson bar is fixed on cushioning fender；First coil is set on the transmission bar of Hopkinson bar
The other end of one end, the transmission bar is connected by the incident bar of test specimen and Hopkinson bar；Second coil enters described in being set on
One end of bar is penetrated, the other end of incident bar is arranged in photoelectric sensor；The transmission bar and incident bar of Hopkinson bar are pierced by respectively
First coil, the second coil；
When the incident bar described in the projectile impact, by photoelectric sensor, photosignal is triggered, circuit system is to the second coil
Discharge current is generated, discharge current flows through the second coil and generates magnetic field, and incident bar is magnetized, and the incident bar after magnetization is by second
The effect of coil magnetic moment generates corresponding electromagnetic force to inhibit the bounce of incident bar, prevents incident bar from separating with test specimen；
The photosignal triggers the circuit system and generates interruption, and trigger circuit system generates electric discharge electricity to first coil
Stream, discharge current flow through first coil and generate magnetic field, and transmission bar is magnetized, and the transmission bar after magnetization is by first coil magnetic moment
Effect, generates corresponding electromagnetic force come the bounce for inhibiting cushioning fender to transmission bar, prevents transmission bar from separating with cushioning fender.
Preferably, the circuit system includes that photoelectricity triggering discharge circuit and single-chip microcontroller trigger discharge circuit；
It includes triode Q3, thyristor Q1 and capacitor C1 that photoelectricity, which triggers discharge circuit,；Photoelectric sensor through triode Q3 with
Thyristor Q1 connection, thyristor Q1, capacitor C1 are connect with the second coil (2)；
It includes single-chip microcontroller, photoelectrical coupler, capacitor C2 and thyristor Q2, the outside of single-chip microcontroller that single-chip microcontroller, which triggers discharge circuit,
Interruptive port is connect with the base stage of triode Q3, and the output port of single-chip microcontroller and the diode end of photoelectrical coupler connect, photoelectricity
The end C-E of coupler and the gate pole of thyristor connect, and thyristor Q2, capacitor C2 are connect with first coil.
Compared with prior art, the utility model achieves following the utility model has the advantages that solving Hopkinson bar multiple-pulse company
It is continuous to load brought bounce problem, good effect is brought to implement DATA REASONING and integration；And the structure of device is simple,
It is easy to use.
Detailed description of the invention
The utility model will be further described below with reference to the accompanying drawings:
Fig. 1 is the overall structure diagram for the calutron that the utility model inhibits the rebound of multiple-pulse Hopkinson bar；
Fig. 2 is the circuit diagram of circuit system；
Fig. 3 is the flow chart of the utility model control method；
Wherein: 1- first coil, the second coil of 2-, 3- photoelectric sensor, 4- firm banking, 5- circuit system, 6- monolithic
Machine, 7- cushioning fender, 8- transmission bar, 9- test specimen, 10- incident bar, the first bullet of 11-, the second bullet of 12-.
Specific embodiment
The utility model, but the embodiment party of the utility model are described in detail below in conjunction with attached drawing and specific embodiment
Formula is not limited to this.
As shown in Figure 1, the utility model inhibits the calutron of multiple-pulse Hopkinson bar rebound, comprising: first coil
1, the second coil 2, photoelectric sensor 3, firm banking 4 and circuit system 5, firm banking fixes coil, circuit system difference
It is connect with first coil, the second coil, photoelectric sensor, the processor of circuit system is realized using single-chip microcontroller 6.
The transmission bar 10 of Hopkinson bar is fixed on cushioning fender 7.First coil 1 is set on the transmission of Hopkinson bar
The other end of one end of bar 8, transmission bar 8 is connect by test specimen 9 with the incident bar 10 of Hopkinson bar；Second coil 2 is set on
One end of the incident bar 10 of Hopkinson bar, i.e. the second coil 2 are located at close to one end of test specimen 9, and photoelectric sensor setting is entering
Penetrate the other end of bar 10.The transmission bar and incident bar of Hopkinson bar are pierced by first coil, the second coil respectively, and are pierced by length
Preferably within the scope of 1-3cm.
As shown in Fig. 2, circuit system includes: power supply circuit, photoelectricity triggering discharge circuit and single-chip microcontroller triggering discharge circuit.
Power supply circuit includes battery, boost module, voltage reduction module, light emitting diode, master switch, charge switch and capacitor.Power supply circuit
Power supply is provided to photoelectricity triggering discharge circuit, single-chip microcontroller triggering discharge circuit.
It includes triode Q3, capacitor C1, resistance and thyristor Q1 that photoelectricity, which triggers discharge circuit,；Photoelectric sensor 3 uses slot
Type optocoupler, and connect through triode Q3 with thyristor Q1, resistance is equipped between slot optical coupling and the collector of triode Q3；Three poles
Biasing resistor is equipped between the collector and base stage of pipe Q3, thyristor Q1, capacitor C1 are connect with the second coil 2 (i.e. L1).This reality
Slot optical coupling in example is applied to realize using photoelectric door (H2210).
