CN205691730U - A kind of multichannel auxiliary reclay calibration equipment - Google Patents
A kind of multichannel auxiliary reclay calibration equipment Download PDFInfo
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- CN205691730U CN205691730U CN201620222512.7U CN201620222512U CN205691730U CN 205691730 U CN205691730 U CN 205691730U CN 201620222512 U CN201620222512 U CN 201620222512U CN 205691730 U CN205691730 U CN 205691730U
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Abstract
This utility model embodiment provides a kind of multichannel auxiliary reclay calibration equipment, including: control unit and the driver element being connected with control unit；The logic manage unit being connected with control unit, driver element is also connected with logic manage unit；The relay interface unit being connected with logic manage unit, relay interface unit connects auxiliary reclay；Control unit generates corresponding control instruction according to user's control instruction；Driver element generates corresponding measurement voltage signal according to control instruction and exports to logic manage unit；Measurement voltage signal is selected corresponding relay to be exported to auxiliary reclay by relay interface unit according to control instruction by logic manage unit；Information acquisition unit receives the dynamic voltage signal of driver element and gathers the relay measurement parameter of relay interface unit, and transmits dynamic voltage signal and the relay measurement parameter of driver element to control unit；Control unit processes after relay measures parameter and above-mentioned dynamic voltage signal and exports.
Description
Technical field
This utility model embodiment relates to distribution system service technique field, particularly relates to a kind of multichannel auxiliary reclay
Calibration equipment.
Background technology
Relay (English name: relay) is a kind of electric control unit part, is when the change of input quantity (energizing quantity) reaches
When regulation requires, make controlled volume that a kind of electrical equipment of predetermined Spline smoothing occurs in electric output circuit.It has control system
Unite (also known as input circuit) and by the interactive relationship between control system (also known as output loop).It is commonly used to the control of automatization
In circuit processed, it actually goes to control the one " switch automatically " of big electric current running with small area analysis.Therefore play in circuit certainly
The effects such as dynamic regulation, safeguard protection, change-over circuit.
Auxiliary reclay is parts most crucial in nuclear power station, thermal power station and other enterprise's electric control loops, and it receives
External signal, is changed the state of relay output point, thus the control turning on/off correspondence is returned by the actuating of relay/release
Road, it is achieved control and technologic demand.
In actual moving process, the short circuit of auxiliary reclay modal fault wired circle, relay contact adhesion, relay
Device contact cannot adhesive, reach operation voltage value and be failure to actuate, reach involution magnitude of voltage not involution etc., show as relay tripping or
Malfunction, causes distribution load to start or stop in a distant place, causes technologic logic to realize.
But, present enterprise is the most loaded down with trivial details because manually verifying relay step, and relay tolerance is huge in addition, and circuit tester is surveyed
Amount error is big, causes relay not verify or verifies the phenomenon wasted time and energy.
Utility model content
Solve the technical problem that and how to realize auxiliary reclay is carried out omnibearing verification by multichannel.
For defect of the prior art, this utility model embodiment provides a kind of multichannel auxiliary reclay verification dress
Put, it is characterised in that including: control unit and the driver element being connected with described control unit；
Also include the logic manage unit being connected with described control unit, described driver element also with described logic manage list
Unit connects；
Also including the relay interface unit being connected with described logic manage unit, described relay interface unit is connected to
A few auxiliary reclay；
Described control unit generates corresponding first control instruction and the second control instruction difference according to user's control instruction
Transmission is to described driver element and described logic manage unit；
Described driver element generates the output of corresponding measurement voltage signal to described logic according to described first control instruction
Administrative unit；
Described measurement voltage signal is selected corresponding relay according to described second control instruction by described logic manage unit
Device is exported to auxiliary reclay by described relay interface unit；
Also include information acquisition unit, described information acquisition unit respectively with described relay interface unit, driver element
Connect with described control unit；
Described information acquisition unit receives the dynamic voltage signal of described driver element and gathers described relay interface list
Parameter measured by the relay of unit, and dynamic voltage signal and the relay of described driver element are measured parameter transmission to described control
Unit processed；
Described control unit processes after described relay measures parameter and above-mentioned dynamic voltage signal and exports.
