CN207751669U - A kind of energy measurement and calibration system for large scale laser instrument - Google Patents
A kind of energy measurement and calibration system for large scale laser instrument Download PDFInfo
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- CN207751669U CN207751669U CN201721776280.0U CN201721776280U CN207751669U CN 207751669 U CN207751669 U CN 207751669U CN 201721776280 U CN201721776280 U CN 201721776280U CN 207751669 U CN207751669 U CN 207751669U
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Abstract
The utility model is related to a kind of energy measurement for large scale laser instrument and calibration systems, belong to measurement of laser energy technical field, it pops one's head in including energy measurement, AD conversion module, group focuses on module, energy electric calibration component, core network and energy measurement and calibration control platform, the data transmission interface of the energy measurement probe is sequentially connected AD conversion module, group focuses on module and core network, the electric calibration interface of the energy measurement probe is connect by energy electric calibration component with core network, the energy measurement and calibration control platform are connect with core network, the utility model disclosure satisfy that the distributed measurement of large-scale multi-path laser device energy measurement, packet type controls, data and the centralized management of order, calibration process is easy, it is efficient.
Description
Technical field
The utility model belongs to measurement of laser energy technical field, relates in particular to a kind of for large scale laser instrument
Energy measurement and calibration system.
Background technology
High power solid-state laser device requires to complete the same hair real―time precision measurment to laser energy, and measuring characteristic exists
In being limited to light channel structure design, energy measurement probe must be distributed the different spatial for being arranged in device, i.e., distributed to survey
Amount；It is limited to the architecture design of control system, the multiple light beams for spatially meeting certain relationship are divided into a group, carry out unified
Control, i.e. packet type control；All data, order are all uniformly processed by centralized control system, i.e. the concentrate tube of data and order
Control.And these energy meters must also periodic calibration then need periodically to complete on hundred if by the way of optical alignment
The dismounting of thousand sets of energy meters greatly reduces the operational efficiency of device, it is, thus, sought for a kind of new laser-calibrated mode
The calibration to energy meter can be completed under conditions of without removing energy meter, and most convenient, quick way are exactly using electricity
Energy substitutes laser energy to carry out calibration of the heating completion to energy meter to energy meter probe.
In existing electric calibration mode, one is using resistance wire, in energy meter probe surrounding coiling, this mode is most
Big defect is, in a calibration process, among having a big chunk energy dissipation to air, cause the linearity of calibration with
And photoelectricity equivalence is relatively low；Also a kind of mode is to use sintering process, and planar resistor film is plated on the even body of heat, and such
Mode can obtain preferable heating uniformity and photoelectricity equivalence, but this mode is higher to technological requirement, and cost is also higher,
Cost can be made to be significantly increased under conditions of needing large-scale use.
Utility model content
For various deficiencies of the prior art, to solve the above-mentioned problems, it is proposed that a kind of for large scale laser instrument
Energy measurement and calibration system, the system use the carrier that thin foil hollow resistance is heated as electric calibration, are meeting homogeneous heating
The demand to technique and cost can be reduced under the premise of property, photoelectricity equivalence.
To achieve the above object, the utility model provides the following technical solutions：
A kind of energy measurement and calibration system for large scale laser instrument, including energy measurement probe, AD conversion module,
Group focuses on module, energy electric calibration component, core network and energy measurement and calibration control platform, the energy measurement
The data transmission interface of probe is sequentially connected AD conversion module, group's centralized processing module and core network, the energy measurement
The electric calibration interface of probe is connect by energy electric calibration component with core network, the energy measurement and calibration control platform with
Core network connects.
Further, group's centralized processing module is set as multiple, and it is multiple that each group focuses on module connection
Energy measurement is popped one's head in, and using a set of energy electric calibration component to multigroup energy measurement probe time-sharing multiplex, can not reduce calibration
Device development totle drilling cost is reduced in the case of efficiency.
Further, the energy measurement probe includes the absorber for being arranged in order bonding, heat guard, the even body of heat and sensing
Device is provided with thin foil hollow resistance, for being loaded onto electric flux during electric calibration between the even body of the heat and sensor
Among energy measurement probe.
Further, the thin foil hollow resistance is pasted on the even body surface face of heat by heat-conducting glue.
Further, the thin foil hollow resistance is alternately arranged into a matrix array with sensor.
Further, the energy measurement probe distal end is provided with a full impregnated glass as shielding window, is measured to reduce
And the influence of air-flow and temperature change to measurement in calibration process.
Further, the energy electric calibration component include the power supply output module being set up in parallel, accurate voltage measurement module,
Output and the function of measuring are decomposed, can not reduce power supply by precision current measurement module and multichannel handover module
Ensure measurement accuracy under conditions of fan-out capability.