The working principle of photoelectricity triggering discharge circuit is mainly: when there is object to block photoelectric door (H2210), photoelectric door touching
The base stage for sending out triode Q3 (9014) in discharge circuit jumps (jumping to 4.95V by 0V) from low level toward high level, that is, generates
Photosignal, thus allow triode Q3 collector and emitter between (end C-E) conducting, then trigger thyristor Q1
The gate pole of (70TPS12) allows the cathode of thyristor Q1 and anode to be connected, so that capacitor C1 be made to discharge.
It includes single-chip microcontroller 6, photoelectrical coupler, capacitor C2, resistance and thyristor Q2, monolithic that single-chip microcontroller, which triggers discharge circuit,
The external interrupt port INT0 of machine is connect with the base stage of triode Q3, and the output port PD0 of single-chip microcontroller is through resistance R4 and photoelectricity coupling
The diode end of clutch connects, and the end C-E of photoelectrical coupler is connect through resistance R5 with the gate pole of thyristor Q2, thyristor Q2, electricity
Hold C2 to connect with first coil 1 (i.e. L2).
The working principle of single-chip microcontroller triggering discharge circuit is mainly: when there is object to block photoelectric door (H2210), photoelectric door
The base stage for triggering triode Q3 (9014) in discharge circuit jumps (jumping to 4.95V by 0V) from low level toward high level, generates
Photosignal；The photosignal is input to the external interrupt INT0 of single-chip microcontroller, the i.e. port PD2 of single-chip microcontroller, and is arranged to rise
The mode on edge triggers interruption, and single-chip microcontroller enters interruption service function, customized delay function is called, within 100 microseconds
After delay, the port PD0 of single-chip microcontroller exports high level (5V), at this time the diode end conducting of photoelectrical coupler (PC817), triggering
The end C-E of photoelectrical coupler is connected, and then triggers the gate pole of thyristor Q2 (70TPS12), the cathode of thyristor and anode is allowed to lead
Lead to that capacitor C2 is made to discharge, the port PD0 of subsequent single-chip microcontroller becomes low level (0V) from high level (5V).
The working principle of the utility model is as follows: when the first load for the first time of bullet 11, by photoelectric sensor 3, triggering electricity
Road system 5 controls the capacitor C1 electric discharge connecting with the second coil 2, and electric current flows through the second coil 2 and generates magnetic field, Hopkinson bar
Incident bar 10 is magnetized, effect of the incident bar after magnetization by 2 magnetic moment of the second coil, generates an electromagnetic force to the right to press down
Hopkinson bar measuring device processed prevents incident bar from separating with test specimen to the bounce of incident bar, and then influences the second bullet 12
Load.
Meanwhile first bullet 11 hit moment, photosignal is also communicated to single-chip microcontroller, triggers the interruption clothes inside single-chip microcontroller
Business function, and software delay (calling customized delay function) is used, by the delay within 100 microseconds, trigger circuit system
The capacitor C2 electric discharge that system control is connect with first coil 1, electric current flow through first coil 1 and generate magnetic field, the transmission of Hopkinson bar
Bar 8 is magnetized, effect of the transmission bar after magnetization by 1 magnetic moment of first coil, generates an electromagnetic force to the right to inhibit slow
Baffle is rushed to the bounce of transmission bar, prevents transmission bar from separating with cushioning fender, and then influences the load of the second bullet 12.
Such as Fig. 3, the control method of the utility model calutron includes the following steps:
S1, certain voltage is charged to for circuit system；
S2, the Hopkinson bar emitter emission bullet positioned at Hopkinson bar measuring device right end, to incident bar into
Row repeat impact；
When S3, projectile impact incident bar, incident bar will appear rebound phenomena；When projectile impact incident bar moment, while
Photoelectric door is blocked, to trigger photosignal；
It after S4, circuit system receive photosignal, controls the capacitor C1 connecting with the second coil 2 and starts to discharge, simultaneously will
Photosignal is transmitted to single-chip microcontroller, and electric current flows through the second coil 2, generates magnetic field, and incident bar generates an electromagnetic force to the left, offsets
Act on the bounce of incident bar to the right；
S5, under projectile impact, transmission bar also has a rebound phenomenon；By the other delay of single-chip microcontroller Microsecond grade, with first
The capacitor C2 electric discharge that coil 1 connects, electric current flow through first coil 1, generate magnetic field, change transmission bar magnetic resistance, generate to transmission bar
One electromagnetic force to the left, bounce of the negative function in transmission bar to the right.
So far, the rebound phenomena of incident bar and transmission bar is solved, the examination being clipped between incident bar and transmission bar
Part will not be flicked, and be conducive to bullet next time and hit.
In the present embodiment, hit bullet 11,12, test specimen, incident bar, transmission bar, cushioning fender and bullet emitter,
There is the technology of related maturation, does not remake careful introduction herein.
