CN206058911U - Neutron flux monitoring instrument - Google Patents

Neutron flux monitoring instrument Download PDF

Info

Publication number
CN206058911U
CN206058911U CN201620890617.XU CN201620890617U CN206058911U CN 206058911 U CN206058911 U CN 206058911U CN 201620890617 U CN201620890617 U CN 201620890617U CN 206058911 U CN206058911 U CN 206058911U
Authority
CN
China
Prior art keywords
module
display
control module
input control
neutron flux
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201620890617.XU
Other languages
Chinese (zh)
Inventor
陈修元
周慧琳
杜宇
宋凡
何碧容
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Kangtuo Automation Engineering Co Ltd
Original Assignee
Chengdu Kangtuo Automation Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengdu Kangtuo Automation Engineering Co Ltd filed Critical Chengdu Kangtuo Automation Engineering Co Ltd
Priority to CN201620890617.XU priority Critical patent/CN206058911U/en
Application granted granted Critical
Publication of CN206058911U publication Critical patent/CN206058911U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The utility model proposes a kind of neutron flux monitoring instrument, the control module of switching, and the communication module linked with outside industrial computer are judged including the high-voltage power module that electric energy is provided for whole equipment, the input control of the detector that standard detection signature is provided for rear class and selftest module, current measurement part and outside that instrument self checking is tested oneself is carried out connection and display portion, the conversion to current measurement signal;The current measurement part includes small current amplification module, automatic range switching module and signal amplification module;The input control and display include input control module, display module, are man-machine interface section.Neutron flux monitoring instrument has following functions:Small current measurement:The electric current of 1X10 6A~1X10 3A is measured;Automatic switching range:It is input into for different electric currents, automatically switches to corresponding range and measure;Display function;USB data transmission function.

