CN110727021B - Scintillator detector simulator - Google Patents
Scintillator detector simulator Download PDFInfo
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- CN110727021B CN110727021B CN201911127430.9A CN201911127430A CN110727021B CN 110727021 B CN110727021 B CN 110727021B CN 201911127430 A CN201911127430 A CN 201911127430A CN 110727021 B CN110727021 B CN 110727021B
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- monostable trigger
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T7/00—Details of radiation-measuring instruments
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
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- Spectroscopy & Molecular Physics (AREA)
- Measurement Of Radiation (AREA)
Abstract
The disclosure belongs to the technical field of nuclear power maintenance, and particularly relates to a scintillator detector simulation device. The scintillator detector simulation device can be used as a special tool device for overhauling a nuclear power field, and when a field instrument fails, the simulation device can be used for rapidly positioning the failure position; when the preventive maintenance of the nuclear power station refueling overhaul is performed, the device can be used as a special tool to test whether each function of the on-site treatment box is normal or not; the simulation device can also be applied to a radiation instrument training entity to simulate various faults of the scintillator type detector, and is used for training and teaching of the radiation instrument.
Description
Technical Field
The invention belongs to the technical field of nuclear power maintenance, and particularly relates to a scintillator detector simulation device.
Background
The scintillator detector is widely applied to process radiation monitoring systems and discharge flow radiation monitoring systems of nuclear power stations at home and abroad. The instrument is generally designed into a mode that the detector and the on-site processing box are separately installed, the detector and the on-site processing box are directly transmitted through a cable with high insulation performance, the measuring range of the instrument is wider, and the signal transmission distance is longer.
At present, when the instrument of the type has a fault condition during operation, no special tool exists in the market at present, and the display and alarm functions of the on-site processing box of the instrument can be tested, so that the fault positioning of the instrument is difficult.
Disclosure of Invention
To overcome the problems in the related art, a scintillator detector simulation apparatus is provided.
According to an aspect of the embodiments of the present disclosure, there is provided a scintillator detector simulation apparatus including: the device comprises a controller, a first monostable trigger and a second monostable trigger;
The controller is connected with the first monostable trigger, and the second monostable trigger is connected with the first monostable trigger;
The signal output end of the first monostable trigger is connected with a first switch, and the first switch is used for controlling the on-off of the output signal of the first monostable trigger;
The signal output end of the second monostable trigger is connected with a second switch, and the second switch is used for controlling the on-off of the output signal of the second monostable trigger;
The controller sends a first control signal to the first monostable trigger, and under the condition that the first switch is opened and the second switch is closed, the first monostable trigger is triggered by the first control signal, and a forward single pulse signal is output;
And under the condition that the controller sends a second control signal to the first monostable trigger, and the first switch is closed and the second switch is opened, the first monostable trigger is triggered by the second control signal, a forward single pulse signal is output to the second monostable trigger, and the second monostable trigger outputs a forward double pulse signal according to the received forward single pulse signal.
In one possible implementation, the scintillator detector simulation apparatus further includes: a first NOT gate output circuit and a third switch;
The signal receiving end of the first NOT gate output circuit is connected with the output end of the first monostable trigger;
The third switch is connected with the signal output end of the first NOT gate output circuit and is used for controlling the on-off of the output signal of the first NOT gate output circuit;
And under the condition that the controller sends a third control signal to the first monostable trigger, and the first switch is closed, the second switch is closed and the third switch is opened, the first monostable trigger is triggered by the third control signal, a positive single pulse signal is output to the first NOT gate output circuit, and the first NOT gate output circuit outputs a negative single pulse signal.
In one possible implementation, the scintillator detector simulation apparatus further includes: a second NOT gate output circuit and a fourth switch;
The signal receiving end of the second NOT gate output circuit is connected with the output end of the second monostable trigger;
the fourth switch is connected with the signal output end of the second NOT gate output circuit and is used for controlling the on-off of the output signal of the second NOT gate output circuit;
And under the condition that the controller sends a fourth control signal to the first monostable trigger, and the first switch is closed, the second switch is closed and the fourth switch is opened, the first monostable trigger is triggered by the fourth control signal, a positive single pulse signal is output to the second monostable trigger, a positive single pulse signal is output by the monostable first NOT gate output circuit, a positive double pulse signal is output by the second monostable trigger according to the received positive single pulse signal, and a negative double pulse signal is output by the second NOT gate output circuit.
In one possible implementation, the scintillator detector simulation apparatus further includes: a digital-to-analog converter and an operational amplifier;
the digital-to-analog converter is connected with the processor, and the operational amplifier is connected with the digital-to-analog converter;
the controller transmits a fifth control signal to the digital-to-analog converter, and the operational amplifier outputs an electric signal.
In one possible implementation, the electrical signals include current signals and voltage signals.