Further, the power supply output module uses programmable precision power supply, the accurate voltage measurement module and precision
High accuracy number voltmeter, high accuracy number ammeter is respectively adopted in current measurement module.
Further, the AD conversion module uses serial interface or TCP/IP interfaces, for focusing on module with group
It is communicated, group's centralized processing module uses TCP/IP interfaces, group's centralized processing module to pass through the interface and trunk
Network connection sends data to energy measurement and calibration control platform, to meet large-scale multi-path laser device energy measurement
Distributed measurement, packet type control, data and the centralized management of order.
Further, the AD conversion module setting is near energy measurement probe, to shorten the transmission range of analog signal,
Loss of the analog signal in transmission process is reduced, the possibility that analog signal is disturbed in transmission process is reduced, can be improved
The accuracy of measurement.
The utility model has the beneficial effects that：
1, the utility model uses thin foil hollow resistance as heating carrier, for adding electric flux during electric calibration
It being loaded onto among energy measurement probe, this design is wound on energy measurement with traditional resistance wire and pops one's head in compared with around, due to
Heating carrier is evenly distributed so that the mode of heating of electric flux can with the mode of optical alignment close to, simultaneously as
Resistance is arranged within energy measurement probe, and load electric flux, which almost can all be popped one's head in by energy, to be absorbed rather than be dissipated to sky
Among gas, first cross-ventilation and variation of ambient temperature influence smaller, calibrated linear degree higher；With the side of facet coatings resistance
Method compares, and for this method without high temperature sintering, the requirement to technique and cost is relatively low.
2, it is provided with multichannel handover module in the energy electric calibration component of the utility model, is switched using multichannel and is switched
Switch between the energy measurement probe that do not go the same way, mould is measured to power supply output module, accurate voltage measurement module, precision current
Block carries out time-sharing multiplex, efficiently solves the contradiction between device operation efficiency and plant construction cost.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the energy electric calibration component of the utility model；
Fig. 3 is the energy measurement sonde configuration schematic diagram of the utility model；
Fig. 4 is the thin foil hollow electric resistance structure schematic diagram of the utility model；
Fig. 5 is the distribution map of thin foil hollow resistance and sensor in the embodiments of the present invention two.
In attached drawing：1- energy measurements probe, the even body of 11- absorbers, 12- heat guards, 13- heat, 14- sensors, 15- thin foils
Hollow resistance, 16- are heat sink, 2-AD conversion modules, 3- groups centralized processing module, 4- energy electric calibrations component, 41- power supplys export
Module, 42- accurate voltages measurement module, 43- precision currents measurement module, 44- multichannels handover module, 441- multiselects one are controlled
Circuit, the switch of 442- multiselects one, 5- core networks, 6- energy measurements and calibration control platform processed.
Specific implementation mode
In order to make those skilled in the art more fully understand the technical solution of the utility model, with reference to the utility model
Attached drawing carries out clear, complete description to the technical solution of the utility model, and based on the embodiment in the application, this field is general
Other similar embodiments that logical technical staff is obtained without making creative work, should all belong to the application
The range of protection.In addition, the direction word mentioned in following embodiment, such as "upper" "lower" " left side " " right side " etc. are only refer to the attached drawing
Direction, therefore, the direction word used be for illustrative and not limiting the utility model create.
Embodiment one：
As shown in Figure 1, a kind of energy measurement and calibration system for large scale laser instrument, including energy measurement probe 1,
AD conversion module 2, group's centralized processing module 3, energy electric calibration component 4, core network 5 and energy measurement and calibration control are flat
The data transmission interface of platform 6, the energy measurement probe 1 is sequentially connected AD conversion module 2, group's centralized processing module 3 and master
The electric calibration interface of dry network 5, the energy measurement probe 1 is connect by energy electric calibration component 4 with core network 5, described
Energy measurement and calibration control platform 6 are connect with core network, and group's centralized processing module 3 is for realizing system to layering
And the demand of grouping control, and be responsible for all data being transmitted to energy measurement and calibration control platform 6 by core network 5,
1 electrical connection of the energy electric calibration component 4 and energy measurement probe, for during calibration the energy set
Amount is loaded onto energy meter, and is accurately measured, and all data transmissions are controlled to core network 5 and by energy measurement and calibration
Platform 6 is unified to be received.Energy measurement and calibration console 6 send a command to each component in system by core network 5, meet system
Demand to data and order centralized management.
