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Beamage-M² User Manual

Revision 6

7.10.

OTHER ISSUES

NOTE: The Beamage must not be disconnected while streaming.

1. Curve fit passes below 0

a. The measurement is made too far away from the waist:

i. We have too many points beyond -3.5Zr and 3.5Zr.

ii. We do not have enough points between

–Zr and Zr.

iii. Solutions:

1. Remove points far from the waist, one by one, and then recalculate.
2. Note the values of Z0 and Zr, clear all results and remeasure a set of

points expanding ONLY from -3.5Zr to +3.5Zr, not beyond.

3. Take more points around the waist.

b. The software cannot find the waist:

1. See section 7.8 Lens choosing guide above.

2. The value of M² is below 1

a. The system (not laser) affects the beam:

i. Check and clean every mirror and ND filter.

ii. Dust can change drastically a M² measurement.

iii. Broken optics or mirrors can change drastically a M² measurement.

iv. Look and ask for collimator adjustment.

b. ISO minimum requirements are not respected:

i. Look at the M² display for ISO minimum requirements.

ii. If not respected, add more data points (MORE THAN REQUIRED BY ISO).

c. The measurements were made too far away from the waist:

i. See section 7.8 Lens choosing guide above.

3. The software continually asks to change attenuation and take no measurement

Make sure the laser beam illuminates the camera’s sensor.

b. The laser beam might be so intense that it saturates the sensor near the focus.

Possible solutions:

i. Change the lens for a longer focal length, this will widen w

ii. Add attenuation before M1; a beam that has a power beyond 100 mW might

have some saturation issues near the focus.

c. The computer might be too slow (very low frame rate):

i. See section 7.5 Tips to increase the frame rate.

ii. Use the

Image averaging

function to stop the flickering.

4. Other things to double-check:

a.  The mirrors are well set.
b.  The camera is securely fastened.
c.  The filter on the camera is completely screwed.
d.  The moving stage is plugged with a

special

USB cable.

e. The beam is sufficiently attenuated.
f.

The drivers and software are up to date.

g. In case of uncertainty, uninstall everything with Windows control panel and install the

latest versions.

Содержание 203605

Страница 1: ...Beamage M User Manual Revision 6...

Страница 2: ...alfunction contact your local Gentec EO distributor or nearest Gentec EO Inc office to obtain a return authorization number The material should be returned to Gentec Electro Optics Inc 445 St Jean Bap...

Страница 3: ...uctions it may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful inter...

Страница 4: ...1 Open M File 20 5 2 2 Export M Data Only button 22 5 2 3 Save All M Images and Data button 22 5 2 4 Print M Report button 23 5 3 M SETUP TAB 24 5 3 1 M2 Fixed Values 25 5 3 2 Automatic Settings 25 5...

Страница 5: ...Manual Revision 6 iv 7 10 OTHER ISSUES 42 8 DECLARATION OF CONFORMITY 43 9 UKCA DECLARATION OF CONFORMITY 45 APPENDIX A ISO11146 AND ISO11670 DEFINITIONS 47 APPENDIX B RECYCLING AND SEPARATION PROCEDU...

Страница 6: ...FIGURE 5 10 OPEN M FILE 20 FIGURE 5 11 LESS THAN 20 OF AVAILABLE SPACE ON THE HARD DISK 20 FIGURE 5 12 LESS THAN 10 OF AVAILABLE SPACE ON THE HARD DISK 20 FIGURE 5 13 LESS THAN 255 MB OF AVAILABLE SP...

Страница 7: ...INTRODUCTION Gentec EO s Beamage beam profiler now has a powerful ally in its quest towards M2 measurement The Automated M2 Measurement System Beamage M With its low profile and smart hardware Beamag...

Страница 8: ...3 mm at Beamage Damage Threshold See specifications for Beamage 4M Translation Stage Travel Range 200 mm Effective Optical Path 180 587 mm Lens Focal Length 200 mm 250 mm 300 mm 400 mm 500 mm Optical...

Страница 9: ...x 193 mm W x 172 mm H Weight 6 8 kg 15 lb Power Supply 48V DC 1 25A out Environmental Storage Temperature 10 C to 60 C Storage Humidity RH 90 Operating Temperature 15 C to 28 C Operating Humidity RH...

Страница 10: ...fully assembled Beamage M is shown below A casing covers the moving parts to protect them from dust and to prevent accidental misalignment of the factory adjusted mirror M4 Figure 1 1 Assembled Automa...

Страница 11: ...Beamage M User Manual Revision 6 4 Figure 1 3 Beamage M module top side and front view 10 32 Camera set screw use 3 32 hex screwdriver...

Страница 12: ...e posts mounted ND filters during the measurement Lens Five cage mounted 2 lenses are supplied with every M2 system 200 mm 250 mm 300 mm 400 mm and 500 mm The cages screw onto SM2 female thread Transl...

Страница 13: ...laced into the SM2 threaded hole 3 Plug the camera into a USB 3 port on your computer equipped with the latest PC Beamage software version 4 Connect the Beamage M rail to a USB 2 or USB 3 port Note th...

Страница 14: ...th a suitable beam blocker then turn it on f Be sure not to damage the system i If your laser beam has a power higher than 100 mW put some attenuation in the beam path before mirror M1 ii Use ND Filte...

Страница 15: ...in the Display screen and use mirror M2 see Figure 2 3 Alignment tube to center the beam on the sensor r Click on the left arrow in Manual Settings this moves the stage to the closest possible positi...

Страница 16: ...d firmware can also be found on the USB key provided 1 If PC Beamage is already installed on your computer the version is automatically verified at every software boot provided you have an internet co...

Страница 17: ...ra recognized on the Beamage Selector pop up click OK Figure 3 2 Beamage camera selector pop up 3 Turn on the laser you want to measure and make sure it is aligned according to section 2 2 4 In the so...

Страница 18: ...ck Yes to automatically start an M measurement once the SETUP phase is completed Figure 3 5 Select the action following the setup phase 8 Execute the tasks required to obtain good measurement conditio...

Страница 19: ...aser beam to be blocked to execute the background noise subtraction 10 Release the laser blocking once the Please block your laser pop up disappears to let the Beamage M device execute an automatic me...

Страница 20: ...s is associated with a low divergence and a good ability to focus Multimode lasers have higher M2 factors 4 1 1 Propagation Parameters In the following equations th refers to theoretical values and ex...

Страница 21: ...obtained by multiplying the beam divergence half angle with the focal length f 0 As mentioned all of the equations above describe theoretical ideal Gaussian beams However they can describe the propag...

Страница 22: ...sing lens is mandatory It is also mandatory to comply with ISO standard It helps to compress the slices of interest around the focal spot of the lens Please refer to ISO 11146 for more information Fig...

Страница 23: ...nual Revision 6 16 5 M2 MEASUREMENT CONTROLS The controls allowing an M2 measurement are toggled by clicking on the M2 button under the Advanced tab It also adds an M2 display button Figure 5 1 M2 mai...

Страница 24: ...rive which will be used for the calculation of M2 These files will be deleted every time the application starts up or every time you use the Clear all button 5 1 1 M2 button The M2 button activates th...

Страница 25: ...likely measures the M2 factor of laser systems rather than laser beams For this reason by default the M2 Advanced button is inactive Figure 5 4 M2 Advanced button 5 1 3 Image index The Image Index ed...

Страница 26: ...e M2 Buffer Size displays the number of images stored on the list containing M2 measurements By default the M2 buffer size is 1 The M2 buffer size dynamically increases every time a new beam measureme...

Страница 27: ...rmation Press OK to keep on using the PC Beamage software see Figure 5 11 Figure 5 10 Open M File Figure 5 11 Less than 20 of available space on the hard disk If your hard drive has less than 10 of it...

Страница 28: ...nd you will have a notification when you press on the load button as well as each time that you restart the PC Beamage software If you receive this message please free up some hard drive space to avoi...

Страница 29: ...mode Interpolated values in X and Y axis o z0 o d0 o ZR o Divergence o Delta Z o Astigmatism o BPP o M Beam slices data o Beam number o Distance along Z axis propagation o X diameter o Y diameter o E...

Страница 30: ...button A customized print report has been created for the M2 mode Figure 5 16 Print M Report button Figure 5 17 M2 print report Tip You can print the M report even without a connected Beamage camera J...

Страница 31: ...These buttons trigger the automatic data acquisition algorithms for rapid M measurement or ISO measurement from existing data Section allowing a user to manually define several data points and their...

Страница 32: ...check whether the lens and or the attenuation values need to be modified in order to execute the proper background subtraction and will pop messages accordingly The user is prompted to block the lase...

Страница 33: ...ettings window which allows the setting of the Specified Distance which possesses a default value of 14 0 mm or Specified Step which presents a default value of 30 steps Also allows setting the Start...

Страница 34: ...e current settings without starting a measurement The Cancel button ignores the modified values from the fields Start button Quick starts an M measurement using the parameters from the stage settings...

