CN107785085A - A kind of impulse waveform measurement apparatus with network communications capability - Google Patents
A kind of impulse waveform measurement apparatus with network communications capability Download PDFInfo
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- CN107785085A CN107785085A CN201710992997.7A CN201710992997A CN107785085A CN 107785085 A CN107785085 A CN 107785085A CN 201710992997 A CN201710992997 A CN 201710992997A CN 107785085 A CN107785085 A CN 107785085A
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- impulse waveform
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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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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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention discloses a kind of impulse waveform measurement apparatus with network communications capability, described device includes：Positive or negative high voltage module, for applying positive or negative high voltage to detector；Measuring and amplifying circuit, the current signal for detector to be gathered are amplified, and are converted into analog quantity voltage signal；Sampling and processing module, for analog quantity voltage signal and initial signal to be handled, including：Calculate corresponding pulse parameter, storage pulse Wave data；Communication module, for, to communications network system server, the technique effect of network service can be realized with reactor I＆C system server by realizing the impulse waveform measurement apparatus in the application by pulse parameter and impulse waveform data transfer.
Description
Technical field
The present invention relates to the online Nuclear Instrument of reactor, online reactor Nuclear Data fields of measurement, in particular it relates to a kind of tool
There is the impulse waveform measurement apparatus of network communications capability.
Background technology
Pulsed reactor is to use uranium hydrogen zirconium fuel element, has the nuclear reactor of very big prompt negative temperature coefficient, and it can be with
By Pulse control rod, ejection reactor core, the positive reactivity very big to reactor core introducing make reactor reach wink at a high speed under lower power levels
Send out critical.Now prompt negative temperature coefficient makes reactive reduction, heap power drastically decline after reaching certain peak value, so as to form one
Individual pulse peak.Whole pulse generation is in the time interval of a few tens of milliseconds.The pulse that impulse waveform has directly reacted reactor is special
Property, improved for the safe operation of pulsed reactor, design and performance study provides important data.
Impulse waveform measurement apparatus is to measure unique instrument of reactor impulse waveform and pulse parameter.Impulse waveform measures
It is the larger technology of a difficulty, because of the most short only several milliseconds of pulse process, it is desirable to which impulse waveform measurement apparatus corresponds to range
Response time reach musec order；Simultaneously need to sample multiple parameters in extremely short pulse process and data at
Reason, it is desirable to which impulse waveform measurement apparatus has high sampling rate and data-handling capacity.
Impulse waveform measurement apparatus is a kind of special measurement instrument, and traditional impulse waveform measurement apparatus, which has plenty of to utilize, to be shown
Mating forms the instruments such as ripple device temporarily, has plenty of and special amplifying unit and data processing unit are devised based on industrial computer.
But these instrument are all independent experiment equipment, without network communications capability, result of the test can not be stored and be led to by network
Letter agreement is sent on the webserver, i.e., traditional impulse waveform measurement apparatus, which cannot connect to turn on distributed network, is
One sub- equipment of system server, can only complete impulse waveform measurement function in isolation.
The content of the invention
The invention provides a kind of impulse waveform measurement apparatus with network communications capability, solves traditional impulse wave
Shape measurement apparatus does not have the technical problem of network communications capability, and realizing impulse waveform measurement apparatus in the application can be with
Reactor I＆C system server realizes the technique effect of network service.
For achieving the above object, this application provides a kind of impulse waveform with network communications capability to measure dress
Put, described device includes：
Positive or negative high voltage module, for applying positive or negative high voltage to detector, effect and purpose supply high pressure to detector, made
Obtain detector normal work；
Measuring and amplifying circuit, the current signal for detector to be gathered are amplified, and are converted into analog quantity voltage letter
Number；
Sampling and processing module, for analog quantity voltage signal and initial signal to be handled, including：Calculate corresponding arteries and veins
Rush parameter, storage pulse Wave data；
Communication module, for by pulse parameter and impulse waveform data transfer to communications network system server.
Further, communication module can use CAN communication mode and ethernet communication mode.
Further, described device being capable of stepping measurement 10-9A to 3 × 10-3Pulse current waveform in the range of A, measurement
The minimum widith of pulse is less than 10ms, and the sample frequency of the device reaches 100kHz.By setting different range shelves, every grade is adopted
With the amplification resistance of different resistances, the measurement to pulse current in whole range ability is realized.At the sampling of high sampling rate
Manage program so that sample frequency reaches 100kHz.
Further, when the peak power of pulse exceedes setting value, measurement apparatus can be by communication module to reactor
Protection system provides Reactor trip initial signal.
