CN105739360A - Precise measurement apparatus for multichannel rotary transformer - Google Patents
Precise measurement apparatus for multichannel rotary transformer Download PDFInfo
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- CN105739360A CN105739360A CN201410753556.8A CN201410753556A CN105739360A CN 105739360 A CN105739360 A CN 105739360A CN 201410753556 A CN201410753556 A CN 201410753556A CN 105739360 A CN105739360 A CN 105739360A
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- rotary transformer
- decoding circuit
- signal
- microcontroller
- multichannel
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Abstract
Provided in the invention is a precise measurement apparatus for a multichannel rotary transformer. The precise measurement apparatus comprises a decoding circuit, a micro controller and an amplifying circuit, wherein the decoding circuit, the micro controller and the amplifying circuit are arranged on a same circuit board. A signal input terminal of the decoding circuit is connected with a rotary transformer; the decoding circuit is used for converting analog signals outputted by the rotary transformer into a digital signal and a coder signal and also uses the amplifying circuit to transmit an excitation signal to the rotary transformer; and a signal output terminal of the decoding circuit is connected with the micro controller. The micro controller is provided with a serial bus interface module for a serial protocol. The precise measurement apparatus having advantages of small size and convenient usage can be applied to various control systems flexibly, especially to nuclear island equipment.
Description
Technical field
The present invention relates to signals of rotating transformer switch technology field, particularly relate to the accuracy measuring device of a kind of multichannel revolver.
Background technology
Nuclear island key equipment automatic detection device, as pressure vessel checking machine tool hands carrys out the movement position of feedback device frequently with rotary transformer, the monitoring of the convenient attitude for device also is implemented accurately to control.But normal controller can not directly use the analog signals of rotary transformer, it is necessary to converts code device signal to, the accurately measurement of signals of rotating transformer and conversion are exactly part very crucial in a whole set of control system.
But the rotation based on VME (VersaModuleEurocard) bus that rotation external at present becomes transducer product such as North Atlantic Ocean company becomes conversion products, it is universal product, sophisticated functions can be realized, such as the signal reception etc. of selsyn, it is expensive, and function is numerous and diverse.And simply use its rotation varying signal when nuclear power station is actually used and change this individual event function.Other functions are not used.The volume of whole system is bigger, it is impossible to freely arrange in pairs or groups, and can not realize the memory function for the electric machine rotation number of turns.
Accordingly, it would be desirable to a kind of volume is little and is applicable to the accuracy measuring device of multichannel revolver of nuclear island.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide the accuracy measuring device of a kind of multichannel revolver, for solving the problem that in prior art, the function of accurately measurement and the reforming unit of signals of rotating transformer is extremely complex, relatively costly.
For achieving the above object and other relevant purposes, the present invention provides the accuracy measuring device of a kind of multichannel revolver, it includes the decoding circuit, microcontroller and the amplifying circuit that are placed on same circuit board, the signal input part of described decoding circuit is connected with rotary transformer, decoding circuit is for converting the analogue signal that rotary transformer exports to digital signal and code device signal, and excitation signal is transferred to rotary transformer by amplifying circuit by decoding circuit；The signal output part of described decoding circuit is connected with microcontroller, and described microcontroller is provided with the serial bus interface IP suitable in serial protocol.
Preferably, described microcontroller also has the memory module calculating and storing described rotary transformer rotating cycle.
Preferably, also including for controlling, with the external world, the communication hardware interface that computer is connected, described communication hardware interface is connected with described microcontroller.
Preferably, the accuracy measuring device of multiple described rotary transformers is connected on universal serial bus by the described serial interface module of self and realizes networking in parallel.
As mentioned above, the accuracy measuring device of the multichannel revolver of the present invention, have the advantages that decoding circuit and microcontroller are integrated by employing, both achieved and the analogue signal of rotary transformer had been converted to digital signal and code device signal, again can by multiple rotary transformer parallel connection networkings, volume of the present invention is little, easy to use, can be flexibly applied in the control system of all kinds of property, be particularly well-suited in Nuclear island equipment.