Alternatively, described measurement voltage signal is measurement voltage and the 5V voltage of dynamically change, the wherein survey of dynamically change
Amount voltage be range be relay rated voltage dynamically change voltage.
Alternatively, described information acquisition unit includes sampling resistor, amplifying circuit and constant-current source.
Alternatively, also include that temperature sensor, described temperature sensor are connected with described information acquisition unit
Described temperature sensor is for detecting the ambient temperature of auxiliary reclay and transmitting to described information acquisition unit.
Alternatively, described relay measurement parameter includes: actuating of relay magnitude of voltage, relay return voltage value, relay
D.C. resistance after device coil D.C. resistance, normally closed some D.C. resistance and normally opened Guan Bi.
Alternatively, alarm unit is also included；Described alarm unit is connected with described control unit；
Described control unit processes described relay and measures parameter and described dynamic voltage signal and generate alarm letter
Number output is to described alarm unit, and described alarm unit is according to described alarm signal alarm.
Alternatively, protected location is also included；Described protected location respectively with described relay interface unit and described control
Unit connects；
Described relay interface unit obtains the short-circuit signal of device for checking electric relay, and transmits to described control unit；
Described control unit stops driver element output test voltage signal according to described short-circuit signal, and is carried by warning
Show that unit carries out sound and light alarm prompting, until short trouble releases.Alternatively, described alarm unit be buzzer and/or
Display lamp.
Alternatively, also include that communication unit, described communication unit are connected with described control unit；
The described communication unit described relay after described control unit being processed measures parameter and described dynamic electric
Pressure signal transmits to host computer.
Alternatively, described host computer is PC；
The described PC described relay after showing the process of described control unit measures parameter and described dynamic electric voltage letter
Number；
Described PC is for generating user's control instruction according to user command and transmitting to described control unit.
As shown from the above technical solution, the multichannel that this utility model embodiment that this utility model embodiment provides provides
Auxiliary reclay calibration equipment includes that power supply unit, singlechip microprocessor, driver element, measured relay interface and sampling are single
Unit, alarm unit, logic manage unit, this utility model can select the logical of relay to be verified according to liquid crystal display screen prompting
Road, the omnibearing DATA REASONING of the multiple auxiliary reclay of one-key operation, fill up on the market without quickly and easily automatic check meter
Blank, greatly facilitate maintainer preventive inspection auxiliary reclay, investigation auxiliary reclay fault, improve work effect
Rate, shortens maintenance duration.This instrument can be applicable to the auxiliary reclay verification of any model, specification, and relative alarm value can be led to
Cross amendment Single Chip Microcomputer (SCM) program and host computer alarming value realizes.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing work one used simply is introduced in description of the prior art, it should be apparent that, the accompanying drawing in describing below is
Embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of multichannel auxiliary reclay calibration equipment structural representation in one embodiment of this utility model；
Fig. 2 is a kind of multichannel auxiliary reclay calibration equipment structural representation in one embodiment of this utility model.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Based on the enforcement in this utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into
The scope of this utility model protection.
As it is shown in figure 1, this utility model embodiment provides a kind of multichannel auxiliary reclay calibration equipment, including: control
Unit and the driver element being connected with control unit；Also including the logic manage unit being connected with control unit, driver element is also
It is connected with logic manage unit；Also including the relay interface unit being connected with logic manage unit, relay interface unit is even
Connect at least one auxiliary reclay；Control unit generates corresponding first control instruction and second according to user's control instruction and controls
Instruction is transmitted separately to driver element and logic manage unit；Driver element generates according to the first control instruction and measures electricity accordingly
Pressure signal exports to logic manage unit；Measurement voltage signal is selected corresponding according to the second control instruction by logic manage unit
Relay is exported to auxiliary reclay by relay interface unit；Also including information acquisition unit, information acquisition unit is respectively
It is connected with relay interface unit, driver element and control unit；Information acquisition unit receives the dynamic electric voltage letter of driver element
Number and gather the relay of relay interface unit and measure parameter, and the dynamic voltage signal of driver element and relay are measured
Parameter is transmitted to control unit；Control unit processes after relay measures parameter and above-mentioned dynamic voltage signal and exports.The most right
The auxiliary reclay calibration equipment that this utility model provides launches detailed description.
