CN101149474A - Episcotister with frequency and position synchronous function - Google Patents
Episcotister with frequency and position synchronous function Download PDFInfo
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- CN101149474A CN101149474A CNA2007100259603A CN200710025960A CN101149474A CN 101149474 A CN101149474 A CN 101149474A CN A2007100259603 A CNA2007100259603 A CN A2007100259603A CN 200710025960 A CN200710025960 A CN 200710025960A CN 101149474 A CN101149474 A CN 101149474A
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- chopper
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Abstract
This invention discloses a kind of chopper, which has the function of making the frequency and position synchronous. It is in the field of photoelectricity technology. Its intention is to provide a kind of chopper, which has the equipments like outside-linked TTL importing or exporting signal CCD and can synchronous operate at the time and the frequency. It also has the function of controlling position and rotates speed of servo-actuator. The technological points: the servo-actuator driver and the programmable director are connected by the control and feedback system and absolute position control system. The programmable director connects at least a BNC signal input port or a BNC signal output port that is made up of ring coaxial fitting. It has the function of synchronous operation at the time and the frequency with the equipments like importing or exporting triggering signal CCD. It can control the servo-actuator's position and rotating speed. It also has the function of position memory and origin regression etc.
Description
Technical field
The present invention relates to a kind of mechanical chopper, particularly a kind of chopper with frequency and position synchronous function.
Background technology
Chopper is in photo measure is used, and the light that continuous light source sends, is modulated into the light signal of alternation, amplifies and relevant detection so that carry out frequency-selecting after the light-to-current inversion.Chinese patent 86100557 discloses a kind of speed-adjustable light chopper, and it utilizes the combination of two simple nonlinear F/V converters and a subtracter, and the input of the chopper of realization speed-adjustable and the linearity between the output are got in touch.Chinese patent 200410093016.8 discloses a kind of transparent reversed choppers that is made of motor servo system, chopper wheel, frequency feedback and systems stabilisation, external interface and parts such as display system, power-supply system.But these mechanical choppers all can not carry out time synchronized to charge-coupled image sensor external devices such as (being CCD) output synchronous triggering signal, can not accept outer signals by the external device triggering synchronous; And do not possess accurate frequency control function and position control function, more do not have original point return and position memory function.Up to now, more there is not a kind of mechanical chopper that has above all functions simultaneously.Therefore, the range of application of existing machinery chopper is restricted.
Summary of the invention
The purpose of this invention is to provide a kind of chopper with frequency and position synchronous function, it not only can to have a charge-coupled image sensor of TTL signal I/O synchronous in time with the external world, and have and extraneous charge-coupled image sensor with the I/O of TTL signal carries out function synchronous on the frequency, and the function that servomotor is possessed position and rotating speed control.
Its technical scheme is: a kind of chopper with frequency and position synchronous function, comprise motor servo driver, servomotor, scrambler, chopper disk and Programmable Logic Controller, the bnc interface and the power supply that constitute by concentric cable snap ring shape joint, it is characterized in that: be connected with feedback system and absolute position control system by control between described motor servo driver input/output module and the Programmable Logic Controller input/output module, at least connect a BNC signal input interface that constitutes by concentric cable snap ring shape joint on the Programmable Logic Controller, perhaps at least one BNC signal output interface that constitutes by concentric cable snap ring shape joint.
Its technique effect is: because the synchronous triggering signal that the bnc interface that Programmable Logic Controller can accept to be made of concentric cable snap ring shape joint is imported, and according to program output control command and the pulse set, control by the control pair motor servo driver, make motor servo driver drive servomotor and drive the chopper disk rotation, the angle that the servomotor scrambler then turns over the servomotor that measures by feedback line feeds back to motor servo driver in real time.Therefore, after motor servo driver compares by the control signal to feedback signal and Programmable Logic Controller, can accurately control the position and the rotating speed of servomotor.
