CN112419850B - Detection signal simulation teaching experiment device - Google Patents
Detection signal simulation teaching experiment device Download PDFInfo
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- CN112419850B CN112419850B CN202011465179.XA CN202011465179A CN112419850B CN 112419850 B CN112419850 B CN 112419850B CN 202011465179 A CN202011465179 A CN 202011465179A CN 112419850 B CN112419850 B CN 112419850B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/187—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for measuring instruments
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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Abstract
The invention provides a simulation teaching experimental device for detecting signals, which comprises an experimental bench, a comparator, an alarm, a signal generator, placing seats, instruments and a circuit switching mechanism, wherein the number of the signal generator, the number of the placing seats and the number of the instruments are the same, the circuit switching mechanism comprises a metal blade, a first contact and a second contact which are arranged between the two placing seats, after the instruments are taken away from the placing seats, the circuit switching mechanism can be automatically switched to the signal generator corresponding to the instruments, the comparator can receive the output of the signal generator and the output of the instruments and carry out comparison and judgment, if the two results are different, the comparator can control the alarm to give an alarm to prompt a user that the instruments are not operated correctly, so that the user can operate the instruments again to detect, and the skill of the user in-situ using the instruments is improved.
Description
Technical Field
The invention relates to the technical field of electrical experiment teaching, in particular to a detection signal simulation teaching experimental device.
Background
The use training of present transformer substation's instrument and meter is all limited only in application method's training basically, actual combat training condition is not enough, the training effect is also relatively poor, some electric wire netting training center can be provided with the training room and supply training personnel actual contact instrument and meter to train, nevertheless an indoor training equipment of this kind of training only uses to an instrument, it is higher to lead to the training cost of reality, and training personnel can put back the normal position with the instrument after the training is accomplished well, it needs the arrangement instrument to carry out the playback to lead to the staff in the training room after the training is finished, increase staff's intensity of labour.
Disclosure of Invention
Therefore, the invention provides a detection signal simulation teaching experimental device which can simulate various signals, so that training personnel can operate different instruments on the spot to carry out different training, and the use cost is reduced.
The technical scheme of the invention is realized as follows:
a simulation teaching experiment device for detecting signals comprises an experiment table, a comparator, an alarm, a signal generator, a placing seat, an instrument and a circuit switching mechanism, wherein the signal generator and the comparator are arranged in the experiment table; the circuit switching mechanism is arranged in the experiment table and comprises a metal blade, a first contact and a second contact which are arranged between two placing seats, the bottom of the metal blade is hinged with the inner wall of the experiment table, a resetting mechanism is arranged at the hinged position and is positioned between the first contact and the second contact, the metal blade is connected with a mains supply, and the first contact and the second contact are respectively and electrically connected with different signal generators; a connecting rod is arranged on the bottom surface of the placing seat, a metal part is arranged at one end, far away from the placing seat, of the connecting rod, an electrified coil is arranged in the experiment table, and the connecting rod penetrates through the electrified coil; the outer wall of the placing seat positioned in the experiment table is provided with a connecting end, the connecting end is electrically connected with the output end of the signal generator, and the instrument is detachably connected with the connecting end through a connecting wire; the comparator is respectively electrically connected with the alarm, the signal generator and the instrument.
Preferably, metal blade bottom one side is provided with the pivot, the laboratory bench inner wall is provided with the recess, the pivot is inserted in the recess, canceling release mechanical system is the torsional spring, the torsional spring setting is in the pivot.
Preferably, the inner wall of the experiment table is provided with a weak magnetic strip, and the metal blade is in contact with the weak magnetic strip.
Preferably, a limiting plate is arranged on the side face of the placing seat, and the distance from the limiting plate to the top face inside the experiment table is equal to the distance from the top end of the metal part to the top end of the energized coil.
Preferably, the device further comprises an upper computer, wherein the upper computer is arranged on the upper surface of the experiment table and is electrically connected with the comparator.