In this utility model, control device and be preferably Micro-processor MCV, preferably single-chip microcomputer.Control device and receive use
The control instruction that family sends, sends step-up/down signal to driver element, and selects to logic manage unit sendaisle and adopt
Sample channel selecting signal.Driver element receives the driving signal that singlechip microprocessor receives and sends, and carries out boosting or blood pressure lowering, it is simple to
Or drive measured relay action release.Driver element includes precision resistance and transistor amplifier.Driver element exports
Measure voltage be range be relay rated voltage dynamically change voltage.Such as, 0V-120V.
In this utility model, information acquisition unit includes sampling resistor and amplifying circuit.Information acquisition unit receives and drives
Parameter measured by the relay of the dynamic voltage signal of moving cell and collection relay interface unit, and relay is measured parameter and included:
Actuating of relay magnitude of voltage, relay return voltage value, relay coil D.C. resistance, normally closed some D.C. resistance and normally opened point
D.C. resistance after Guan Bi.As in figure 2 it is shown, this multichannel auxiliary reclay calibration equipment also includes temperature sensor, temperature passes
Sensor is connected with information acquisition unit；Temperature sensor is for detecting the ambient temperature of auxiliary reclay and transmitting to information gathering
Unit.
In this utility model, as in figure 2 it is shown, this multichannel auxiliary reclay calibration equipment also includes protected location；Protect
Protect unit to be connected with control unit with relay interface unit respectively；Obtained by relay interface unit relay interface unit and continue
The short-circuit signal of electrical equipment calibration equipment, and transmit to control unit；Control unit stops driver element output according to short-circuit signal
Test voltage signal, and carry out sound and light alarm prompting by alarm unit, until short trouble releases.Instrument there may be
The risk of short circuit, therefore arranges protection circuit in relay interface unit, and protection point has been connected to protected location, and protection is single
Unit is directly connected with MCU single-chip microcomputer.Once there are short-circuit conditions, MCU single-chip microcomputer output signal immediately, stop driver element output electricity
Pressure.
As in figure 2 it is shown, this multichannel auxiliary reclay calibration equipment also includes alarm unit；Alarm unit with
Control unit connects；Control unit processes relay and measures parameter and dynamic voltage signal and generate the output of alarm signal extremely
Alarm unit, alarm unit is according to alarm signal alarm.After relay is all completed, single-chip microcomputer is micro-
Processor alarm unit sends low level pulse signal and completes verification with prompting user.Alarm unit is buzzer
And/or display lamp.Alarm unit receives the low level pulse signal that singlechip microprocessor sends, and sound buzzing report subsequently
Warn and light display lamp, remind user to verify complete.
As in figure 2 it is shown, this multichannel auxiliary reclay calibration equipment the most also includes communication unit, communication unit is single with control
Unit connects；Communication unit relay after control unit being processed measures parameter and dynamic voltage signal transmission to upper
Machine.Host computer is preferably PC；PC is for showing that the relay after control unit process measures parameter and dynamic voltage signal.Upper
After machine receives the check results that communication unit transmission comes, shown various in the frame that each auxiliary reclay of host computer is corresponding
Verification data, and underproof relay red status light is reminded.Host computer arranges serial communication port and is correlated with
After parameter, click on and open serial ports, the data that single-chip microprocessor MCU is sent here by communication unit can be received in good time.Host computer interface is led to
Cross prompting and be used for selecting relay passage to be measured, to be verified after, can demonstrate that selected relay to be measured owns intuitively
Parameter, and judge that each parameter is the most qualified by the alarm threshold value set, and defective relay passage is entered with state red light
Row display, qualified is green light.