Simultaneously, because Programmable Logic Controller can be counted the frequency signal that the bnc interface that is made of concentric cable snap ring shape joint is imported, and according to the program output control command of setting and pulse to motor servo driver, make motor servo driver drive servomotor and drive the chopper disk rotation, therefore, the rotating speed that can make chopper disk and the frequency signal of the bnc interface input that is made of concentric cable snap ring shape joint reach the purpose of Frequency Synchronization.
In addition, because Programmable Logic Controller can be by the control motor servo driver, and then control servomotor, reach the purpose of control chopper disk position and rotating speed, therefore, according to the Programmable Logic Controller internal processes, can be by a bnc interface that constitutes by concentric cable snap ring shape joint, outwards output TTL synchronizing signal or frequency signal are realized the purpose of circuit such as outside phaselocked loop and chopper disk Frequency Synchronization.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is a kind of shape figure of mechanism of chopper disk;
Fig. 3 is the shape figure of mechanism of another chopper disk;
Fig. 4 is the shape figure of mechanism of another kind of chopper disk.
Embodiment
As shown in Figure 1, have the chopper of frequency and position synchronous function, the bnc interface, power supply and the switch that constitute by motor servo driver, servomotor, scrambler, chopper disk and Programmable Logic Controller, by concentric cable snap ring shape joint are formed.Motor servo driver 6 is the MR-J3-10A of Mitsubishi, L1, the L2 stube cable 8 of motor servo driver main circuit power joint CNP1, connect power supply by switch 22 by socket power 26, L11, the L21 stube cable 9 of motor servo driver control circuit power connection CNP2 connect power supply by switch 23 by socket power 26.Switching Power Supply 21 stube cables 27 connect power supply by switch 24 by socket power 26.Programmable Logic Controller 7 is the FX3U-32MT/ES of a Mitsubishi Programmable Logic Controller, and the required power supply of its internal control circuit connects power supply by switch 25 by socket power 26 by pin L, N stube cable 29.The input/output module of motor servo driver 6 inside is connected power supply by cable 10 with Switching Power Supply 21.
Servomotor 2 is by driving the motor power joint CNP3 that cable 4 connects motor servo driver 6, chopper disk 3 places on the output shaft of servomotor, 18 servomotor scramblers 1 are arranged on the back of servomotor 2, and scrambler 1 is connected with joint CN2 with the motor servo driver scrambler by cable 5.
Programmable Logic Controller input terminal X000 connects a BNC signal input interface 32 that is made of concentric cable snap ring shape joint.What BNC signal input interface 32 was imported can be the synchronous triggering signal of external unit such as CCD video equipment, is used to trigger Programmable Logic Controller; Also can be the frequency signal that is up to 100KHz, Programmable Logic Controller 7 is the signal high-speed counting to external world, carries out Frequency Synchronization.The center of requirement bnc interface 32 is input as the TTL signal of high level, and the TTL signal is input to the internal circuit of Programmable Logic Controller by resistance 31 and triode 30.Bnc interface 32 can compatible center input+5V to+24V high level signal.
Lead-out terminal Y001 connects a BNC signal input interface 33 that is made of concentric cable snap ring shape joint.BNC signal output interface 33 can be exported the synchronous triggering signal of Programmable Logic Controller, is used to trigger external unit; Can be the frequency signal that is up to 100KHz also, be used for carrying out Frequency Synchronization with circuit such as outside phaselocked loops.Be in series with in the follow-up equipment that requires BNC signal output interface 33 to connect voltage for+5V to+24V power supply.
The input/output signal of motor servo driver 6 is used to import the signal controlling motor servo driver 6 of external unit with joint CN1, and feedback loop output signal is to external unit simultaneously.
The 24V output pin of Switching Power Supply 21 connects input/output signal with the digital interface of the joint CN1 open collector power supply input pin OPC (being the pin 12 of CN1) with power supply input pin DICOM (being the pin 20 of CN1) and CN1.The digital interface that the 0V output pin of Switching Power Supply 21 connects CN1 is with common port pin DOCOM (being the pin 47 of CN1).