Further, impulse waveform measurement apparatus calculates various pulse parameters, wrapped by measuring detector current signal
Include：Pulse peak power npCalculate, sequential search is carried out to whole impulse waveform by ranking method, it is n to find out maximump；
Pulse peak width τ is calculated, by searching for former and later two np/ 2 points, subtract each other at the time of this 2 points are occurred and obtain
τ；
Pulse total mark ENERGY EsumCalculate, whole impulse waveform is subjected to numerical integration to the time, i.e., to whole impulse wave
Shape is summed to obtain Esum；
Pulse wink, hair integral energy E was calculated, pulse total mark ENERGY EsumComprising introduce reactivity caused by wink hair power and
Both power integration sum is overflowed caused by delayed neutron, send out in wink integral energy E and control rod in the heap top residence time relevant, wink
Sending out integral energy, thus formula calculates：E=1.135np·τ；
Reactor minimum period T is calculated, and the reactor minimum period, thus formula calculated：T=0.284 τ；
Initial reactivity ρ 0 is calculated, and after the reactor minimum period is calculated, thus formula calculates initial reactivity：
Wherein l：Prompt neutron removal lifetime, T：Reactor minimum period, β：Effective delayed neutron fraction.
Further, the ethernet communication mode of impulse waveform measurement apparatus is to be passed based on the Modbus messages on TCP/IP
Defeated agreement, impulse waveform measurement apparatus is as client computer, and reactor communications network server is as server, when impulse waveform is surveyed
After measuring device completion one-shot measurement, i.e., transmission request of data is sent to server, server sends response report after receiving the request
Text, client computer will be measured after receiving response message and result of calculation is sent to server in batches, is passed so as to complete a data
It is defeated.
One or more technical schemes that the application provides, have at least the following technical effects or advantages：
The present invention devises a kind of new impulse waveform measurement apparatus, and the device can measure 10 with stepping-9A to 3 × 10-3A
In the range of pulse current waveform, sample frequency reaches 100kHz, and the device is calculated using the pulse waveform signal of measurement
Various pulse parameters, while the device compatibility CAN communication and ethernet communication mode, measurement and result of calculation can be passed through net
Network communication is sent to communications network server, realizes that intelligent network communicates.The present invention had both completed impulse waveform measurement function,
Again the device can be connected on distributed network system (DNS) turns into a sub- equipment, and solving typical measuring arrangements can not network
The drawbacks of communication, realize intelligent and networking.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention；
Fig. 1 is pulse waveform meter principle schematic in the application；
Fig. 2 is pulse waveform meter configuration schematic diagram in the application；
Fig. 3 is Modbus model of client/server schematic diagram in the application；
Fig. 4 is the request/response schematic diagram of the Modbus on TCP/IP in the application；
Fig. 5 is pulse waveform measurement signal schematic representation in the application.
Embodiment
The invention provides a kind of impulse waveform measurement apparatus with network communications capability, solves traditional impulse wave
Shape measurement apparatus does not have the technical problem of network communications capability, and realizing impulse waveform measurement apparatus in the application can be with
Reactor I＆C system server realizes the technique effect of network service.
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting mutually, the application's
Feature in embodiment and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from the other modes in the range of being described herein, therefore, protection scope of the present invention is not by under
The limitation of specific embodiment disclosed in face.
The present invention have developed a kind of new arteries and veins by studying the experiment process and measurement demand that pulsed reactor pulsing operation is tested
Rush waveform meter.
1) device can measure 10 with stepping-9A to 3 × 10-3Pulse current waveform in the range of A, measure the minimum of pulse
Width is less than 10ms, and the sample frequency of the device reaches 100kHz；
2) device can measure simultaneously storage pulse Wave data, while calculate the peak power of impulse waveform, pulse half
The parameters such as high wide and total mark energy；
3) device can be realized by the Modbus communications protocol based on TCP/IP and reactor I＆C system server
Network service, the parameters such as impulse waveform data, pulse peak power, halfwidth and total mark energy are sent to server, and by
Large screen display.
Unique nuclear measurement instrument when impulse waveform measurement apparatus is the operation of reactor pulse mode, it can send out every time
When penetrating pulse, the initial signal of burst rod transmitting is received, while the current signal of detector is entered using fast Current amplifier technology
The quick amplification of row, measures exomonental waveform, by being changed into data signal after sample processing unit, calculates pulse peak work(
The parameters such as rate, pulse halfwidth and total mark energy.Simultaneously impulse waveform measurement apparatus can by measurement result (impulse waveform,
Pulse parameter etc.) it is stored in device caching, and communication network system is sent to by CAN communication mode or ethernet communication mode
System server, is shown the data received by server on a display screen.The schematic diagram of impulse waveform measurement apparatus is such as
Shown in Fig. 1.
Simultaneously when the peak power of pulse exceedes setting value, impulse waveform measurement apparatus can carry to reactor protection system
For Reactor trip initial signal.
Impulse waveform measurement apparatus composition includes：Ionisation chamber high pressure, fast Current amplifier, the input of High Speed Analog amount, CAN lead to
Letter, ethernet communication, analog input output switch parameter and low-tension supply, it configures as shown in Figure 2.
Impulse waveform measurement apparatus while compatible CAN communication mode and ethernet communication mode.
Impulse waveform measurement apparatus main performance index is as follows：
1) current measuring range：1×10-9A~3 × 10-3A
2) 7 range shelves are divided, i.e.,：1×10-9A、1×10-8A、1×10-7A、1×10-6A、1×10-5A、1×10-4A and 1 ×
10-3A。
3) accuracy of measurement (fiducial error)≤1.5% (full scale) (10-9A~10-8A)
≤ 1% (full scale) (10-8A~10-3A)；
4) response time：
1×10-9A, 1 × 10-8The A shelves response times：≤3ms；
1×10-7The A shelves response times：≤2ms；
1×10-6A~3 × 10-3The A shelves response times：≤1ms.
5) CAN communication speed：100kbps~1Mbps (configurable), supported protocol：CAN2.0B bus specifications
6) ethernet communication speed：10/100Mbps (configurable), compatibility：IEEE802.3, IEEE802.3u, support
Agreement：Modbus
Impulse waveform measurement apparatus calculates various pulse parameters, particular content is such as by measuring detector current signal
Under：
1) pulse peak power npCalculate, sequential search is carried out to whole impulse waveform by ranking method, finds out maximum i.e.
For np；
2) pulse peak width τ is calculated, by searching for former and later two np/ 2 points, subtract each other at the time of they are occurred and obtain
τ；
3) pulse total mark ENERGY EsumCalculate, whole impulse waveform is subjected to numerical integration to the time, i.e., to whole pulse
Waveform is summed to obtain Esum；
4) pulse wink hair integral energy E is calculated, pulse total mark ENERGY EsumPower is sent out comprising introducing in wink caused by reactivity
With delayed neutron caused by overflow both power integration sum, wink, hair integral energy E was relevant in the heap top residence time with control rod,
Wink hair integral energy thus formula calculating：E=1.135np·τ；
5) reactor minimum period T is calculated, and the reactor minimum period is short before heap temperature feedback not yet works
In time, power increases the time required for e times, and the reactor minimum period, thus formula calculated：T=0.284 τ；
6) initial reactivity ρ0Calculate, after the reactor minimum period is calculated, thus formula calculates initial reactivity：
Wherein l：Prompt neutron removal lifetime, T：Reactor minimum period, β：Effective delayed neutron fraction.
Impulse waveform measurement apparatus can be in a manner of compatible CAN communication or ethernet communication mode, i.e. impulse waveform measurement dress
Put to measure by CAN communication or ethernet communication and be sent to result of calculation on communication network server, for servicing
Device is stored and display screen is shown.
The CAN communication mode of impulse waveform measurement apparatus supports CAN2.0B bus specifications, is two-ways transmitting, transmission speed
Rate can be configured to 100kbps~1Mbps.
The ethernet communication mode of impulse waveform measurement apparatus is based on the Modbus Message Protocols on TCP/IP.
Modbus is the application Message Protocol on the 7th layer of osi model, and it is being connected between different type bus or the network equipment
Client/server communication is provided.I.e. equipment is connected on same TCP/IP Ethernets, and the model as shown in Figure 3 is based on 4
Kind type of message：
Modbus is asked --- and client computer is sent on network for starting the message of issued transaction；
Modbus is confirmed --- the request message that server side receives；
Modbus is indicated --- the response message that server is sent；
Modbus is responded --- the response message that client-side receives；
In the present invention, impulse waveform measurement apparatus is as client computer, and reactor communications network server is as server, visitor
Family machine sends data with fixed communication protocol encapsulation to server.When impulse waveform measurement apparatus complete one-shot measurement after, i.e., to
Server sends transmission request of data, and server sends response message after receiving the request, and client computer will after receiving response message
Measurement and result of calculation are sent to server in batches, so as to complete a data transfer.