As in figure 2 it is shown, the multichannel auxiliary reclay that this utility model provides also include being connected with communication unit man-machine
Interactive unit, man-machine interaction unit includes button, toggle switch, liquid crystal display.Man-machine interaction unit is used for pointing out user to select
Select relay passage, and show the channel number that user selects in good time, receive singlechip microprocessor and send the verification data of coming
After, shown on a liquid crystal display, simultaneously by serial ports or wireless module, verification data are uploaded in host computer in addition
Display, and judge whether qualified.
This multichannel auxiliary reclay calibration equipment the most also includes that power supply unit is respectively singlechip microprocessor, communication unit
Unit and alarm unit, driver element provide 5V power supply, and power supply unit also provides the 5V's of precision for singlechip microprocessor
Sampling power supply, power supply unit is also the driving power supply of relay rated voltage for driver element offer range, such as 120V, power supply
Unit also provides working power for measured relay interface and sampling unit.Power supply unit uses transformator and power module.
The work process of this multichannel auxiliary reclay calibration equipment is such that when needing to enter multiple auxiliary reclays
During row verification, upper computer software first should be installed on PC；After tester powers on, liquid crystal display screen prompting selects relay passage to be measured, uses
Family selects relay passage to be measured by toggle switch, and the passage of selection shows over the display in real time, and inserts relay to be measured
Pressing ACK button after device, singlechip microprocessor sends signal to logic manage unit and measured relay interface unit, surveys
Measure coil resistance and the normally-closed contact D.C. resistance of each relay, and show；After being measured, singlechip microprocessor is to driving
Unit sends and drives signal, and system is boosted；When after measured relay energized action, stop boosting, measure the dynamic of now relay
Make the contact DC resistance after magnitude of voltage and normally opened some Guan Bi, and show；Singlechip microprocessor is sent out to driver element afterwards
Send driving signal, system blood pressure lowering；When, after measured relay dead electricity involution, stopping blood pressure lowering, measure the return voltage of now relay
Value；Singlechip microprocessor passes through serial ports or wireless module afterwards, sends the verification data of each measured relay to host computer,
And shown at host computer；Host computer receives after singlechip microprocessor sends the check results data come, and shows respectively
Showing in the data frame of each relay to be measured, to underproof relay, host computer is shown by red status light.It
Rear system recovery original state, completes the measuring task of present lot relay.During measurement, need to stop measuring or sending out
During the existing state of emergency, urgent SR can be pressed and restPose.This instrument can be applicable in any model, specification
Between relay checking, relative alarm value can by amendment Single Chip Microcomputer (SCM) program and host computer alarming value realize.
In sum, a kind of multichannel auxiliary reclay calibration equipment that this utility model embodiment provides includes that power supply is single
Unit, singlechip microprocessor, driver element, measured relay interface and sampling unit, alarm unit, logic manage list
Unit.This utility model can select the passage of relay to be verified according to liquid crystal display screen prompting, and the multiple auxiliary reclay of one-key operation is complete
The DATA REASONING in orientation, has filled up the blank on the market without quickly and easily automatic check meter, has greatly facilitated maintainer pre-
Anti-property checks auxiliary reclay, investigation auxiliary reclay fault, improves work efficiency, shortens maintenance duration.This instrument can
Being applied to the auxiliary reclay verification of various model, specification, relative alarm value can be by amendment Single Chip Microcomputer (SCM) program and host computer report
Alert value realizes.
Those skilled in the art are it should be appreciated that embodiments herein can be provided as method, system or computer program
Product.Therefore, the reality in terms of the application can use complete hardware embodiment, complete software implementation or combine software and hardware
Execute the form of example.And, the application can use at one or more computers wherein including computer usable program code
The upper computer program product implemented of usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.)
The form of product.
The application is with reference to method, equipment (system) and the flow process of computer program according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that can the most first-class by computer program instructions flowchart and/or block diagram
Flow process in journey and/or square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
Instruction arrives the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce
A raw machine so that the instruction performed by the processor of computer or other programmable data processing device is produced for real
The device of the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame now.