Two pins of reset switch 14 connect the reset pin RES (being the pin 19 of CN1) of CN1 and digital interface respectively with common port DOCOM (being the pin 47 of CN1), when the display screen on the motor servo driver 11 is reported to the police " ALARM ", connect reset switch after 50 seconds, motor servo driver will be reset.
What two pins of emergency stop switch 15 connected CN1 respectively promptly stops pin EMG (being the pin 42 of CN1) and digital interface with common port DOCOM (being the pin 47 of CN1), and emergency stop switch is in on-state during normal running, promptly keeps "on" position.In case accident occurs, disconnect emergency stop switch, motor servo driver quits work immediately.
Be connected with feedback system 41 and absolute position control system 42 by control between motor servo driver 6 input/output modules and the Programmable Logic Controller input/output module.
Control and feedback system 41 are by the common port pin LG in motor servo driver 6 input/output modules, scrambler Z phase pin OP, ready pin RD, train of impulses input pin PP, digital interface common port DOCOM, train of impulses input pin NP, remove pin CR respectively by the input/output signal usefulness joint CN1 of motor servo driver 6 and the 0V in Programmable Logic Controller 7 input/output modules, input end X003, X004, output terminal Y000, common port COM1, output terminal Y004, the pin correspondence of Y003 connects and composes.The input/output signal of motor servo driver 6 is promptly controlled the 0V pin that common port pin LG connects Programmable Logic Controller 7 with joint CN1 pin 34.Make the input/output module of motor servo driver 6 and the input/output module of Programmable Logic Controller 7 keep altogether like this; The pin 33 of CN1, promptly scrambler Z phase pin OP connects the input end X003 of Programmable Logic Controller, is used for the zero signal of scrambler 1 is input to Programmable Logic Controller 7; The pin 49 of CN1, promptly ready pin RD connects the input end X004 of Programmable Logic Controller, is used to export signal that motor servo driver 6 servo unlatchings can move to Programmable Logic Controller 7; The pin 10 of CN1, promptly train of impulses input pin PP connects the output terminal Y000 of Programmable Logic Controller, is used to receive the output pulse string of Programmable Logic Controller 7, and then control motor servo driver 6 drives servomotor 2 operations; The pin 46 of CN1, promptly digital interface connects the COM1 pin of Programmable Logic Controller with common port DOCOM, and the out-put supply that is used to keep motor servo driver 6 and Programmable Logic Controller 7 is altogether; The pin 35 of CN1, promptly train of impulses input pin NP connects the output terminal Y004 of Programmable Logic Controller 7, is used to receive the output pulse string of Programmable Logic Controller, and then the direction of control servomotor 2 operations; The pin 41 of CN1 is promptly removed the output terminal Y003 that pin NP connects Programmable Logic Controller 7, and when the output terminal Y003 of Programmable Logic Controller 7 exported rising edge of a pulse, motor servo driver 6 can be removed the delay pulse in the deviation counter; The input/output terminal of the LG of above CN1, OP, RD, PP, DOCOM, NP, CR pin and Programmable Logic Controller 7 need be connected with shielding line, and screen layer is connected to the shielding pin SD of CN1.
