CN215417216U - Non-radioactive ray simulation device and ray monitoring simulation teaching instrument - Google Patents
Non-radioactive ray simulation device and ray monitoring simulation teaching instrument Download PDFInfo
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- CN215417216U CN215417216U CN202120075248.XU CN202120075248U CN215417216U CN 215417216 U CN215417216 U CN 215417216U CN 202120075248 U CN202120075248 U CN 202120075248U CN 215417216 U CN215417216 U CN 215417216U
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Abstract
The utility model relates to a non-radioactive ray simulation device and a ray monitoring simulation teaching instrument, which comprise: a near field transmitter and a field strength receiving processor; the near-field transmitter is used for carrying out non-radioactive ray simulation and outputting an electromagnetic signal; the field intensity receiving processor is used for receiving the non-radioactive rays, carrying out identity identification, waveform processing, digital-to-analog conversion processing and quantization processing on the non-radioactive rays, and outputting signals subjected to quantization processing. The utility model can avoid the problem of environmental radiation rising caused by using a real radioactive source, and teachers and trainees can not be irradiated by radiation in the teaching process, so that the radioactivity measurement teaching can be carried out on any occasions, the simulation effect is vivid, and the training teaching effect is effectively improved.
Description
Technical Field
The utility model relates to the technical field of simulation teaching of radioactive sources of nuclear power plants, in particular to a non-radioactive ray simulation device and a ray monitoring simulation teaching instrument.
Background
In the operation process of a nuclear facility operation unit, radiation safety authorization training needs to be carried out on working personnel participating in operation and maintenance of a power plant, and the training content comprises monitoring of a radiation field and a pollution source. Because the training classroom is arranged in a non-radioactive place, the real radioactive source is used for teaching, the environment is harmed, and the irradiated dose of training personnel and trainees is increased. When the radiation source is not used for teaching, the students lack real feelings on the radiation source and radiation monitoring, and the training effect is poor.
At present, chemical can be used for simulating radioactivity by using existing equipment, however, the monitoring equipment only simulates whether the radioactivity exists, simulation of ray monitoring result strength change under different distances cannot be achieved, the appearance difference of the monitoring equipment and real monitoring equipment is large, and the training effect cannot be effectively improved.
SUMMERY OF THE UTILITY MODEL
The present invention provides a non-radioactive ray simulation apparatus and a ray monitoring simulation teaching instrument, which are used for solving the above-mentioned drawbacks of the prior art.
The technical scheme adopted by the utility model for solving the technical problems is as follows: constructing a non-radioactive ray simulation apparatus comprising: a near field transmitter and a field strength receiving processor;
the near field transmitter is used for carrying out non-radioactive ray simulation and outputting an electromagnetic signal;
the field intensity receiving processor is used for receiving the electromagnetic signals, performing signal identity identification, waveform processing, digital-to-analog conversion processing and quantization processing on the electromagnetic signals, and outputting the signals after quantization processing.
Wherein the near field transmitter comprises: a near-field follower;
the near-field output device is used for generating and outputting the electromagnetic signal.
Wherein the near field transmitter further comprises: the power supply management module is connected with the near field output device;
the power management module is used for providing power signals for the near field transmitter and conducting power management.
Wherein the near field transmitter further comprises: a waveform generator for generating a waveform signal.
Wherein the near field transmitter further comprises: the switch indication module is connected with the power management module;
the switch indication module is used for indicating the switch.
Wherein the near field transmitter further comprises: the identity coding module is connected with the near field output device;
the identity coding module is used for carrying out identity coding on the electromagnetic signal generated by the near-field output device.
Wherein the field strength receiving processor comprises: a magnetic field induction module;
the magnetic field induction module is used for inducing the electromagnetic signal transmitted by the near field transmitter and outputting an induction signal.
Wherein the field strength receiving processor further comprises: the waveform processing module is connected with the magnetic field induction module;
the waveform processing module is used for shaping and amplifying the induction signal and outputting a shaped and amplified waveform signal.
Wherein the field strength receiving processor further comprises: the signal identity authentication module is connected with the waveform processing module;
the signal identity authentication module is used for authenticating the identity of the waveform signal and outputting the signal subjected to the identity authentication.