These computer program instructions may be alternatively stored in and computer or other programmable data processing device can be guided with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in this computer-readable memory produces and includes referring to
Make the manufacture of device, this command device realize at one flow process of flow chart or multiple flow process and/or one square frame of block diagram or
The function specified in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing device so that at meter
Perform sequence of operations step on calculation machine or other programmable devices to produce computer implemented process, thus at computer or
The instruction performed on other programmable devices provides for realizing at one flow process of flow chart or multiple flow process and/or block diagram one
The step of the function specified in individual square frame or multiple square frame.
It should be noted that in this article, the relational terms of such as first and second or the like is used merely to a reality
Body or operation separate with another entity or operating space, and deposit between not necessarily requiring or imply these entities or operating
Relation or order in any this reality.And, term " includes ", " comprising " or its any other variant are intended to
Comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include that those are wanted
Element, but also include other key elements being not expressly set out, or also include for this process, method, article or equipment
Intrinsic key element.In the case of there is no more restriction, statement " including ... " key element limited, it is not excluded that
Including process, method, article or the equipment of described key element there is also other identical element.Term " on ", D score etc. refers to
The orientation shown or position relationship for based on orientation shown in the drawings or position relationship, be for only for ease of description this utility model and
Simplify and describe rather than indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration
And operation, therefore it is not intended that to restriction of the present utility model.Unless otherwise clearly defined and limited, term " install ",
" be connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or connect integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can
To be the connection of two element internals.For the ordinary skill in the art, can understand as the case may be above-mentioned
Term concrete meaning in this utility model.
In description of the present utility model, illustrate a large amount of detail.Although it is understood that, of the present utility model
Embodiment can be put into practice in the case of not having these details.In some instances, be not shown specifically known method,
Structure and technology, in order to do not obscure the understanding of this description.Similarly, it will be appreciated that open in order to simplify this utility model
And help to understand in each utility model aspect one or more, above, exemplary embodiment of the present utility model is retouched
In stating, each feature of the present utility model is grouped together in single embodiment, figure or descriptions thereof sometimes.But,
The method of the disclosure should not explained in reflecting an intention that this utility model the most required for protection requires that ratio is in each power
The more feature of feature that profit is expressly recited in requiring.More precisely, as the following claims reflect, practical new
Type aspect is all features less than single embodiment disclosed above.Therefore, it then follows the claim of detailed description of the invention
Book is thus expressly incorporated in this detailed description of the invention, and the most each claim itself is as independent enforcement of the present utility model
Example.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, rather than it is limited
System；Although being described in detail this utility model with reference to foregoing embodiments, those of ordinary skill in the art should
Understand: the technical scheme described in foregoing embodiments still can be modified by it, or to the most some or all of
Technical characteristic carries out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from this practicality new
The scope of type each embodiment technical scheme, it all should be contained in the middle of the scope of claim of the present utility model and description.
Claims (10)
1. a multichannel auxiliary reclay calibration equipment, it is characterised in that including: control unit and with described control unit even
The driver element connect；
Also including the logic manage unit being connected with described control unit, described driver element is also with described logic manage unit even
Connect；
Also including the relay interface unit being connected with described logic manage unit, described relay interface unit connects at least one
Individual auxiliary reclay；
Described control unit generates corresponding first control instruction according to user's control instruction and the second control instruction is transmitted respectively
To described driver element and described logic manage unit；
Described driver element generates the output of corresponding measurement voltage signal to described logic manage according to described first control instruction
Unit；
The described measurement voltage signal corresponding relay of selection is led to by described logic manage unit according to described second control instruction
Cross described relay interface unit to export to auxiliary reclay；
Also include information acquisition unit, described information acquisition unit respectively with described relay interface unit, driver element and institute
State control unit to connect；
Described information acquisition unit receives the dynamic voltage signal of described driver element and gathers described relay interface unit
Parameter measured by relay, and by single to the most described control to dynamic voltage signal and the relay measurement parameter transmission of described driver element
Unit；
Described control unit processes after described relay measures parameter and above-mentioned dynamic voltage signal and exports.