Absolute position control system 42 is by the output terminal Y005 in Programmable Logic Controller 7 input/output modules, Y006, Y007 is respectively by the input/output signal usefulness joint CN1 of motor servo driver 6 and the servo unlatching SON pin in motor servo driver 6 input/output modules, the ABSM pin, the ABSR pin is corresponding to be connected and by Programmable Logic Controller 7 input end X005, X006, X007 is respectively by the input/output signal usefulness joint CN1 of motor servo driver 6 and the ABSB0 pin in motor servo driver 6 input/output modules, the ABSB1 pin, ABST pin correspondence connects and composes.Output terminal Y005 in Programmable Logic Controller 7 input/output modules connects the servo unlatching SON pin (being pin 15) of CN1, the servo start signal of sending; The output terminal Y006 of Programmable Logic Controller 7 connects the ABSM pin (being pin 17) of CN1, sends absolute position control system abs mode signal; The output terminal Y007 of Programmable Logic Controller 7 connects the ABSR pin (being pin 18) of CN1, sends absolute position control system abs mode request signal; The input end X005 of Programmable Logic Controller 7 connects the ABSB0 pin (being pin 22) of CN1, receives absolute position low level (ABSB0) signal; The input end X006 of Programmable Logic Controller 7 connects the ABSB1 pin (being pin 23) of CN1, receives an absolute position high position (ABSB1) signal; The input end X007 of Programmable Logic Controller 7 connects the ABST pin (being pin 25) of CN1, receives the absolute position system and sends the data signal that finishes; Above connecting line is a shielding line, and screen layer meets the shielding pin SD of CN1.Battery 28 connects the battery joint CN4 of motor servo driver 6, guarantees the register continued power of motor servo driver 6 inside.This regulating device promptly constitutes the absolute position control system, thereby makes whole chopper system have the initial point memory function, and chopper is returned to the origin-location when guaranteeing each opening device.
The COM1 of Programmable Logic Controller 7, COM2 and V pin short circuit, the S/S of Programmable Logic Controller 7 and 24V pin short circuit.
Programmable Logic Controller input terminal X013 is connected with original point return switch 17, connect the original point return switch, Programmable Logic Controller promptly sends control command to motor servo driver, and motor servo driver drives servomotor drive chopper disk and rotates to the origin position of having set.
Programmable Logic Controller input terminal X011 is connected with reset switch 18, connects reset switch, and Programmable Logic Controller promptly sends control command and carries out zero clearing to the register of motor servo driver inside.
The motor servo driver inner parameter is made amendment and two kinds of equipment and the method set are: directly be connected to servomotor programmable device 12 above the motor servo driver 6, can make amendment and set the circuit parameter of motor servo driver inside by this programmable device, the parameter of revising or setting can show on the display screen 11 of motor servo driver in real time; The motor servo driver usb communication connects USB interface 38 with joint CN5 by the USB extended line, utilizes computer realization the motor servo driver inner parameter is made amendment and to set.
The program of Programmable Logic Controller inside made amendment with two kinds of equipment setting with method be: the programmable device 20 of Programmable Logic Controller is connected the peripherals special joint of Programmable Logic Controller by telecommunication cable 19, this programmable device can be made amendment and sets the program of Programmable Logic Controller inside, and shows on the display screen 13 of Programmable Logic Controller in real time; The communication expansion board FX3U-232BD of Programmable Logic Controller is connected with RS-232C interface 39, can make amendment to the program of Programmable Logic Controller inside and sets by computer realization.
These facility have original point return and position memory function.Can specify a location point of servomotor scrambler 1 as required arbitrarily is initial point, and the original point return switch of connecting on the Programmable Logic Controller 17 just can allow chopper disk arrive appointed positions in the time of appointment, promptly returns initial point.
Frame line in the accompanying drawing 1 is the expression line of control box, and the housing 40 direct ground connection of control box can strengthen shielding, reduces electromagnetic interference (EMI), the circuit that protection sets within it.
Complete machine is by being installed in socket 26 power supplies on the control box, the civil power of external 220V, 50Hz.
Fig. 2,3 and 4 is respectively the chopper disk of one group of different duty of the present invention and radius.Can use the chopper disk of different duty and radius as required flexibly, to select different dutycycles and to be in the light the time.