Wherein the field strength receiving processor further comprises: the digital-to-analog conversion module is connected with the signal identity authentication module;
the digital-to-analog conversion module is used for performing digital-to-analog conversion processing on the signal subjected to the identity authentication and outputting a digital signal.
Wherein the field strength receiving processor further comprises: the quantization output module is connected with the digital-to-analog conversion module;
and the quantization output module is used for performing quantization processing on the digital signal output by the digital-to-analog conversion module and outputting a quantized signal.
The utility model also provides a non-radioactive ray monitoring simulation teaching instrument, which comprises: the non-radioactive ray simulation device and the original instrument component connected with the non-radioactive ray module device.
The implementation of the non-radioactive ray simulation device and the ray monitoring simulation teaching instrument has the following beneficial effects: the method comprises the following steps: a near field transmitter and a field strength receiving processor; the near-field transmitter is used for carrying out non-radioactive ray simulation and outputting an electromagnetic signal; the field intensity receiving processor is used for receiving the non-radioactive rays, carrying out identity identification, waveform processing, digital-to-analog conversion processing and quantization processing on the non-radioactive rays, and outputting the non-radioactive rays after the quantization processing. The utility model can avoid the problem of environmental radiation rising caused by using a real radioactive source, and teachers and trainees can not be irradiated by radiation in the teaching process, so that the radioactivity measurement teaching can be carried out on any occasions, the simulation effect is vivid, and the training teaching effect is effectively improved.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a functional block diagram of a near field transmitter provided by an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a field intensity receiving processor and a connection with an original instrument component according to an embodiment of the present invention;
fig. 3 and 4 are circuit diagrams of a near field transmitter provided by an embodiment of the present invention;
fig. 5 and 6 are circuit diagrams of field strength receiving processors provided by embodiments of the present invention.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
In order to solve the problems that ray radiation exists in the current nuclear power radiation safety training, human body harm is caused to training personnel, or a radioactive source is not adopted, so that the training effect is poor, the utility model provides a non-radioactive ray simulation device.
Specifically, referring to fig. 1, fig. 1 is a non-radioactive ray simulation apparatus provided in the present invention.
As shown in fig. 1, the nonradioactive ray simulation apparatus includes: a near field transmitter 10 and a field strength receiving processor 20.
The near field transmitter 10 is used for non-radioactive ray simulation and outputting electromagnetic signals. The near field transmitter 10 can realize ray simulation, wherein the electromagnetic signal output by the near field transmitter 10 has no radiation, no radioactivity and no harm to human body.
The field intensity receiving processor 20 is configured to receive the electromagnetic signal, perform signal identity identification, waveform processing, digital-to-analog conversion processing, and quantization processing on the electromagnetic signal, and output a signal after quantization processing.
Alternatively, the non-radioactive ray simulation device provided by the utility model can be applied to alpha rays, beta rays and gamma rays.
In some embodiments, the near field transmitter 10 includes: a near-field outputter 105; the near field outputter 105 is used for generating and outputting an electromagnetic signal. Optionally, the near-field output device 105 according to the embodiment of the present invention uses air permeability U0 as a field transmission medium, where an oscillation waveform is 38KHz, a corresponding wavelength is about 8 meters, a transmitting antenna with an optimal transmitting antenna length according to a wave being a quarter wavelength is about 2 meters, and an omnidirectional antenna should be a straight antenna. Further, in order to avoid the energy being emitted in the form of electromagnetic waves, the near-field output device 105 according to the embodiment of the present invention uses a spiral-type rotating transmission disk with a total length of 0.5 m as a magnetic field transmission output.
In some embodiments, the near field transmitter 10 further comprises: a power management module 101 connected to the near field outputter 105; the power management module 101 is used for providing power signals to the near field transmitter 10 and performing power management.
Alternatively, the power management module 101 may be used by multiple batteries in parallel.
In some embodiments, the near field transmitter 10 further comprises: a waveform generator 102 for generating a waveform signal. Optionally, the waveform signal generated by the waveform generator 102 is a sinusoidal oscillation wave.
In some embodiments, the near field transmitter 10 further comprises: a switch indication module 103 connected with the power management module 101; the switch indication module 103 is used for performing switch indication. Optionally, the switch indication module 103 may indicate a switch of the power supply.