Accompanying drawing explanation
Fig. 1 is shown as the system block diagram of the accuracy measuring device of the multichannel revolver of the present invention.
Fig. 2 is shown as the schematic diagram of the accuracy measuring device parallel connection networking of the multichannel revolver of multiple present invention.
Element numbers explanation
1 rotary transformer
2 rotary transformer accuracy measuring device
21 decoding circuits
22 amplifying circuits
23 communication hardware interfaces
24 microcontrollers
25 serial bus interface IP
3 control computer
Detailed description of the invention
By particular specific embodiment, embodiments of the present invention being described below, those skilled in the art the content disclosed by this specification can understand other advantages and effect of the present invention easily.
Refer to Fig. 1 to Fig. 2.Notice, the structure of this specification institute accompanying drawings depicted, ratio, size etc., all only in order to coordinate the disclosed content of description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of the present invention, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, under not affecting effect that the present invention can be generated by and the purpose that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification cited as " on ", D score, "left", "right", " centre " and " one " etc. term, it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, changing under technology contents without essence, when being also considered as the enforceable category of the present invention.
As shown in Figure 1, the present invention provides the accuracy measuring device of a kind of multichannel revolver, it includes the decoding circuit 21, microcontroller 24 and the amplifying circuit 22 that are placed on same circuit board, the signal input part of decoding circuit 21 is connected with rotary transformer 1, decoding circuit 21 for converting digital signal and code device signal to by the analogue signal that rotary transformer exports, and excitation signal is transferred to rotary transformer 1 by amplifying circuit 22 by decoding circuit 21；The signal output part of decoding circuit 21 is connected with microcontroller 24, and microcontroller 24 is provided with the serial bus interface IP 25 suitable in serial protocol.The present invention adopts and decoding circuit and microcontroller is integrated, achieve the analogue signal conversion of rotary transformer, and the precision of rotary transformer is transferred to external equipment, and can by grid-connected for the serial of multiple rotary transformer accuracy measuring device 2, its volume is little, easy to use, special suitable in Nuclear island equipment.
For ease of record and use, above-mentioned microcontroller 24 also has the memory module calculating and storing rotary transformer 1 rotating cycle.Can record after rotary transformer re-powers by this memory module, its number of turns rotated to more accurate numerical value.
Present invention additionally comprises for controlling, with extraneous, the communication hardware interface 23 that computer 3 is connected, communication hardware interface 23 is connected with microcontroller 24.Above-mentioned decoding circuit 21 is for being converted into 16 position digital signals and code device signal by the analog signals that rotary transformer 1 exports, and wherein the digital signal of 16 is the position signalling of rotary transformer 1, will be conveyed to control computer after converted；Code device signal then can be transferred to fortune control controller.Decoding circuit 21 is main to be made up of rotation change decoding chip AD2S1210.
Above-mentioned microcontroller 24 will can access 16 position digital signals after the conversion of each device by universal serial bus, and can pass through serial line interface or network interface and be transferred to by the digital position signal of multichannel rotary transformer and control computer 3.Multiple rotary transformer accuracy measuring device 2 are connected on universal serial bus by the serial interface module 25 of self and realize networking in parallel；The universal serial bus that microcontroller 24 adopts is iic bus, can connect at most 255 modules, as shown in Figure 2.
Above-mentioned amplifying circuit 22 is for amplifying decoding circuit and above-mentioned decoding chip to the excitation signal of rotary transformer, and the frequency of excitation signal is adjusted by arranging of decoding circuit, and output voltage then needs, according to different types of rotary transformer requirement, to be adjusted.