Group's centralized processing module 3 is set as multiple, each group centralized processing module 3 connects multiple energy and measures
Amount probe 1, in the present embodiment, group's centralized processing module 3 are provided with 3, each group focuses on module 3 and connects
Connect 8 energy measurements probe 1, as shown in Fig. 2, the energy electric calibration component 4 include the power supply output module 41 being set up in parallel,
Accurate voltage measurement module 42, precision current measurement module 43 and multichannel handover module 44, the power supply output module 41
Using programmable precision power supply, the high-precision number of degrees are respectively adopted in the accurate voltage measurement module 42 and precision current measurement module 43
Output and the function of measuring are decomposed, can not reduce power supply fan-out capability by word voltmeter, high accuracy number ammeter
Under the conditions of ensure measurement accuracy, the multichannel handover module 44 includes one switch 442 of one control circuit 441 of multiselect and multiselect,
Using multichannel handover module 44 to power supply output module 41, accurate voltage measurement module 42, precision current measurement module 43 into
Row control to the load of complete pairing energy in a calibration process and accurate measurement, while reaching the one set of instrument of multiplexing
Purpose using a set of energy electric calibration component 4 to 3 groups of energy measurements probe time-sharing multiplexes, can not reduce in the present embodiment
Device development totle drilling cost is reduced in the case of calibration efficiency.
As shown in Figure 3 and Figure 4, energy measurement probe 1 include the absorber 11 for being arranged in order bonding, heat guard 12,
The even body 13 of heat, sensor 14 and heat sink 16 are provided with thin foil hollow resistance 15 between the even body 13 of the heat and sensor 14, are used for
Among electric flux is loaded onto energy measurement probe 1 during electric calibration, the energy measurement is popped one's head in, and to be provided with one complete for 1 front end
Saturating glass is as shielding window (not shown), to reduce in measurement and calibration process air-flow and temperature change to surveying
Absorber 12 is done hanging design, reduces the loss of energy in measurement process by the influence of amount.In the present embodiment, the thin foil
The thickness of hollow resistance 15 is 0.3mm, and even 13 surface of body of heat, such setting and traditional electricity are pasted on by heat-conducting glue
Resistance silk is wound on around energy measurement probe and compares, since heating carrier is evenly distributed so that the mode of heating of electric flux can
In a manner of with optical alignment close to, simultaneously as resistance be arranged on energy measurement probe within, load electric flux
Almost can all be popped one's head in by energy absorb rather than among being dissipated to air, first cross-ventilation and variation of ambient temperature influence compared with
It is small, calibrated linear degree higher；Compared with the method for facet coatings resistance, this method without high temperature sintering, to technique and
The requirement of cost is relatively low.
The AD conversion module 2 uses serial interface or TCP/IP interfaces, is carried out for focusing on module 3 with group
Communication, it is preferable that use serial interface, the anti-electromagnetic interference capability of signal transmission can be improved, the group focuses on module 3
Using TCP/IP interfaces, group's centralized processing module 3 is connect by the interface with core network 5, and sending data to can measure
Amount and calibration control platform 6, to meet the distributed measurement of large-scale multi-path laser device energy measurement, packet type controls, data
And the centralized management of order.
The AD conversion module 2 uses Miniaturization Design, is disposed near energy measurement probe 1, to shorten
Energy measurement probe 1 is at a distance from sample circuit, to shorten the transmission range of analog signal, reduces analog signal in transmission process
In loss, reduce analog signal in transmission process be disturbed possibility, the accuracy of measurement can be improved.
The energy measurement process of the system is as follows：
When measurement, the energy measurement and calibration console 6 send measuring command, the absorber 11 of energy measurement probe 1
Temperature increases after absorbing the energy of laser pulse, through overheating even body 13 after transverse direction is homogenized into trip temperature, is visited by sensor 14
It measures and becomes voltage signal.Voltage signal is converted into digital signal and is transmitted to group's centralized processing module by AD conversion module 2
3, group focuses on module 3 and the data is passed through the network interface transfers of TCP/IP to core network 5, energy measurement and calibration
The upper computer software of console 6 can directly read adopt data waveform, can also export the algorithm according to configuration,
The energy value that coefficient is calculated, to obtain the energy of incident laser.
The calibration process of the system is as follows：
Calibration process is divided into the calibration of separate unit set and more set poll calibrations, wherein when separate unit set calibration, energy measurement and school
Quasi- console 6 sends calibration command, and power supply output module 41 starts, and starts to export a waveform set, while essence
Close voltage measurement module 42, precision current measurement module 43, which start, measures function, and the opening of multichannel handover module 44 needs to calibrate
The switch of light path energy meter, while start-up team's centralized processing module 3 and AD conversion module 2, the predetermined time, (multichannel was cut
Change the mold 44 opening time of block, which has to be larger than current output time and AD time of measuring) reach after, power supply exports mould
Block 41 is closed, accurate voltage measurement module 42 is closed after being transmitted back to measured value, and precision current measurement module 43 is transmitted back to measured value
After close, group focus on module 3 return this measurement data, multichannel handover module 44 switch close, in energy measurement
And in the host computer of console 6, after receiving data above, load electric flux and measured value is calculated, this calibration factor is obtained,
Calibration is completed.