The invention has the beneficial effects that: the scintillator detector simulation device can be used as a special tool device for overhauling a nuclear power field, and when a field instrument fails, the simulation device can be used for rapidly positioning the failure position; when the preventive maintenance of the nuclear power station refueling overhaul is performed, the device can be used as a special tool to test whether each function of the on-site treatment box is normal or not; the simulation device can also be applied to a radiation instrument training entity to simulate various faults of the scintillator type detector, and is used for training and teaching of the radiation instrument.
Drawings
FIG. 1 is a block diagram illustrating a scintillator detector simulation apparatus, according to an example embodiment.
Detailed Description
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
FIG. 1 is a block diagram illustrating a scintillator detector simulation apparatus, according to an example embodiment. As shown in fig. 1, the scintillator detector simulation apparatus may include: the device comprises a controller, a first monostable trigger and a second monostable trigger; the controller may be, for example, a Single-chip microcomputer (Single-Chip Microcomputer) or a central processing unit (CPU, central processing unit), and the type of the controller is not limited in the embodiments of the present disclosure.
The controller can be connected with the first monostable trigger, and the second monostable trigger is connected with the first monostable trigger; the signal output end of the first monostable trigger is connected with a first switch, and the first switch is used for controlling the on-off of an output signal of the first monostable trigger; the signal output end of the second monostable trigger is connected with a second switch, and the second switch is used for controlling the on-off of the output signal of the second monostable trigger;
As an example of this embodiment, when the operator needs to obtain the forward direction single pulse signal, the first switch may be turned on, the second switch may be turned off, and a first control instruction for generating the forward direction single pulse signal may be sent to the controller through the control panel, the controller may generate the first control signal corresponding to the first control instruction according to the received first control instruction, and the first monostable trigger may be triggered by the first control signal, and output the forward direction single pulse signal.
Under the condition that an operator needs to obtain a forward double-pulse signal, the first switch can be turned off, the second switch can be turned on, a second control instruction for generating the forward double-pulse signal can be sent to the controller through the control panel, the controller can generate a second control signal corresponding to the second control instruction according to the received second control instruction, the first monostable trigger can be triggered by the first control signal and outputs a forward single-pulse signal to the second monostable trigger, and the second monostable trigger can output the forward double-pulse signal according to the received forward single-pulse signal.
In one possible implementation, the scintillator detector simulation apparatus may further include: a first NOT gate output circuit and a third switch; the signal receiving end of the first NOT gate output circuit is connected with the output end of the first monostable trigger; the third switch is connected with the signal output end of the first NOT gate output circuit and is used for controlling the on-off of the output signal of the first NOT gate output circuit;
under the condition that an operator needs to obtain a negative single pulse signal, the first switch and the second switch can be closed, the third switch is opened, a third control instruction for generating the negative single pulse signal can be sent to the controller through the control panel, the controller can generate a third control signal corresponding to the third control instruction according to the received second control instruction, the controller sends the third control signal to the first monostable trigger, the first monostable trigger is triggered by the third control signal, the positive single pulse signal is output to the first NOT gate output circuit, and the first NOT gate output circuit outputs the negative single pulse signal.
In one possible implementation, the scintillator detector simulation apparatus further includes: a second NOT gate output circuit and a fourth switch; the signal receiving end of the second NOT gate output circuit is connected with the output end of the second monostable trigger; the fourth switch is connected with the signal output end of the second NOT gate output circuit and is used for controlling the on-off of the output signal of the second NOT gate output circuit;
Under the condition that an operator needs to obtain a negative single pulse signal, the first switch and the second switch can be closed, the fourth switch is opened, a fourth control instruction for generating the negative single pulse signal can be sent to the controller through the control panel, the controller can generate a fourth control signal corresponding to the fourth control instruction according to the received fourth control instruction, the controller sends the fourth control signal to the first monostable trigger, the first monostable trigger is triggered by the fourth control signal, a positive single pulse signal is output to the second monostable trigger, the monostable first NOT gate output circuit outputs the positive single pulse signal, the second monostable trigger outputs a positive double pulse signal according to the received positive single pulse signal, and the second NOT gate output circuit outputs the negative double pulse signal.
In one possible implementation, the scintillator detector simulation apparatus may further include: a digital-to-analog converter and an operational amplifier; the digital-to-analog converter can be connected with the processor, and the operational amplifier can be connected with the digital-to-analog converter; the controller may send a fifth control signal to the digital-to-analog converter and the operational amplifier outputs an electrical signal, which may be, for example, a current signal or a voltage signal.