Preferably, the device further comprises a non-contact infrared thermometer, a heating wire and a contact temperature sensor, wherein the heating wire and the contact temperature sensor are arranged in the experiment table, the heating wire is connected with a mains supply, a temperature sensing contact of the contact temperature sensor is in contact with the heating wire, the non-contact infrared thermometer is arranged on the experiment table, and the comparator is respectively and electrically connected with the non-contact infrared thermometer and the contact temperature sensor.
Preferably, an opening is formed in the experiment table, a support frame is arranged inside the opening, the heating wire is arranged in the support frame, and an electric push rod is arranged at the bottom of the support frame.
Preferably, a cooling cylinder is further arranged inside the experiment table, the electric push rod and the support frame are arranged in the cooling cylinder, and cooling fans are symmetrically arranged on the outer wall of the cooling cylinder.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a detection signal simulation teaching experiment device, wherein a plurality of different signal generators are arranged in an experiment table, a placing seat is arranged on the experiment table and used for placing different types of instruments, when a trainer takes the instruments off the placing seat, the signal generators corresponding to the instruments can be automatically switched to, a comparator compares the signal generators with the signals detected by the instruments, if the trainer mistakenly operates the instruments, the signal generators are different from the signals detected by the instruments, the comparator can control an alarm to generate an alarm to prompt the trainer to operate the instruments again for carrying out experiments, so that on-site training operation can be provided for the trainer, the instrument operation skill of the trainer is improved, meanwhile, only when the trainer replaces the instruments on the placing seat, another instrument can be used, the instrument arrangement consciousness of the trainer is improved, and the working intensity of workers is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only preferred embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a detection signal simulation teaching experimental device of the present invention;
FIG. 2 is a schematic view of a connection structure of a metal blade and an experiment table of the experimental device for simulation teaching of detection signals of the present invention;
FIG. 3 is a schematic circuit diagram of a simulation teaching experiment apparatus for detecting signals according to the present invention;
in the figure, 1 is a test table, 2 is a comparator, 3 is an alarm, 4 is a signal generator, 5 is a placing seat, 6 is an instrument, 7 is a spring, 8 is a metal blade, 9 is a first contact, 10 is a second contact, 11 is a connecting rod, 12 is a metal part, 13 is an energizing coil, 14 is a connecting end, 15 is a rotating shaft, 16 is a groove, 17 is a torsion spring, 18 is a weak magnetic strip, 19 is a limiting plate, 20 is an upper computer, 21 is a non-contact infrared thermometer, 22 is a heating wire, 23 is a contact temperature sensor, 24 is an opening, 25 is a support, 26 is an electric push rod, 27 is a cooling cylinder, and 28 is a cooling fan.
Detailed Description
For a better understanding of the technical content of the present invention, a specific embodiment is provided below, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the simulation teaching experiment device for detecting signals provided by the invention comprises an experiment table 1, a comparator 2, an alarm 3, a signal generator 4, a placing seat 5, an instrument 6 and a circuit switching mechanism, wherein the signal generator 4 and the comparator 2 are arranged inside the experiment table 1, the placing seat 5 extends into the experiment table 1 from the upper surface of the experiment table 1 and is connected with the bottom surface inside the experiment table 1 through a spring 7, and the instrument 6 is arranged on the upper surface of the placing seat 5; the circuit switching mechanism is arranged in the experiment table 1 and comprises a metal blade 8, a first contact 9 and a second contact 10 which are arranged between two placing seats 5, the bottom of the metal blade 8 is hinged with the inner wall of the experiment table 1, a reset mechanism is arranged at the hinged position and is positioned between the first contact 9 and the second contact 10, the metal blade 8 is connected with a mains supply, and the first contact 9 and the second contact 10 are respectively and electrically connected with different signal generators 4; a connecting rod 11 is arranged on the bottom surface of the placing seat 5, a metal part 12 is arranged at one end, away from the placing seat 5, of the connecting rod 11, an electrified coil 13 is arranged in the experiment table 1, and the connecting rod 11 penetrates through the electrified coil 13; the outer wall of the placing seat 5 positioned in the experiment table 1 is provided with a connecting end 14, the connecting end 14 is electrically connected with the output end of the signal generator 4, and the instrument 6 is detachably connected with the connecting end 14 through a connecting wire; the comparator 2 is electrically connected with the alarm 3, the signal generator 4 and the instrument 6 respectively.