It should be noted that the battery of power supply circuit can be, but not limited to as 12V lithium battery, boost module can with but it is unlimited
In for ZVS boost module, diode be can be, but not limited to as FR207 fast recovery diode；Photoelectricity triggers discharge circuit and monolithic
The thyristor of machine triggering discharge circuit can be, but not limited to as 70TPS12 thyristor.For the capacitor of charging and for electric discharge
Capacitor is the same capacitor.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, person of an ordinary skill in the technical field
It is understood that specific implementation of the utility model can still be modified or is equal to some technical characteristics
Replacement, without departing from the spirit of technical solutions of the utility model, should all cover the range claimed in the utility model
In.
Claims (6)
1. a kind of calutron for inhibiting the rebound of multiple-pulse Hopkinson bar, which is characterized in that including first coil, the second line
Circle, photoelectric sensor and circuit system, circuit system are connect with first coil, the second coil, photoelectric sensor respectively；
The transmission bar of Hopkinson bar is fixed on cushioning fender；First coil is set on the one of the transmission bar of Hopkinson bar
The other end at end, the transmission bar is connected by the incident bar of test specimen and Hopkinson bar；Second coil is set on the incidence
The other end of incident bar is arranged in one end of bar, photoelectric sensor；The transmission bar and incident bar of Hopkinson bar are pierced by respectively
One coil, the second coil；
When the incident bar described in the projectile impact, by photoelectric sensor, photosignal is triggered, circuit system generates the second coil
Discharge current, discharge current flow through the second coil and generate magnetic field, and incident bar is magnetized, and the incident bar after magnetization is by the second coil
The effect of magnetic moment generates corresponding electromagnetic force to inhibit the bounce of incident bar, prevents incident bar from separating with test specimen；
The photosignal triggers the circuit system and generates interruption, and trigger circuit system generates discharge current to first coil,
Discharge current flows through first coil and generates magnetic field, and transmission bar is magnetized, work of the transmission bar after magnetization by first coil magnetic moment
With generating corresponding electromagnetic force come the bounce for inhibiting cushioning fender to transmission bar, prevent transmission bar from separating with cushioning fender.
2. the calutron according to claim 1 for inhibiting the rebound of multiple-pulse Hopkinson bar, which is characterized in that the electricity
Road system includes that photoelectricity triggering discharge circuit and single-chip microcontroller trigger discharge circuit；
It includes triode Q3, thyristor Q1 and capacitor C1 that photoelectricity, which triggers discharge circuit,；Photoelectric sensor is through triode Q3 and brilliant lock
Pipe Q1 connection, thyristor Q1, capacitor C1 are connect with the second coil (2)；
It includes single-chip microcontroller, photoelectrical coupler, capacitor C2 and thyristor Q2, the external interrupt of single-chip microcontroller that single-chip microcontroller, which triggers discharge circuit,
Port is connect with the base stage of triode Q3, and the output port of single-chip microcontroller and the diode end of photoelectrical coupler connect, photoelectric coupling
The end C-E of device and the gate pole of thyristor connect, and thyristor Q2, capacitor C2 are connect with first coil.
3. the calutron according to claim 2 for inhibiting the rebound of multiple-pulse Hopkinson bar, which is characterized in that the electricity
Road system further includes the power supply circuit powered to photoelectricity triggering discharge circuit and single-chip microcontroller triggering discharge circuit.
4. the calutron according to claim 1 for inhibiting the rebound of multiple-pulse Hopkinson bar, which is characterized in that the light
Electric transducer is realized using photoelectric door.
5. the calutron according to claim 1 for inhibiting the rebound of multiple-pulse Hopkinson bar, which is characterized in that the electricity
Magnetic device further includes for the firm banking that first coil, the second coil is fixed.
6. the calutron according to claim 1 for inhibiting the rebound of multiple-pulse Hopkinson bar, which is characterized in that incident bar
It is pierced by with transmission bar first coil respectively, the second coil is pierced by length within the scope of 1-3cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593181.3U CN209027936U (en) | 2018-09-28 | 2018-09-28 | A kind of calutron inhibiting the rebound of multiple-pulse Hopkinson bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821593181.3U CN209027936U (en) | 2018-09-28 | 2018-09-28 | A kind of calutron inhibiting the rebound of multiple-pulse Hopkinson bar |
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| Publication Number | Publication Date |
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| CN209027936U true CN209027936U (en) | 2019-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965115A (en) * | 2022-04-18 | 2022-08-30 | 北京理工大学 | Continuous and repeated high-impact loading test and test system and method |
| CN118168962A (en) * | 2024-05-14 | 2024-06-11 | 四川大学 | Single-pulse experimental device and experimental method based on Hopkinson pressure bar |
-
2018
- 2018-09-28 CN CN201821593181.3U patent/CN209027936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114965115A (en) * | 2022-04-18 | 2022-08-30 | 北京理工大学 | Continuous and repeated high-impact loading test and test system and method |
| CN118168962A (en) * | 2024-05-14 | 2024-06-11 | 四川大学 | Single-pulse experimental device and experimental method based on Hopkinson pressure bar |
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