Страница 35: ...ded travel distance between 3 5 and 3 5 to correct the problem see Figure 5 25 Figure 5 25 Curve Fit Passes Under Zero A minimum of 5 beams must be detected to calculate M2 Upon clicking the START ISO...

Страница 36: ...aken and click the Add button This can be done several times if needed The arrow buttons allow you to go quickly at one end or the other of the moving stage These are useful when aligning the laser Yo...

Страница 37: ...ese diameters will be recalculated automatically and updated on the list If the Beamage is not streaming you can select a row in the list using the mouse and the image corresponding to this measuremen...

Страница 38: ...delete key on your keyboard Clear All button Removes all the data from the Data box Sort button This button can be employed to refresh the Index numbers left column and rearrange the rows by Distance...

Страница 39: ...X Parameters Results of the calculations for the beam profile on the X axis Y Parameters Results of the calculations for the beam profile on the Y axis XY Parameters Summary of the comparisons between...

Страница 40: ...axies Delta Z Distance between 0 and 0 on the propagation axis Astigmatism How far apart the X and Y waists are compared to the focal length 0 0 Figure 5 33 Calculation results of the natural beam be...

Страница 41: ...ue of the beam as defined in section 4 BPP Beam Parameter Product defined as the product of the measured divergence times the waist diameter size 0 2 0 2 Figure 5 35 M2 and BPP results 5 4 4 Definitio...

Страница 42: ...s m as functions of the lens to sensor distance mm The graphic is automatically generated when you press the Calculate M2 button Save an image of the current graph as a bitmap bmp or JPEG jpg file Use...

Страница 43: ...re is a simplified setup to measure the M2 factor Please make sure to properly attenuate the laser beam before the lens as the beam power density will be higher at the waist position after the lens Fi...

Страница 44: ...Enter the focal length of the lens chosen for the installation Figure 6 3 M2 Fixed Values window 5 Measure the distance between the lens and the sensor of the Beamage The sensor is positioned at 7 8 m...

Страница 45: ...Data Save all beams from the list to a m2geo file i Export M Data Only Export all the data to an Excel compatible txt file 10 When a minimum of 5 beams have been entered you can use the Calculate M fu...

Страница 46: ...HERE IS NO SERIAL NUMBER DISPLAYED ON THE BEAMAGE SELECTOR WINDOW Please close the PC Beamage software wait a few seconds then reopen PC Beamage If the problem persists please verify in the Task Manag...

Страница 47: ...ns Here is the procedure to replace a lens Different cases of bad focal length choice are presented right after 1 Replacing the lens a Lower all the ND filters b Unscrew the iris and the iris adapter...

Страница 48: ...camera output in PC Beamage set 2D view and turn the translation stage knob to find the waist From there start an acquisition and use the software to find the maximum measurement range Repeat in the...

Страница 49: ...or ISO minimum requirements ii If not respected add more data points MORE THAN REQUIRED BY ISO c The measurements were made too far away from the waist i See section 7 8 Lens choosing guide above 3 Th...

Страница 50: ...ng and measurements of radiated emission Class A IEC 61000 4 2 2001 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Section 2 Electrostatic discharge Class B IEC 61000 4 3...

Страница 51: ...Beamage M User Manual Revision 6 44 I the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standard s Place Qu bec Qu bec Date July 14 2017 President...

Страница 52: ...ing and measurements of radiated emission Class A IEC 61000 4 2 2001 Electromagnetic compatibility EMC Part 4 Testing and measurement techniques Section 2 Electrostatic discharge Class B IEC 61000 4 3...

Страница 53: ...amage M User Manual Revision 6 46 I the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standard s Place Qu bec Qu bec Date December 7 2021 Presiden...

Страница 54: ...width s minimum The effective diameter of the beam is an extent of a circular power density having an ellipticity greater than 0 87 If the ellipticity is larger than 0 87 the beam profile may be cons...

Страница 55: ...d Y axes already saved in the buffer and n is the number of computed centroid positions saved in the buffer The azimuth angle which is the angle between the usual X axis and all computed centroids is...

Страница 56: ...1 2 2 1 2 and 2 are derived from 2 and 2 by transformation of coordinates Here X Y Z represent the usual or laboratory coordinate system and X Y Z is the beam axis coordinate system The RMS standard d...

Страница 57: ...casing connector plate mirror posts lens holding tubes Wires USB cables power supply Printed circuit board Inside the Beamage 4M and inside the electrical moving stage Glass ND filters and mirrors DI...

Страница 58: ...Beamage M User Manual Revision 6 51...

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