The invention relates to a detection signal simulation teaching experimental device, which is used for providing training of various electric instruments and meters for training personnel, wherein the number of a placing seat 5 and a signal generator 4 is even, the training personnel can select an instrument 6 to be known when training, then the instrument 6 is taken down from the placing seat 5, the device can be automatically switched to the corresponding signal generator 4, the signal generator 4 is electrified, a signal generated by the signal generator 4 can be sent to a comparator 2 as one input of the comparator 2, the training personnel can collect the input of the signal generator 4 after operating the instrument 6 and send the collected signal to the comparator 2 as the other input of the comparator 2, if the two inputs of the comparator 2 are the same, the operation of the instrument 6 by the training personnel is correct, if the two inputs of the comparator 2 are different, the training personnel mistakenly operate the instrument 6, and the comparator 2 controls an alarm 3 to give an alarm to prompt the personnel, so that the training personnel can operate the instrument 6 again, and the training personnel can improve the field operation skill of the training personnel on the instrument 6.
In order to reduce the training cost, the invention integrates a plurality of simulation experiments of different signals, the number of the signal generators 4, the placing seats 5 and the instruments 6 is also even, each instrument 6 corresponds to one signal generator 4, a circuit switching mechanism is arranged between the two placing seats 5, when the instrument 6 on the placing seat 5 is taken up, the circuit switching mechanism can be automatically switched to the signal generator 4 corresponding to the instrument 6, so that the signal generator 4 can be electrified and send the generated signal to the comparator 2, and the comparator 2 compares the input of the signal generator 4 and the input of the instrument 6 to judge whether the training personnel correctly operate the instrument 6.
When a training person takes the instrument 6 off the placing seat 5, under the action of the spring 7, the placing seat 5 can pop up upwards and drive the connecting rod 11 at the bottom of the placing seat to move upwards, so that the metal part 12 at the bottom of the connecting rod 11 rises into the electrified coil 13, under the action of electromagnetic induction, the electrified coil 13 can generate magnetism and attract the metal blade 8 at one side of the electrified coil, the metal blade 8 is in contact with the first contact 9 or the second contact 10, the corresponding signal generator 4 can be communicated, the corresponding signal generator 4 is powered on, the signal generator 4 can send a signal source to the comparator 2, when the placing seat 5 pops up, the connecting end 14 arranged on the side wall of the placing seat can also move to the outside of the experiment table 1, at the moment, the training person can connect the instrument 6 with the connecting end 14 through a connecting wire, after the measuring range and the detection mode of the instrument 6 are adjusted, the instrument 6 can obtain a corresponding detection signal and send the detection signal to the comparator 2, and the comparator 2 can compare whether the two inputs are the same and judge whether an alarm is sent.
And after the training personnel accomplished the training of one of them instrument 6, need place instrument 6 back to place on seat 5, just can carry out the training of next instrument 6, after instrument 6 reseed to place on seat 5, under the action of gravity, place seat 5 and move down for metal part 12 leaves electrical coil 13, after electrical coil 13 loses magnetism, under reset mechanism's effect, metal blade 8 can return to initial position, and leave first contact 9 or second contact 10, thereby can cut off the power supply that corresponds signal generator 4.
The two placing seats 5, the two signal generators 4, the two instruments 6 and the circuit switching mechanism can be used as a group, simulation experiments on different signals can be realized by arranging a plurality of groups, and the signal generators 4 can comprise a partial discharge signal generator, a direct current voltage signal generator, a direct current signal generator, an alternating current voltage signal generator, an alternating current signal generator and the like.