Description

Neutron flux monitoring instrument
Technical field
This utility model is related to monitoring instrument, particularly relates to a kind of neutron flux monitoring instrument.
Background technology
Existing neutron flux measurement using single-chip microcomputer as master controller, operational amplifier carry out data conditioning amplification, after The switching of electrical equipment range, data Jing AD conversion are processed for digital signal.
Program major defect has:Single-chip microcomputer limited storage space, it is impossible to store mass data;Relay range is switched to Mechanical node, is easily introduced interference;Display portion power consumption is big.
Utility model content
The utility model proposes a kind of neutron flux monitoring instrument, to the automatic measurement of Weak current and can record, and The width measurement of detector level ground.
What the technical solution of the utility model was realized in:A kind of neutron flux monitoring instrument, including carrying for whole equipment High-voltage power module for electric energy, standard detection signature is provided for rear class and selftest module, the electric current that instrument self checking is tested oneself is carried out Measurement part, and outside detector connection input control and display portion, switching is judged to the conversion of current measurement signal Control module, and the communication module linked with outside industrial computer;The current measurement part includes that small current amplifies mould Block, automatic range switching module and signal amplification module;The input control and display include input control module, show mould Block, is man-machine interface section.
Preferably, the high-voltage power module outfan connects the detector and selftest module of outside, self-inspection mould respectively Block outfan connects input control module, and the outfan connection automatic range switching module of input control module, automatic range are cut The outfan connection small current amplification module of mold changing block, the outfan connection signal amplification module of small current amplification module, signal The outfan link control module of amplification module, the outfan of control module connect display module and high-voltage power module respectively, And interconnect between communication module;Industrial computer outside the outfan connection of the communication module;The output of outside detector End connection input control module.
Preferably, the neutron flux monitoring instrument software includes control module software and human-machine operation software two parts.
Preferably, the control module is designed with AVR single chip ATMEGA16 with AD functions.
Compared with prior art, the utility model has the advantage of:
Neutron flux monitoring instrument has following functions:
(1) small current measurement:The electric current of 1X10-6A~1X10-3A is measured;
(2) automatic switching range:It is input into for different electric currents, automatically switches to corresponding range and measure;
(3) display function;
(4) USB data transmission function.
Neutron flux monitoring instrument is used to measure, supervise the small current signal for showing and recording from miniature fission chamber.Signal Jing is adjusted Reason, amplification are shown and by USB transmission on the spot to computer disposal.
Small current measurement:The electric current of 1X10-6A~1X10-3A is measured;Automatic switching range:For different electricity Stream input, automatically switches to corresponding range and measures;LCD display functions;USB data transmission function;Host computer data processing Function.
Description of the drawings
Fig. 1 is of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model, rather than the reality of whole Apply example.Based on the embodiment in this utility model, those of ordinary skill in the art institute under the premise of creative work is not made The every other embodiment for obtaining, belongs to the scope of this utility model protection.
Embodiment:Referring to Fig. 1,
Neutron flux monitoring instrument includes:High-voltage power module, selftest module, input control module, automatic range switching mould Block, small current amplification module, signal amplification module, control module, display module, communication module.
The neutron flux monitoring instrument course of work is:
1) small current measurement:High-voltage power module provides drive signal for detector, and detector is in different radiation parameters The current signal of lower output 1X10-6A~1X10-3A scopes, Jing input control modules, automatic range switching module, small current are put After big module, the process of signal amplification module, transmitting to control module carries out data processing, the data transfer that control module will be received Shown to display module on the spot, and transmit to industrial computer preservation, calculate neutron flux values by communication module.
2) self-inspection:High-voltage power module drives selftest module to export the current signal of 1X10-6A~1X10-3A scopes, Jing After input control module, automatic range switching module, small current amplification module, signal amplification module are processed, transmit to control mould Block carries out data processing, and the data transfer of reception is shown on the spot by control module to display module, and is transmitted by communication module Current signal value is shown to industrial computer.Current value and selftest module output current value are shown relatively, it is self-inspection that deviation is not more than 1% It is qualified, current measurement can be carried out.
3) level ground measurement:Industrial computer controlled output level ground measuring control signal, control module receive the signal, control high voltage power supply Output voltage changes from 100V to 200V, records output valve of the small current output Jing after intermediate circuit process, computed in software level ground width.
Power Management Design
Monitor power supply includes:
(1) high voltage power supply 100-200V is adjustable
(2) Switching Power Supply 24V
High voltage power supply adopts proframmable linear power supply, is communicated with control module by RS232 interfaces, so that high voltage power supply Output 0-200V adjustable voltages, are that detector and selftest module are powered.High voltage power supply parameter is as follows:
Input voltage alternating current 220V ± 10%, 50/60Hz
Output voltage/output current 0-200V/0-0.1A
Voltage-limiting protection/current-limiting protection 0-200V/0-0.1A
Ripple≤1mV (rms)
Programming resolution voltage 10mV, electric current 100uA
Voltage-programming accuracy≤setting value * 0.03%+20mV
DLL USB or RS232
Switching Power Supply provides 24V power supplys, and 24V power supply Jing DC-DC modules are converted to ± 15V ,+5V power supply.Wherein ± 15V is Small current amplification module, range handover module and signal amplification module are powered.+ 5V power supplys are control module, display module and lead to Letter module for power supply.Switching Power Supply parameter is as follows:Input voltage alternating current 220V ± 10%, 50Hz;Output voltage 24V/0-1.5A.
Current measurement is designed:Current measurement includes small current amplification module, range handover module, signal amplification module.Electricity Stream scope is 1X10-6A~1X10-3A, Jing after range handover module is amplified multiple adjustment is input into small current amplification module, The voltage signal of 0~1V is output as, then Jing signal amplification modules are processed as the voltage signal of 0~5V, transmit to control module Reason.
The requirement of the amplifier that small current amplification module is adopted:
Low input bias current, bias current are less than 250fA
Low maladjustment voltage, offset voltage are less than 1.00mV
Low imbalance temperature drift, less than 20uV/ DEG C
Low-power consumption, source current are less than 700uA
High common code impedance, more than 1010 Ω
From high-precision current amplifier, realize that small current accurately amplifies.
Signal amplification module realize voltage signal amplify, should adopt high precision operating amplifier, composition amplifying circuit, Realize that the high-precision linear of voltage amplifies.The part adopts precision operational-amplifier, amplification to be set to 2 times.
The output voltage of signal amplification module is transmitted to the AD Sampling Interfaces of control module, according to the electricity of control module identification Pressure scope exports corresponding control signal, and the range gear of adjust automatically range handover module realizes automatic gear adjustment.Range Handover module is controlled using midget relay, correspondence corresponding relay conducting during adjustment gear, realizes reliable range switching.
Input control and display design
Input control and display include input control module, display module, are man-machine interface section.
Input control module arranges self-inspection/test conversion switch, realizes self-inspection/test function switching.
Display module enters row data communication with control module, the current data tested is shown in panel, is easy to scene Read.
Control module is designed
Control module is designed with AVR single chip ATMEGA16 with AD functions, realizes following functions:Current measurement signal AD conversion;The scope of current measurement signal judges;Control display module shows current value;Output range switching signal;With it is logical Letter module carries out data exchange.
Self-inspection is designed
Selftest module provides standard detection signature for rear class, carries out instrument self checking and tests oneself.Selftest module sets 4 electric current outputs Gear, respectively 0.5 × 10-3A, 0.5 × 10-4A, 0.5 × 10-5A, 0.5 × 10-6A, cutting by input control module Change, respectively input current amplification module.After intermediate module process, show current value on display module, and transmit to Industrial computer carries out software judgement.
Host computer communication scheme
Control module transmits current data to communication module, and communication module carries out data by USB interface with industrial computer Exchange.Can process so as to industrial computer, show tested current data, industrial computer also can transmitting control commands make control module control Make corresponding partial act.
Software design
Neutron flux monitoring instrument software includes two parts:Control module software and human-machine operation software.
Control module software completes the reading of input signal, and data conversion and scope judge, liquid crystal display, output control work( Can, it is made up of following procedure:A/D converse routines;Liquid crystal display program;Data processor;Gear Output Control Program.
Human-machine operation software completes data and calculates and show, self-inspection judges and shows, data communication, the control of high-tension electricity source value Function is measured with level ground, using LabView software programmings, comprising following procedure:Main interface shows program;Self-inspection determining program;USB DCP;Data calculation procedure;Magnitude of voltage is controlled and level ground process of measurement.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in this utility model Protection domain within.