Communication hardware interface 23 is made up of serial ports or network interface plug, and corresponding peripheral components is connected with microcontroller 24.Network interface or serial ports can be configured to by demand be connected with control computer.With the serial port protocol controlling the serial ports that is connected of computer and adopting standard, baud rate can by adjusting the programming of microcontroller, and network interface then can adopt ICP/IP protocol, and corresponding parameter completes also by the programming of microcontroller 24.
In sum, the accuracy measuring device of the multichannel revolver of the present invention, adopt and decoding circuit and microcontroller are integrated, achieve the analogue signal conversion of rotary transformer, and the precision of rotary transformer is transferred to external equipment, and can by grid-connected for the accuracy measuring device serial of multiple rotary transformers, its volume is little, easy to use, special suitable in Nuclear island equipment..So, the present invention effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment is illustrative principles of the invention and effect thereof only, not for the restriction present invention.Above-described embodiment all under the spirit and category of the present invention, can be modified or change by any those skilled in the art.Therefore, art has usually intellectual such as modifying without departing from all equivalences completed under disclosed spirit and technological thought or change, must be contained by the claim of the present invention.
Claims (4)
1. the accuracy measuring device of a multichannel revolver, it is characterized in that, including the decoding circuit (21) being placed on same circuit board, microcontroller (24) and amplifying circuit (22), the signal input part of described decoding circuit (21) is connected with rotary transformer (1), decoding circuit (21) for converting digital signal and code device signal to by the analogue signal that rotary transformer (1) exports, and excitation signal is transferred to rotary transformer (1) by amplifying circuit (22) by decoding circuit (1)；The signal output part of described decoding circuit (21) is connected with microcontroller (24), and described microcontroller (24) is provided with the serial bus interface IP (25) suitable in serial protocol.
2. the accuracy measuring device of multichannel revolver according to claim 1, it is characterised in that: described microcontroller (24) also has the memory module calculating and storing described rotary transformer rotating cycle.
3. the accuracy measuring device of multichannel revolver according to claim 1, it is characterized in that: also including for controlling, with the external world, the communication hardware interface (23) that computer (3) is connected, described communication hardware interface (23) is connected with described microcontroller (24).
4. the accuracy measuring device of multichannel revolver according to claim 1, it is characterised in that: multiple described rotary transformer accuracy measuring device (2) are connected on universal serial bus by the described serial interface module (25) of self and realize networking in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753556.8A CN105739360A (en) | 2014-12-10 | 2014-12-10 | Precise measurement apparatus for multichannel rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410753556.8A CN105739360A (en) | 2014-12-10 | 2014-12-10 | Precise measurement apparatus for multichannel rotary transformer |
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| Publication Number | Publication Date |
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| CN105739360A true CN105739360A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410753556.8A Pending CN105739360A (en) | 2014-12-10 | 2014-12-10 | Precise measurement apparatus for multichannel rotary transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827350A (en) * | 2018-07-03 | 2018-11-16 | 中国铁建重工集团有限公司 | A kind of CAN bus based more rotary transformer decoding apparatus |
| CN109828717A (en) * | 2019-01-31 | 2019-05-31 | 哈尔滨工业大学 | The parallel data acquisition circuit and automatic acquiring method of multiple rotary transformers |
| CN110165947A (en) * | 2018-02-13 | 2019-08-23 | 联合汽车电子有限公司 | Accuracy evaluation device, appraisal procedure and the assessment system of position detecting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165947A (en) * | 2018-02-13 | 2019-08-23 | 联合汽车电子有限公司 | Accuracy evaluation device, appraisal procedure and the assessment system of position detecting device |
| CN108827350A (en) * | 2018-07-03 | 2018-11-16 | 中国铁建重工集团有限公司 | A kind of CAN bus based more rotary transformer decoding apparatus |
| CN109828717A (en) * | 2019-01-31 | 2019-05-31 | 哈尔滨工业大学 | The parallel data acquisition circuit and automatic acquiring method of multiple rotary transformers |
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Application publication date: 20160706 |
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