Preferably, 8 bottom one sides of metal blade are provided with pivot 15, 1 inner wall of laboratory bench is provided with recess 16, pivot 15 inserts in the recess 16, canceling release mechanical system is torsional spring 17, torsional spring 17 sets up in pivot 15, 1 inner wall of laboratory bench is provided with weak magnetic stripe 18, metal blade 8 contacts with weak magnetic stripe 18.
When the metal blade 8 is subjected to magnetic force or elastic force of the torsion spring 17, the rotating shaft 15 arranged on one side of the metal blade 8 rotates around the groove 16, the weak magnetic strip 18 arranged on the metal blade 8 can magnetically attract the metal blade 8, so that the metal blade 8 is reset to an original vertical state, and when the metal part 12 moves into the electrified coil 13, the magnetic force generated by the electrified coil 13 is greater than the magnetic force of the weak magnetic strip 18 and the elastic force of the torsion spring 17, so that the metal blade 8 can be attracted to one side to be in contact with the first contact 9 or the second contact 10.
Preferably, a limiting plate 19 is arranged on the side surface of the placing seat 5, and the distance from the limiting plate 19 to the inner top surface of the experiment table 1 is equal to the distance from the top end of the metal part 12 to the top end of the energized coil 13.
The limiting plate 19 can prevent the placing seat 5 from moving upwards excessively, and when the limiting plate 19 is contacted with the top wall of the experiment table 1, the metal part 12 can just penetrate into the electrified coil 13, and the maximum magnetism generated by the electrified coil 13 is ensured.
Preferably, the device further comprises an upper computer 20, wherein the upper computer 20 is arranged on the upper surface of the experiment table 1 and is electrically connected with the comparator 2.
The output of the signal generator 4 and the output of the instrument 6 can be subjected to numerical value display through the upper computer 20, and when the difference occurs between the two, training personnel can judge the problems existing in the operation of the instrument 6 through the numerical value display.
Preferably, the device further comprises a non-contact infrared thermometer 21, a heating wire 22 and a contact temperature sensor 23 which are arranged in the experiment table 1, the heating wire 22 is connected with the mains supply, a temperature sensing contact of the contact temperature sensor 23 is in contact with the heating wire 22, the non-contact infrared thermometer 21 is arranged on the experiment table 1, and the comparator 2 is electrically connected with the non-contact infrared thermometer 21 and the contact temperature sensor 23 respectively.
The invention also provides a simulation experiment of the heating signal, after the heating wire 22 heats, the temperature information of the heating wire 22 is collected through the arranged contact type temperature sensor 23 and is sent to the comparator 2, training personnel can collect the temperature of the heating wire 22 through the non-contact type infrared thermometer 21 and then send the temperature information to the comparator 2, the two temperature information are compared through the comparator 2, and if the temperature information is not matched, the alarm 3 is controlled to give an alarm.
Preferably, an opening 24 is formed in the experiment table 1, a support frame 25 is arranged inside the opening 24, the heating wire 22 is arranged in the support frame 25, and an electric push rod 26 is arranged at the bottom of the support frame 25.
When carrying out the signal simulation teaching that generates heat, drive support frame 25 rebound through electric putter 26, support frame 25 can drive heater 22 and remove to laboratory bench 1 outside from opening 24 to can carry out temperature signal's collection to heater 22.
Preferably, a cooling cylinder 27 is further disposed inside the experiment table 1, the electric push rod 26 and the support frame 25 are disposed in the cooling cylinder 27, and cooling fans 28 are symmetrically disposed on an outer wall of the cooling cylinder 27.