In one application example, the scintillator detector simulation apparatus of the embodiments of the present disclosure may be integrated in a board chip that is powered by +12v;
The scintillator detector simulation apparatus may have a pulse triggering function: the method comprises the following steps of dividing the method into a single pulse triggering mode and a double pulse triggering mode, and selecting and switching through a control switch on a control panel of a scintillator detector simulation device; the pulse amplitude is set to be non-adjustable and fixed to be 5V; the single pulse frequency is regulated by a potentiometer; the double pulse interval can be adjusted by a potentiometer; the pulse polarity can be output as positive pulse or negative pulse; the pulse signal of the scintillator detector simulation device can be automatically triggered by the controller circulation; the signal output may be changed by key input of the control panel.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. The invention is intended to include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (5)
1. A scintillator detector simulation apparatus, characterized in that the scintillator detector simulation apparatus includes: the device comprises a controller, a first monostable trigger and a second monostable trigger;
The controller is connected with the first monostable trigger, and the second monostable trigger is connected with the first monostable trigger;
The signal output end of the first monostable trigger is connected with a first switch, and the first switch is used for controlling the on-off of the output signal of the first monostable trigger;
The signal output end of the second monostable trigger is connected with a second switch, and the second switch is used for controlling the on-off of the output signal of the second monostable trigger;
The controller sends a first control signal to the first monostable trigger, and under the condition that the first switch is opened and the second switch is closed, the first monostable trigger is triggered by the first control signal, and a forward single pulse signal is output;
And under the condition that the controller sends a second control signal to the first monostable trigger, and the first switch is closed and the second switch is opened, the first monostable trigger is triggered by the second control signal, a forward single pulse signal is output to the second monostable trigger, and the second monostable trigger outputs a forward double pulse signal according to the received forward single pulse signal.
2. The scintillator detector simulation apparatus of claim 1, the scintillator detector simulation apparatus is characterized in that the scintillator detector simulation apparatus further comprises: a first NOT gate output circuit and a third switch;
The signal receiving end of the first NOT gate output circuit is connected with the output end of the first monostable trigger;
The third switch is connected with the signal output end of the first NOT gate output circuit and is used for controlling the on-off of the output signal of the first NOT gate output circuit;
And under the condition that the controller sends a third control signal to the first monostable trigger, and the first switch is closed, the second switch is closed and the third switch is opened, the first monostable trigger is triggered by the third control signal, a positive single pulse signal is output to the first NOT gate output circuit, and the first NOT gate output circuit outputs a negative single pulse signal.
3. The scintillator detector simulation apparatus of claim 1, the scintillator detector simulation apparatus is characterized in that the scintillator detector simulation apparatus further comprises: a second NOT gate output circuit and a fourth switch;
The signal receiving end of the second NOT gate output circuit is connected with the output end of the second monostable trigger;
the fourth switch is connected with the signal output end of the second NOT gate output circuit and is used for controlling the on-off of the output signal of the second NOT gate output circuit;
and under the condition that the controller sends a fourth control signal to the first monostable trigger, the first switch is closed, the second switch is closed and the fourth switch is opened, the first monostable trigger is triggered by the fourth control signal, a positive single pulse signal is output to the second monostable trigger, a positive single pulse signal is output by the monostable first NOT gate output circuit, a positive double pulse signal is output by the second monostable trigger according to the received positive single pulse signal, and a negative double pulse signal is output by the second NOT gate output circuit.
4. The scintillator detector simulation apparatus of claim 1, the scintillator detector simulation apparatus is characterized in that the scintillator detector simulation apparatus further comprises: a digital-to-analog converter and an operational amplifier;
the digital-to-analog converter is connected with the controller, and the operational amplifier is connected with the digital-to-analog converter;
the controller sends a fifth control signal to the digital-to-analog converter, and the operational amplifier outputs an electrical signal.
5. The scintillator detector simulation apparatus of claim 4 wherein the electrical signals include current signals and voltage signals.
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CN201911127430.9A CN110727021B (en) | 2019-11-18 | 2019-11-18 | Scintillator detector simulator |
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CN201911127430.9A CN110727021B (en) | 2019-11-18 | 2019-11-18 | Scintillator detector simulator |
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CN110727021B true CN110727021B (en) | 2024-08-09 |
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CN211979213U (en) * | 2019-11-18 | 2020-11-20 | 中核核电运行管理有限公司 | Scintillator detector simulation device |
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US3777145A (en) * | 1972-06-23 | 1973-12-04 | Picker Corp | Automatic limit switch system for a scintillation device and method of operation |
JPH10197643A (en) * | 1997-01-06 | 1998-07-31 | Toshiba Corp | Radiation measuring device and radiation measuring system |
CN103399221B (en) * | 2013-07-10 | 2016-03-02 | 中国科学技术大学 | A kind of scintillation crystal fluorescent simulator and test macro thereof |
CN206523642U (en) * | 2016-12-28 | 2017-09-26 | 中核核电运行管理有限公司 | Nuclear power exhaust treatment system radiation monitoring equipment |
US10794758B2 (en) * | 2017-09-29 | 2020-10-06 | General Electric Company | System and method for verifying the integrity of a radiation detector |
CN109212587A (en) * | 2018-08-10 | 2019-01-15 | 苏州速核仪器有限公司 | The measuring device of automatic amendment scintillation detector radiation detection efficiency |
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