Claims (8)
1. chopper with frequency and position synchronous function, comprise motor servo driver, servomotor, scrambler, chopper disk and Programmable Logic Controller, the bnc interface and the power supply that constitute by concentric cable snap ring shape joint, it is characterized in that: be connected with feedback system (41) and absolute position control system (42) by control between described motor servo driver (6) input/output module and the Programmable Logic Controller input/output module, at least connect a BNC signal input interface (32) that constitutes by concentric cable snap ring shape joint on the Programmable Logic Controller, perhaps at least one BNC signal output interface (33) that constitutes by concentric cable snap ring shape joint.
2. a kind of chopper with frequency and position synchronous function according to claim 1 is characterized in that: be connected with emergency stop switch (15), reset switch (14), servomotor scrambler (1) and USB interface (38) on the described motor servo driver (6) respectively.
3. a kind of chopper with frequency and position synchronous function according to claim 1 is characterized in that: the programmable device (20) and the RS-232C interface (39) that are connected with starting switch (16), original point return switch (17), reset switch (18), Programmable Logic Controller on the described Programmable Logic Controller (7) respectively.
4. a kind of chopper according to claim 1 with frequency and position synchronous function, it is characterized in that: described motor servo driver (6) is connected with servomotor (2) by driving cable (4), motor servo driver (6) is connected with scrambler (1) by cable (5), and servomotor (2) is equipped with chopper disk (3).
5. a kind of chopper with frequency and position synchronous function according to claim 1 is characterized in that: described Programmable Logic Controller (7) input terminal X000, X001 are connected with the BNC signal input interface (32 and 36) that is made of concentric cable snap ring shape joint respectively.
6. a kind of chopper with frequency and position synchronous function according to claim 1 is characterized in that: described Programmable Logic Controller (7) lead-out terminal Y000, Y001 are connected with the BNC signal output interface (33 and 37) that is made of concentric cable snap ring shape joint respectively.
7. a kind of chopper with frequency and position synchronous function according to claim 1 is characterized in that: described control and feedback system (41) are by the common port pin LG in motor servo driver (6) input/output module, Z phase pin OP, ready pin RD, train of impulses input pin PP, digital interface common port DOCOM, train of impulses input pin NP, remove pin CR respectively with Programmable Logic Controller (7) input/output module in 0V, the input end X003 of Programmable Logic Controller, X004, Y000, COM1, Y004, the pin correspondence of Y003 connects and composes.
8. a kind of chopper with frequency and position synchronous function according to claim 1 is characterized in that: described absolute position control system (42) is by the output terminal Y005 in Programmable Logic Controller (7) input/output module, Y006, Y007 respectively with motor servo driver (6) input/output module in servo unlatching SON pin, the ABSM pin, the ABSR pin is corresponding to be connected and by Programmable Logic Controller 7 input end X005, X006, X007 respectively with the motor servo driver input/output module in the ABSB0 pin, the ABSB1 pin, ABST pin correspondence connects and composes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100259603A CN101149474A (en) | 2007-12-08 | 2007-12-08 | Episcotister with frequency and position synchronous function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100259603A CN101149474A (en) | 2007-12-08 | 2007-12-08 | Episcotister with frequency and position synchronous function |
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| Publication Number | Publication Date |
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| CN101149474A true CN101149474A (en) | 2008-03-26 |
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| CNA2007100259603A Pending CN101149474A (en) | 2007-12-08 | 2007-12-08 | Episcotister with frequency and position synchronous function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636478A (en) * | 2012-02-22 | 2012-08-15 | 江阴极光仪器科技有限公司 | Continuously adjustable laser attenuation device and continuousl adjustable method for confocal raman spectrometer |
-
2007
- 2007-12-08 CN CNA2007100259603A patent/CN101149474A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636478A (en) * | 2012-02-22 | 2012-08-15 | 江阴极光仪器科技有限公司 | Continuously adjustable laser attenuation device and continuousl adjustable method for confocal raman spectrometer |
| CN102636478B (en) * | 2012-02-22 | 2014-05-07 | 北京极光仪器科技有限公司 | Continuously adjustable laser attenuation device and continuousl adjustable method for confocal raman spectrometer |
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Open date: 20080326 |