In some embodiments, the near field transmitter 10 further comprises: an identity encoding module 104 connected to the near field exporter 105; the identity encoding module 104 is used for identity encoding of the electromagnetic signal generated by the near-field output device 105. Optionally, the identity encoding module 104 may encode the electromagnetic signal generated by the near-field output device 105 to avoid interference of other signals.
In some embodiments, the field strength receiving processor 20 includes: a magnetic field induction module 201; the magnetic field induction module 201 is configured to induce the electromagnetic signal emitted by the near field emitter 10 and output an induction signal.
In some embodiments, the field strength receiving processor 20 further comprises: a waveform processing module 202 connected to the magnetic field induction module 201; the waveform processing module 202 is configured to shape and amplify the sensing signal, and output a shaped and amplified waveform signal.
In some embodiments, the field strength receiving processor 20 further comprises: a signal identity authentication module 202 connected to the waveform processing module 202; the signal identification module 202 is configured to identify the waveform signal and output the identified signal. The received signal may be identified by the signal identification module 202 to filter out interfering signals.
In some embodiments, the field strength receiving processor 20 further comprises: a digital-to-analog conversion module 204 connected with the signal identity authentication module 202; the digital-to-analog conversion module 204 is configured to perform digital-to-analog conversion processing on the signal subjected to the identity authentication, and output a digital signal.
In some embodiments, the field strength receiving processor 20 further comprises: a quantization output module 205 connected to the digital-to-analog conversion module 204; the quantization output module 205 is configured to output a quantized signal after performing quantization processing on the digital signal output by the digital-to-analog conversion module 204. Optionally, the quantization output module 205 may perform proportional quantization on the received signal.
Referring to fig. 3 and 4, fig. 3 and 4 are circuit diagrams of an embodiment of the near field transmitter 10 provided in the present invention.
As shown in fig. 3, the power management module 101 includes: the battery pack comprises four batteries of P2, P5, P6 and P7, wherein the four batteries can be realized by 5 # 3.6V alkaline batteries which are used in parallel. As shown in fig. 3, the first diode D1 and the third diode D3 may form an anti-reverse circuit, which may prevent the reverse connection of the batteries, and prevent the batteries from being shorted with each other to cause a danger or damage to the device if the batteries are mistakenly reverse connected. Wherein S2 is a self-locking switch, which plays a role in controlling the on-off of the battery power supply by hardware.
As shown in fig. 3, the operational amplifier U3B is used as a low power detection unit, and the 2.5V reference voltage provided by U2 is provided to the negative input of the operational amplifier, and S3 is a precision potentiometer for adjusting the sampling voltage of the battery power, and performing a low power operation according to the discharge curve characteristic of the battery and the battery power set at 2.8V. Once the battery is low, the operational amplifier drives the sixth diode D6 to work, the sixth diode D6 is a fast flashing LED, and when the battery is low, the sixth diode D6 continuously flashes to indicate that the user needs to replace the battery.
Further, as shown in fig. 3, the switch indication module 103 is implemented by a fourth diode D4. Wherein the fourth diode D4 is a green light emitting diode connected in series with a twelfth resistor R12 and a fifteenth resistor R15 for use in the circuit, when the switch is pressed, the battery supplies power to the indicating circuit, and the fourth diode D4 emits green light to indicate that the device has been operated.
As shown in fig. 4, the waveform generator 102 is an oscillating circuit that oscillates a sine wave with an oscillation frequency of 38KHz, the oscillating circuit operates in a positive feedback manner with a fourth transistor Q4 in the circuit, a first inductor L1, a tenth capacitor C10, a sixth capacitor C6, a seventh capacitor C7, and an eleventh capacitor C11 are used as frequency-selecting elements for oscillation to form a frequency-selecting network of LC, and an eighth resistor R8 and a tenth resistor R10 are used as bias voltages of the fourth transistor Q4, so that the fourth transistor Q4 can start oscillation, and output stability of the waveform is maintained.