Claims (3)

1. a kind of neutron flux monitoring instrument, it is characterised in that:After the high-voltage power module of electric energy being provided for whole equipment, is Level provides standard detection signature and carries out the detector company of selftest module, current measurement part and outside that instrument self checking is tested oneself What is connect is input into the control module that control and display portion, the conversion judgement to current measurement signal switch, and the work with outside The communication module that control chain connects;The current measurement part includes small current amplification module, automatic range switching module and signal Amplification module;The input control and display include input control module, display module, are man-machine interface section.
2. neutron flux monitoring instrument according to claim 1, it is characterised in that:The high-voltage power module outfan difference Detector and selftest module outside connection, selftest module outfan connection input control module, the output of input control module End connection automatic range switching module, the outfan connection small current amplification module of automatic range switching module, small current are amplified The outfan connection signal amplification module of module, the outfan link control module of signal amplification module, the output of control module End connects display module and high-voltage power module respectively, and interconnects between communication module;The outfan of the communication module connects Connect the industrial computer of outside;The outfan connection input control module of outside detector.
3. neutron flux monitoring instrument according to claim 1 and 2, it is characterised in that:The control module is designed with band AVR single chip ATMEGA16 of AD functions.
CN201620890617.XU 2016-08-16 2016-08-16 Neutron flux monitoring instrument Active CN206058911U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620890617.XU CN206058911U (en) 2016-08-16 2016-08-16 Neutron flux monitoring instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620890617.XU CN206058911U (en) 2016-08-16 2016-08-16 Neutron flux monitoring instrument

Publications (1)

Publication Number Publication Date
CN206058911U true CN206058911U (en) 2017-03-29

Family

ID=58381228

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620890617.XU Active CN206058911U (en) 2016-08-16 2016-08-16 Neutron flux monitoring instrument

Country Status (1)

Country Link
CN (1) CN206058911U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112466492A (en) * 2020-11-26 2021-03-09 中国核动力研究设计院 Measuring device for intermediate range of out-of-pile nuclear instrument system and application method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112466492A (en) * 2020-11-26 2021-03-09 中国核动力研究设计院 Measuring device for intermediate range of out-of-pile nuclear instrument system and application method thereof
CN112466492B (en) * 2020-11-26 2022-02-11 中国核动力研究设计院 Measuring device for intermediate range of out-of-pile nuclear instrument system and application method thereof

Similar Documents

Publication Publication Date Title
CN204166424U (en) Simple intelligent High-accuracy direct current electronic load
CN102385937A (en) Leakage rate detection method and system for containment of nuclear power station
CN104535958A (en) Full-automatic testing system and method for electric energy meter environment temperature influence tests
CN205665316U (en) Novel resistance automatic measure device
CN207528816U (en) A kind of power measuring device
CN206058911U (en) Neutron flux monitoring instrument
CN105277111A (en) Star arrow locking device strain monitoring system
CN204302480U (en) A kind of monolithic processor controlled teslameter
CN108828431A (en) A kind of three road V/F conversion circuit test macros based on LabVIEW
CN105629072A (en) System for measuring multiplex resistance
CN108802654A (en) A kind of the automatic Calibration acquisition system and method for forming and capacity dividing test power supply
CN204301857U (en) Light power meter
CN103337154A (en) Intelligent wireless digital-readout displacement detection/monitoring system
CN203072169U (en) Wireless communication module performance evaluation tool with high reliability
CN110702735A (en) Residual chlorine electrode calibration method and water quality detection instrument
CN203298899U (en) Verification instrument of temperature controller of transformer
CN207817064U (en) A kind of single-phase electrical appliance research and application device
CN205751214U (en) Test system for combustion gas data acquisition unit
CN101587143A (en) CT charge on-line detection device and detection method
Qian et al. Application of rtd sensor in the real time measurement and wireless transmission
CN103558570A (en) Portable voltage monitor field calibration tester
CN204241515U (en) A kind of interface adapter detected for hypervelocity magnetoelectricity hard disk
CN210180472U (en) Intelligent sensor power supply device
CN213934178U (en) Full-automatic electric energy meter on-site calibration device
CN203350362U (en) Novel semiconductor resistance testing system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant