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Chapter 2 

– System Overview 

10

 

 

MS-75

 

S

TANDARD 

O

BJECTIVE 

L

ENS

 

If your A-TAKT V-7HS was equipped with the MS-75 objective lens, it is a 75mm f/2.8 MacroSpectar

®

 

lens that focuses from 1:4 magnification 

(at 14” from the target) to infinity.  This feature allows the 

instrument to be focused at different distances from the sample providing the ability to change the 
measured spot size.  The further from the sample, the larger the spot size.

 

 

 

 

Figure 4 - MS-75 objective lens.

 

 

I

NSTALLING AND 

/

 

R

EMOVING THE 

S

TANDARD 

L

ENS

 

The standard objective lens is installed by aligning the lens 

thread with the instrument’s lens mount 

thread and rotating clockwise while grasping the rubber ring toward the rear of the lens (see 

Figure 4

)

The thread should offer minimum resistance during installation. 

Full details including spot size versus working distance for all available lenses for MS-75, please refer to 
the table at the end of this manual. 

 

 

 

 

 

 

 

 

Remove Lens 

Focus ring 

Install Lens 

Grasp here to install or 
remove lens. 

Содержание PHOTO RESEARCH A-TAKT V-7HS

Страница 1: ...A TAKT V 7HS User Manual PHOTO RESEARCH INC 7279 William Barry Blvd North Syracuse NY 13212 3349 Phone 315 701 0678 FAX 315 701 067 9 Email sales pr photoresearch com URL www photoresearch com...

Страница 2: ......

Страница 3: ...nt contains proprietary information that is protected by copyright All rights are reserved worldwide No part of this document may be reproduced photographically electronically or by any other means wi...

Страница 4: ...ugh Friday except legal holidays to aid in technical support Call 315 701 0678 FAX 315 701 0679 or e mail service pr photoresearch com for instrument repair or calibration support pr photoresearch com...

Страница 5: ...Objective Lens 11 Chapter 3 Theory of Operation 12 Chapter 4 Basic Setup Procedures 17 Introduction 17 Power up 17 Connectivity 17 USB 17 RS232 17 CCD Viewing Camera 17 Target Alignment and Focus 17 C...

Страница 6: ...f string szDueDate 27 Int32 prDeviceSerialNumber ref string szSerialNumber 27 Int32 prDeviceFirmwareVersion ref string szFirmwareVersion 27 Int32 prDeviceUnits UnitsType units 27 Int32 prDeviceSpeed S...

Страница 7: ...Documentation 30 void PR6xxComm CommBase prDeviceClose 30 Int32 PR6xxComm CommBase prDeviceEnableCorrelationTable bool bTurnOn 30 Int32 PR6xxComm CommBase prDeviceExposure int mSecs 31 Int32 PR6xxComm...

Страница 8: ...e prDeviceTaktTable int Takt1 int Takt2 int Takt3 int Takt4 36 Int32 PR6xxComm CommBase prDeviceUnits UnitsType units 36 Int32 PR6xxComm CommBase prDeviceUserCorrelationTable string table ref double b...

Страница 9: ...MS 75 OBJECTIVE LENS 10 FIGURE 5 SPECTRUM MEASURED BY THE V 7HS 12 FIGURE 6 V 7HS SPECTROMETER 13 FIGURE 7 V 7HS BLOCK DIAGRAM 13 FIGURE 8 CIE 1931 TRISTIMULUS FUNCTIONS 15 FIGURE 9 CD DIRECTORY 18 F...

Страница 10: ...the sample under test in the center of which is a black spot the sampling aperture The black spot is the entrance to the optical system and unambiguously represents the precise area being sampled The...

Страница 11: ...Chapter 2 System Overview 7...

Страница 12: ...Chapter 2 System Overview 8 Chapter 2 SYSTEM OVERVIEW FIGURE 1 A TAKT V 7HS SIDE VIEW FIGURE 2 I O PANEL ENLARGEMENT RS232 CONNECTOR AC Adaptor Receptacle USB Connector RS232 Connector CCD Camera I F...

Страница 13: ...ter 3 6 ft 1 83 m RJ 12 cable Please contact factory for custom RJ 12 cable lengths MINI USB 1 1 CONNECTOR The A TAKT is equipped with a Mini B USB connector providing remote communication Figure 3 Mi...

Страница 14: ...he sample the larger the spot size Figure 4 MS 75 objective lens INSTALLING AND REMOVING THE STANDARD LENS The standard objective lens is installed by aligning the lens thread with the instrument s le...

Страница 15: ...re 4 turn the lens counter clock wise until the lens separates from the lens mount INSTALLING THE OBJECTIVE LENS 1 Grasping the rear rubber ring see Figure 4 turn the lens clock wise until the lens se...

Страница 16: ...only the wavelength s of the laser will be refracted FIGURE 5 SPECTRUM MEASURED BY THE V 7HS The measurement wavelength range is 380 nanometers nm violet to 780 nm deep red the visible band of the el...

Страница 17: ...The wavelength calibration is performed using a helium spectral line source The line source provides known spectral emission lines that the software uses to map the dispersion of the grating to the m...

Страница 18: ...Chapter 3 Theory of Operation 14...

Страница 19: ...antities are accurately reported Lastly a scaling factor photometric factor is applied ensuring the proper photometric levels such as luminance or illuminance are displayed Calculations The corrected...

Страница 20: ...presents the red component Y is the green component and Z is the blue component Y also serves as the photometric value when using the standard MS 75 lens Y gives candelas meter the SI unit for luminan...

Страница 21: ...ce to the PC using a mini B type USB Cable RS232 1 Using the RJ 12 cable and RJ 12 to DB9 converter connect the V 7HS to a suitable DB 9 RS232 port on your PC CCD Viewing Camera 1 Use a Type B USB cab...

Страница 22: ...MWARE UPDATER Contains FWInstaller msi firmware updater software installer PRICAMERAVIEWER Contains ATaktCameraSetup msi Camera Viewer software installer USB DRIVER Contains PRI USBInst msi USB driver...

Страница 23: ...oftware 19 FIGURE 10 SDK FOLDER CONTENTS SDK FOLDER CONTENT DESCRIPTIONS cppClient C sample console app to call SDK functions PR6xxComm SDK library DLL PR6xxCommClient C sample console app to call SDK...

Страница 24: ...n the CD INSTALLING THE UPDATER 1 Run the file FWInstaller msi located on the CD in the Firmware Updater folder If you encounter a User Account Control message click on Yes 2 Follow the on screen prom...

Страница 25: ...CD and choose the file with the hex extension For example PR6xxHW 314 PR74XHS hex WARNING DO NOT INSTALL THIS FIRMWARE ON ANY OTHER PHOTO RESEARCH MODEL E G PR 740 DOING SO WILL DISABLE THE INSTRUMENT...

Страница 26: ...message click on Yes run the Installer 2 Click next through the following screens to complete the installation RUNNING THE CAMERA VIEWER 1 Make sure that the A TAKT camera is connected to the PC by a...

Страница 27: ...CREEN Note the image of the measuring aperture in the center of the field of view Adjusting the Image 1 Click on Camera Config to bring up the following screen FIGURE 12 CAMERA VIEWER CONTROL PANEL 2...

Страница 28: ...oes not have a PR USB driver installed it must be installed for successful communication with the A TAKT V 7HS from application using the SDK The driver assigns a COM port to the instrument when conne...

Страница 29: ...he V 7HS use the following steps to determine the COM port assigned by the driver to your V 7HS 1 Click on Start 2 Right click on Computer 3 Click on Manage 4 Click on Device Manager 5 Click on Ports...

Страница 30: ...rorCodes Success 0 DriverErrorCodes BadArguments 5001 DriverErrorCodes WriteTimeout 5002 DriverErrorCodes ReadTimeout 5003 DriverErrorCodes BadData 5004 DriverErrorCodes BadUploadFile 6001 DriverError...

Страница 31: ...FirmwareVersion prDeviceFirmwareVersion Gets the firmware version of the currently opened PRI spectral device Int32 prDeviceUnits UnitsType units Sets returned measurement units to either metric or im...

Страница 32: ...ring viewerPath Launch instrument viewing camera application Int32 prDeviceStopCamera Kill instrument viewing camera application int prUpdateFirmware string FWFile Load new firmware image on to the in...

Страница 33: ...re upload file name UnknownFirmware Firmware update method detected unsupported firmware version on the instrument FileNotFound Firmware update method could not load the specified firmware upload file...

Страница 34: ...k light EndPhases Used as phase count enum PR6xxComm CommBase UnitsType Selectors for set measurement units method Enumerator ImperialUnits selects imperial units MetricUnits selects metric units MEMB...

Страница 35: ...32 PR6xxComm CommBase prDeviceGetFrequency ref Int16 synchFrequency prDeviceGetFrequency Retrieves the synch frequency detected by the last luminance measurement Returns A Int32 instrument operation r...

Страница 36: ...bration Parameters szDueDate Instrument calibration due date time string Returns A Int32 instrument operation result code 0 success negative number is error code Int32 PR6xxComm CommBase prDeviceLastM...

Страница 37: ...y to detect the required frequency Returns A Int32 instrument operation result code 0 success negative number is error code Int32 PR6xxComm CommBase prDeviceMeasure ref double brightness ref double ci...

Страница 38: ...y The parameter is a passed by value 16 bit integer Upon successful completion of the method the instrument will incorporate the specified synch frequency in all subsequent measurements See Also prDev...

Страница 39: ...rs spectralData String containing an array of spectral frequencies and corresponding energy values Returns A Int32 instrument operation result code 0 success negative number is error code Data Format...

Страница 40: ...AKT table using user provided values Parameters Takt1 Desired exposure time in microseconds for bright light color levels Takt2 Desired exposure time in microseconds for medium light color levels Takt...

Страница 41: ...CIE 1931 y value return from measurement of correlated light source Returns A Int32 instrument operation result code 0 success negative number is error code Sample txt File M1 name 380 starting freq 7...

Страница 42: ...Chapter 5 Software 38 string PR6xxComm CommBase prVersionInfo Get SDK version information Returns String containing Assembly name version and copyright...

Страница 43: ...periods of time and is certified for six months from the factory However changes in calibration are inevitable due to the effects of aging temperature and dirt accumulation Therefore for best results...

Страница 44: ...t of warranty visit our web site www photoresearch com to assign a Returned Material Authorization RMA number to your instrument before returning it to Photo Research for service The instrument should...

Страница 45: ...ge for Illuminant A 0 0005 to 2 900 cd m2 Luminance Repeatability for Illuminant A 0 15 0 5 cd m2 at 250 ms total measuring time Size L x W x H 10 79 x 6 69 x 7 40 in 270 x 170 x 188 mm Weight 9 55 lb...

Страница 46: ...3 5 353 5 7 0 371 9 371 9 7 5 299 0 335 2 390 3 390 3 8 0 310 4 350 1 396 3 396 3 8 5 328 364 4 MS 75 5 0 451 1 451 1 7 5 450 9 505 3 588 0 588 0 8 0 469 0 526 9 615 6 615 6 8 5 487 0 549 1 643 9 643...

Страница 47: ...43 FIGURE 13 A TKT V 7HS ENVELOPE DRAWING Front Mounting Hole...

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