As shown in fig. 4, the identity code module 104 may use U3A as a main control component, the power source is provided to the positive input pin of U3A through the eighteenth resistor R18 and the twentieth resistor R20 by serial sampling, and the output voltage of U3A at pin 1 is provided to S4 (precision potentiometer) and the twenty-first resistor R21 as a parallel reference voltage of the positive input pin, the voltage of this pin exhibits schmidt characteristic during normal operation, the signal output by pin 1 simultaneously provides the excitation voltage to the negative input of U3A through the RC circuit composed of the seventeenth resistor R17 and the thirteenth capacitor C13, and since the electrical characteristics of the output pin and the negative input pin are opposite, the oscillation of square wave occurs in the whole circuit after RC negative feedback. The corresponding frequency can be adjusted by adjusting the value of S4, and the signal is modulated into a modulation wave of 10Hz, so that the identification coding of the transmitted signal is realized. After the modulated signal is amplified in two stages through a first triode Q1 and a second triode Q2, a bilateral modulation signal formed by a third triode Q3, a second diode D2 and a seventh resistor R7 is reduced into a unilateral modulation signal and sent to a next-stage circuit.
As shown in fig. 4, the near field output device 105 outputs the magnetic field transmission output to the field intensity receiving processor 20 through the P4 as a magnetic field transmission with a spiral type rotating transmitting disk with a total length of 0.5 meter.
As shown in FIG. 5, the magnetic field response module is P2 as a field receiver, and the fifth capacitor C5 as a coupling capacitor transfers the received magnetic field signal to the next stage of processing.
As shown in fig. 5, the first resistor R1 and the twelfth resistor R12 are used as dc bias resistors of the sixth transistor Q6, and the sixth transistor Q6 is used as a common collector amplifying circuit, which has a characteristic of low input impedance, and has a strong suppression effect on the coupling of an ambient accidental magnetic field, such as the start and stop of a motor, and a telephone signal, so as to effectively suppress a received interference signal. The amplified signal is coupled to the collector output consisting of the fourth triode Q4 by a blocking capacitor C7 for reverse amplification, and the amplification of the stage is designed to be about 12 times of amplification factor without considering the coupling factor between electrodes. The network converter composed of the fifth triode Q5, the second diode D2, the sixth resistor R6 and other elements converts the amplified signal from the previous stage into a dc band coded signal proportional to the amplitude and transmits the signal to the next stage for processing.
As shown in fig. 6, a direct current signal is transmitted to the single chip microcomputer U1 by the twenty-third resistor R23 to be subjected to ADC reading, the strength of the signal is judged, and then the U4A is used as a comparator to provide the identity information converted by the previous stage to the break port (the 13 th pin of the single chip microcomputer U1) to be used as the identity identification of the signal.
As shown in fig. 6, the signal after the identification is processed by the single chip microcomputer U1 for analog-to-digital conversion of the signal amplitude.
The numerical value obtained through analog-to-digital conversion is converted into a corresponding dose rate value in a proportional mode through the single chip microcomputer U1, and then the radiation signal spectrum obtained in advance is called according to the dose rate value, so that the quantitative output of the obtained signal is achieved. The twenty-seventh resistor R27 sends the quantized signal of the single chip microcomputer to the seventh triode Q7 for reverse switching value output, and meanwhile, the seventh triode Q7 also plays a role in isolating the original instrument component and finally sends the signal to the original instrument component through the P8 interface.
Further, as shown in fig. 2, an embodiment of the present invention also provides a non-radioactive ray monitoring simulation teaching apparatus, including: the embodiment of the utility model discloses a non-radioactive ray simulation device and an original instrument component connected with the non-radioactive ray module device.
Optionally, the original meter components include, but are not limited to, an environmental radiation measuring instrument, a surface pollution monitor, and an electronic personal meter, and are used as a ray receiving and processing display terminal. The environment radiation measuring instrument uses two environment radiation measuring instruments S100 and 6150AD5 used in a nuclear power plant, and the environment radiation measuring instruments are respectively called simulation S100 and simulation 6150AD5 after the field intensity receiving processor 20 is installed; the surface pollution monitor uses a PB-GM2 surface pollution monitoring probe used in a power plant, and is called as an analog GM2 monitoring probe after a field intensity receiving processor 20 is installed; the in-use 6150AD17 surface pollution monitoring probe of a power plant is used, and the probe is called a simulation 6150AD17 monitoring probe after the field intensity receiving processor 20 is installed; the electronic personal meter uses the EDP-G electronic personal dosimeter in use at the power plant, and is called an analog EPD after being installed with the field strength receiving processor 20. These devices perform a quantized output between the analog signal and the original device by the following method.
Specifically, simulating the signal receiving and converting working principle of S100, firstly, a signal spectrogram of the real S100 in the range from the background value to the highest measurement range is acquired by programming with a single chip, the signal spectrogram is compared with the analog signal received by the field intensity receiving processor 20, and according to different analog signal intensities, the signal in the corresponding signal spectrogram is sent to the input end of the original probe of S100, so as to simulate different received dose rates.
The signal receiving and converting operation principle of the simulation 6150AD5 is the same as that of the simulation S100.
The signal reception of the analog GM2 is the same as the conversion work principle analog S100.
The signal reception of the analog 6150AD17 monitoring probe is the same as the conversion working principle analog S100.
The signal receiving and converting working principle of the simulation EPD is that the original equipment is a silicon detector, and a light-emitting device is adopted to irradiate the silicon detector to generate signal output, so that the simulation EPD uses the light source excitation principle to carry out ray simulation. The EPD measuring range is divided into sections, different ranges are irradiated by different brightnesses, and brightness signals are controlled by the field intensity receiving processor 20 according to the strength of a magnetic field, so that when the EPD and a simulation source are simulated at different distances (namely, the distance change between a real EPD and a real radioactive source is simulated), the EPD probe outputs a measured value with equal proportional change.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (4)
1. A non-radioactive ray simulation apparatus, comprising: a near field transmitter and a field strength receiving processor;
the near field transmitter is used for carrying out non-radioactive ray simulation and outputting an electromagnetic signal; the near field transmitter includes: a near-field follower; the near-field output device is used for generating and outputting the electromagnetic signal; the near field transmitter further comprises: a waveform generator for generating a waveform signal; the near field transmitter further comprises: an identity encoding module connected with the waveform generator and the near field outputter; the identity coding module is used for identity coding the electromagnetic signal generated by the near-field output device;
the field intensity receiving processor is used for receiving the electromagnetic signals, performing signal identity identification, waveform processing, digital-to-analog conversion processing and quantization processing on the electromagnetic signals, and outputting the signals subjected to quantization processing; the field strength receiving processor includes: a magnetic field induction module; the magnetic field induction module is used for inducing the electromagnetic signal transmitted by the near field transmitter and outputting an induction signal; the field intensity receiving processor further comprises: the waveform processing module is connected with the magnetic field induction module; the waveform processing module is used for shaping and amplifying the induction signal and outputting a shaped and amplified waveform signal; the field intensity receiving processor further comprises: the signal identity authentication module is connected with the waveform processing module; the signal identity authentication module is used for authenticating the identity of the waveform signal and outputting a signal subjected to identity authentication; the field intensity receiving processor further comprises: the digital-to-analog conversion module is connected with the signal identity authentication module; the digital-to-analog conversion module is used for performing digital-to-analog conversion processing on the signal subjected to the identity authentication and outputting a digital signal; the field intensity receiving processor further comprises: the quantization output module is connected with the digital-to-analog conversion module; and the quantization output module is used for performing quantization processing on the digital signal output by the digital-to-analog conversion module and outputting a quantized signal.
2. The non-radioactive ray simulation apparatus of claim 1, wherein the near field transmitter further comprises: the power supply management module is connected with the near field output device;
the power management module is used for providing power signals for the near field transmitter and conducting power management.
3. The non-radioactive ray simulation apparatus of claim 2, wherein the near field transmitter further comprises: the switch indication module is connected with the power management module;
the switch indication module is used for indicating the switch.
4. A non-radioactive ray monitoring simulation teaching instrument is characterized by comprising: a non-radioactive ray simulation apparatus as claimed in any one of claims 1 to 3, and a raw meter component connected to said non-radioactive ray module apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120075248.XU CN215417216U (en) | 2021-01-12 | 2021-01-12 | Non-radioactive ray simulation device and ray monitoring simulation teaching instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120075248.XU CN215417216U (en) | 2021-01-12 | 2021-01-12 | Non-radioactive ray simulation device and ray monitoring simulation teaching instrument |
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| CN215417216U true CN215417216U (en) | 2022-01-04 |
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| CN202120075248.XU Active CN215417216U (en) | 2021-01-12 | 2021-01-12 | Non-radioactive ray simulation device and ray monitoring simulation teaching instrument |
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