When more set poll calibrations, calibration flow and the separate unit set calibration of single are no different, and multichannel handover module 44 is successively
Each way switch is opened in turn, is completed in the group after the calibration of all energy measurement probes 1, this time calibration flow terminates.
Embodiment two：
As shown in figure 5, the present embodiment part identical with embodiment one repeats no more, unlike：
The thin foil hollow resistance 15 by the way of being alternately arranged into the arrangement of a matrix array with sensor 14, this
The arrangement of sample can reach technique effect same as embodiment one.
The utility model is described in detail above, it is described above, only the preferred embodiment of the utility model and
, when the utility model practical range cannot be limited, i.e., all according to the made equivalent changes and modifications of the application range, it all should still belong to this
In utility model covering scope.
Claims (10)
1. a kind of energy measurement and calibration system for large scale laser instrument, which is characterized in that including energy measurement probe, AD
Conversion module, group's centralized processing module, energy electric calibration component, core network and energy measurement and calibration control platform, institute
The data transmission interface for stating energy measurement probe is sequentially connected AD conversion module, group's centralized processing module and core network, institute
The electric calibration interface for stating energy measurement probe is connect by energy electric calibration component with core network, the energy measurement and calibration
Control platform is connect with core network.
2. a kind of energy measurement and calibration system for large scale laser instrument according to claim 1, which is characterized in that
Group's centralized processing module is set as multiple, each group focuses on module and connects multiple energy measurement probes.
3. a kind of energy measurement and calibration system for large scale laser instrument according to claim 1, which is characterized in that
The energy measurement probe includes the absorber for being arranged in order bonding, heat guard, the even body of heat and sensor, the even body of heat and biography
Thin foil hollow resistance is provided between sensor.
4. a kind of energy measurement and calibration system for large scale laser instrument according to claim 3, which is characterized in that
The thin foil hollow resistance is pasted on the even body surface face of heat by heat-conducting glue.
5. a kind of energy measurement and calibration system for large scale laser instrument according to claim 3, which is characterized in that
The thin foil hollow resistance is alternately arranged into a matrix array with sensor.
6. a kind of energy measurement and calibration system for large scale laser instrument according to claim 3, which is characterized in that
The energy measurement probe distal end is provided with a full impregnated glass as shielding window.
7. a kind of energy measurement and calibration system for large scale laser instrument according to claim 1, which is characterized in that
The energy electric calibration component includes that the power supply output module, accurate voltage measurement module, precision current being set up in parallel measure mould
Block and multichannel handover module.
8. a kind of energy measurement and calibration system for large scale laser instrument according to claim 7, which is characterized in that
The power supply output module uses programmable precision power supply, the accurate voltage measurement module and precision current measurement module difference
Using high accuracy number voltmeter, high accuracy number ammeter.
9. a kind of energy measurement and calibration system for large scale laser instrument according to claim 1, which is characterized in that
The AD conversion module uses serial interface or TCP/IP interfaces, group's centralized processing module to use TCP/IP interfaces.
10. a kind of energy measurement and calibration system for large scale laser instrument according to claim 9, feature exist
In the AD conversion module setting is near energy measurement probe, to shorten the transmission range of analog signal.
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| CN201721776280.0U CN207751669U (en) | 2017-12-18 | 2017-12-18 | A kind of energy measurement and calibration system for large scale laser instrument |
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| CN201721776280.0U CN207751669U (en) | 2017-12-18 | 2017-12-18 | A kind of energy measurement and calibration system for large scale laser instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941475A (en) * | 2017-12-18 | 2018-04-20 | 中国工程物理研究院激光聚变研究中心 | A kind of energy measurement and calibration system for large scale laser instrument |
| CN109781256A (en) * | 2019-01-31 | 2019-05-21 | 中国科学院理化技术研究所 | A kind of measurement of laser energy method and device |
-
2017
- 2017-12-18 CN CN201721776280.0U patent/CN207751669U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107941475A (en) * | 2017-12-18 | 2018-04-20 | 中国工程物理研究院激光聚变研究中心 | A kind of energy measurement and calibration system for large scale laser instrument |
| CN109781256A (en) * | 2019-01-31 | 2019-05-21 | 中国科学院理化技术研究所 | A kind of measurement of laser energy method and device |
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