In order to prevent the residual heat of the heating wire 22 from causing high-temperature baking damage to the components inside the experiment table 1, a cooling cylinder 27 is arranged inside the experiment table 1, and after the support frame 25 and the heating wire 22 are moved into the cooling cylinder 27, the heating wire 22 can be cooled by a cooling fan 28 arranged on the outer surface of the cooling cylinder 27.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A simulation teaching experiment device for detecting signals is characterized by comprising an experiment table, a comparator, an alarm, a signal generator, a placing seat, an instrument and a circuit switching mechanism, wherein the signal generator and the comparator are arranged in the experiment table; the circuit switching mechanism is arranged in the experiment table and comprises a metal blade, a first contact and a second contact which are arranged between two placing seats, the bottom of the metal blade is hinged with the inner wall of the experiment table, a resetting mechanism is arranged at the hinged position and is positioned between the first contact and the second contact, the metal blade is connected with a mains supply, and the first contact and the second contact are respectively and electrically connected with different signal generators; the bottom surface of the placing seat is provided with a connecting rod, one end of the connecting rod, which is far away from the placing seat, is provided with a metal part, an electrified coil is arranged in the experiment table, the connecting rod and the metal part penetrate through the electrified coil, and when the instrument is positioned above the placing seat, the metal part is positioned below the electrified coil; the outer wall of the placing seat positioned in the experiment table is provided with a connecting end, the connecting end is electrically connected with the output end of the signal generator, and the instrument is detachably connected with the connecting end through a connecting wire; the comparator is electrically connected with the alarm, the signal generator and the instrument respectively; the instrument and the signal generator respectively send signals to the comparator, and the comparator controls the alarm to give an alarm.
2. The simulation teaching experiment device for the detection signals as claimed in claim 1, wherein a rotating shaft is arranged on one side of the bottom of the metal blade, a groove is formed in the inner wall of the experiment table, the rotating shaft is inserted into the groove, the reset mechanism is a torsion spring, and the torsion spring is arranged on the rotating shaft.
3. The simulation teaching experiment device for the detection signals as claimed in claim 1, wherein the inner wall of the experiment table is provided with a weak magnetic strip, and the metal blade is in contact with the weak magnetic strip.
4. The simulation teaching experiment device for the detection signals as claimed in claim 1, wherein a limiting plate is arranged on the side surface of the placing seat, and the distance from the limiting plate to the top surface inside the experiment table is equal to the distance from the top end of the metal part to the top end of the energized coil.
5. The simulation teaching experiment device for the detection signals as claimed in claim 1, further comprising an upper computer, wherein the upper computer is arranged on the upper surface of the experiment table and is electrically connected with the comparator.
6. The simulation teaching experiment device for the detection signals according to claim 1, further comprising a non-contact infrared thermometer, a heating wire and a contact temperature sensor arranged in the experiment table, wherein the heating wire is connected with the mains supply, a temperature sensing contact of the contact temperature sensor is in contact with the heating wire, the non-contact infrared thermometer is arranged on the experiment table, and the comparator is electrically connected with the non-contact infrared thermometer and the contact temperature sensor respectively.
7. The detection signal simulation teaching experiment device as claimed in claim 6, wherein an opening is arranged on the experiment table, a support frame is arranged inside the opening, the heating wire is arranged in the support frame, and an electric push rod is arranged at the bottom of the support frame.
8. The simulation teaching experiment device for the detection signals as claimed in claim 7, wherein a cooling cylinder is further arranged inside the experiment table, the electric push rod and the supporting frame are arranged in the cooling cylinder, and cooling fans are symmetrically arranged on the outer wall of the cooling cylinder.
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| CN202011465179.XA CN112419850B (en) | 2020-12-14 | 2020-12-14 | Detection signal simulation teaching experiment device |
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| CN202011465179.XA CN112419850B (en) | 2020-12-14 | 2020-12-14 | Detection signal simulation teaching experiment device |
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| CN114172027B (en) * | 2021-11-25 | 2023-12-29 | 海南电网有限责任公司三亚供电局 | Insulating oil collecting device of oil immersed transformer |
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