Modbus TCP/IP carry out Modbus requests on network or the encapsulation of response is as shown in Figure 3.TCP/IP uses one
Special heading is planted to identify Modbus application datas.This heading is turned into MBAP headings.It is followed by Modbus
One protocol Data Unit (PDU) unrelated with Base communication layer of protocol definition, wherein function code will be held to server instruction
Which kind of operation of row.
Fig. 4 is refer to, impulse waveform measurement apparatus and communications network server are by the way of holding register is write, function
Code is 04, writes continuous data content to the fixing address of server using the function code, request PDU specifies originating register
Address and register number, the data type of write-in is shaping (int) or floating type (float).
The present invention is applied in the pulsed reactor impulse waveform measurement experiment of Xi'an, and experiment process is by this development
Impulse waveform measurement apparatus is connected on impulsive measurement detector, and reactor carries out the pulsing operation experiment of 4 different peak power,
The reactivity that each pulse testing introduces is respectively 3.45 yuan, 3.20 yuan, 2.0 yuan and 1.0 yuan, and (1 yuan=1 β, β are effectively deferred
Neutron fraction).
The measurement result of impulse waveform measurement apparatus is as shown in Figure 5.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
1. a kind of impulse waveform measurement apparatus with network communications capability, it is characterised in that described device includes：
Positive or negative high voltage module, for applying positive or negative high voltage to detector；
Measuring and amplifying circuit, the current signal for detector to be gathered are amplified, and are converted into analog quantity voltage signal；
Sampling and processing module, for analog quantity voltage signal and initial signal to be handled, including：Calculate corresponding arteries and veins
Rush parameter, storage pulse Wave data；
Communication module, for by pulse parameter and impulse waveform data transfer to communications network system server.
2. the impulse waveform measurement apparatus according to claim 1 with network communications capability, it is characterised in that communication mould
Block can use CAN communication mode and ethernet communication mode.
3. the impulse waveform measurement apparatus according to claim 1 with network communications capability, it is characterised in that the dress
Putting being capable of stepping measurement 10-9A to 3 × 10-3Pulse current waveform in the range of A, the minimum widith for measuring pulse are less than 10ms,
And the sample frequency of the device reaches 100kHz.
4. the impulse waveform measurement apparatus according to claim 1 with network communications capability, it is characterised in that work as pulse
Peak power when exceeding setting value, measurement apparatus can provide Reactor trip to reactor protection system by hardwire and initially believe
Number.
5. the impulse waveform measurement apparatus according to claim 1 with network communications capability, it is characterised in that impulse wave
Shape measurement apparatus calculates various pulse parameters by measuring detector current signal, including：
Pulse peak power npCalculate, sequential search is carried out to whole impulse waveform by ranking method, it is n to find out maximump；
Pulse peak width τ is calculated, by searching for former and later two np/ 2 points, subtract each other at the time of this 2 points are occurred and obtain τ；
Pulse total mark ENERGY EsumCalculate, whole impulse waveform is subjected to numerical integration to the time, i.e., whole impulse waveform entered
Row summation obtains Esum；
Pulse wink, hair integral energy E was calculated, pulse total mark ENERGY EsumComprising introducing wink hair power and deferred caused by reactivity
Both power integration sum is overflowed caused by neutron, wink, hair integral energy E was relevant in the heap top residence time with control rod, and wink sends out product
Dividing energy, thus formula calculates：E=1.135np·τ；
Reactor minimum period T is calculated, and the reactor minimum period, thus formula calculated：T=0.284 τ；
Initial reactivity ρ0Calculate, after the reactor minimum period is calculated, thus formula calculates initial reactivity：
Wherein l：Prompt neutron removal lifetime, T：Reactor minimum period, β：Effective delayed neutron fraction.
6. the impulse waveform measurement apparatus according to claim 2 with network communications capability, it is characterised in that impulse wave
The ethernet communication mode of shape measurement apparatus is based on the Modbus Message Protocols on TCP/IP, impulse waveform measurement apparatus
As client computer, reactor communications network server is as server, after impulse waveform measurement apparatus completes one-shot measurement, i.e.,
Transmission request of data is sent to server, server sends response message after receiving the request, after client computer receives response message
Measurement and result of calculation are sent to server in batches, complete a data transfer.
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| CN201710992997.7A CN107785085A (en) | 2017-10-23 | 2017-10-23 | A kind of impulse waveform measurement apparatus with network communications capability |
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| CN201710992997.7A CN107785085A (en) | 2017-10-23 | 2017-10-23 | A kind of impulse waveform measurement apparatus with network communications capability |
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