Multichannel auxiliary reclay calibration equipment the most according to claim 1, it is characterised in that described measurement voltage signal
Measurement voltage for dynamically change.
Multichannel auxiliary reclay calibration equipment the most according to claim 1, it is characterised in that described information acquisition unit
Including sampling resistor, amplifying circuit and constant-current source.
Multichannel auxiliary reclay calibration equipment the most according to claim 1, it is characterised in that also include temperature sensing
Device, described temperature sensor is connected with described information acquisition unit
Described temperature sensor is for detecting the ambient temperature of auxiliary reclay and transmitting to described information acquisition unit.
Multichannel auxiliary reclay calibration equipment the most according to claim 1, it is characterised in that ginseng measured by described relay
Number include: actuating of relay magnitude of voltage, relay return voltage value, relay coil D.C. resistance, normally closed some D.C. resistance and
D.C. resistance after normally opened Guan Bi.
Multichannel auxiliary reclay calibration equipment the most according to claim 1, it is characterised in that also include alarm list
Unit；Described alarm unit is connected with described control unit；
Described control unit processes described relay and measures parameter and described dynamic voltage signal and to generate alarm signal defeated
Going out to described alarm unit, described alarm unit is according to described alarm signal alarm.
Multichannel auxiliary reclay calibration equipment the most according to claim 6, it is characterised in that also include protected location；
Described protected location is connected with described control unit with described relay interface unit respectively；
Described relay interface unit obtains the short-circuit signal of device for checking electric relay, and transmits to described control unit；
Described control unit stops driver element output test voltage signal according to described short-circuit signal, and by alarm list
Unit carries out sound and light alarm prompting, until short trouble releases.
Multichannel auxiliary reclay calibration equipment the most according to claim 6, it is characterised in that described alarm unit
For buzzer and/or display lamp.
9. according to the multichannel auxiliary reclay calibration equipment described in claim 1-8 any one, it is characterised in that also include
Communication unit, described communication unit is connected with described control unit；
The described communication unit described relay after described control unit being processed measures parameter and described dynamic electric voltage letter
Number transmission to host computer and/or liquid crystal display screen.
Multichannel auxiliary reclay calibration equipment the most according to claim 9, it is characterised in that described host computer is PC；
Described PC is for showing that the described relay after the process of described control unit measures parameter and described dynamic voltage signal；
Described PC is for generating user's control instruction according to user command and transmitting to described control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222512.7U CN205691730U (en) | 2016-03-22 | 2016-03-22 | A kind of multichannel auxiliary reclay calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620222512.7U CN205691730U (en) | 2016-03-22 | 2016-03-22 | A kind of multichannel auxiliary reclay calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205691730U true CN205691730U (en) | 2016-11-16 |
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|---|---|---|---|
| CN201620222512.7U Active CN205691730U (en) | 2016-03-22 | 2016-03-22 | A kind of multichannel auxiliary reclay calibration equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606999A (en) * | 2016-03-22 | 2016-05-25 | 张静瑜 | Multichannel intermediate relay verification apparatus |
-
2016
- 2016-03-22 CN CN201620222512.7U patent/CN205691730U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606999A (en) * | 2016-03-22 | 2016-05-25 | 张静瑜 | Multichannel intermediate relay verification apparatus |
| CN105606999B (en) * | 2016-03-22 | 2019-04-19 | 张静瑜 | A kind of multichannel intermediate relay calibration equipment |
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Effective date of registration: 20170809 Address after: Jiaxing City, Zhejiang province 314000 East Gate Industrial Park, Nanhu District Furun Road East Room 240 South Ring Road Patentee after: Jiaxing Newcourt Trading Co. Ltd. Address before: 730913 Gansu province Baiyin Pingchuan District Xingping Road No. 15 Building 2 unit 102 room Patentee before: Zhang Jingyu |