Reflection and Scattering
365nm to 970nm 
7 wavelengths 
0.01% resolution
0.1% accuracy


Reflectometer-Scaterometer for Telescope Mirror Monitoring

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This area is dedicated to product news and solutions of known issues related to exploitation of CT-7 multi wavelength reflectometer.

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015  CT7 Firmware upload

CT7 is pretty much software defined instrument, with  digita signal filter, DSP. Even the analog signal paths is in the reality partially digital or controlled by digital parameters.. 

It's quite natural that  we are continously improving the instruments' firmware.  This article explains how to  upload CT7 using CT7-Console application and firmware downoaded from CT7 support www.  

The procedure is straightforward and takes just about 1 minute.


014 Soft reflectivity calibration

CT7 has no intrinsic reflectivity reference. The construction of the instrument and its measurement technique ensures very high precision and stability of measured ratio of source intensity to the  returned signal.

This ratio is converted to reflectivity value by dividing it by calibration coefficient which is found by measuring a known mirror in CALIBRATION operation.


011 CT7 Export data to Excel

CT7 allows to export data in CVS format easily processed by programs like Excel.

Reading CT7 exported data, may require two simple manual action:

  1. The columns of exported data are saparated by tabulation sign "\t".  Depending on Excel settings, a manual conversion text-to-colums shall be performed.
  2. CT7   works with fixed decimal point convention:  decimal separator is a dot "." .


007. CT7 Console. Easy way to set time (and other parameters)

CT7 is fully featured and operational as a stand alone instrument. 

Nevertheless, setting parameters with joystick and a small display of handheld device, is not as confortable as  typing the values on a PC keyboard.

For this reason, beginning from version 1.00.07 of CT7-Console we have included extended parameters control ( mode Advanced and Expert).


006. CT7 installation on  Win7,8,10 system

The installation procedure for Windows 7,8,10 is simpler than ever.

In contrast to XP and Vista systems, the USB driver will be  automatically downloaded (*) and installed. The necessary  ".NET framework" is already included since Win7 .

You may use CT7 software provided with the instrument or check for updated versions from CT7 DOWNLOAD AREA.

(*) The PC shall have internet access.


005. CT7:  Windows XP and Vista installation

The installation procedure is  simple on Windows XP and Vista systems, however the USB driver shall be installed manually prior to connection of the instrument.

During the setup of CT7 Console  the  ".NET framework"  will be  automatically(*) downloaded from Microsoft and installed .

(*) The PC shall have internet access.