Operating Instructions Measurements With MAVOSPHERE Integrating Sphere 1/07.
This document describes the measurement procedure for MAVOSPEC in combination with MAVOSPHERE 205, MAVOSPHERE 500, MAVOSPHERE 1100 and MAVOSPHERE 2000.
2 The calibration of the self absorption Before further steps, the support for the sphere controller must be enabled in the MAVOSPEC settings. Press device preferences button to edit device settings.
In order to enable sphere controller port click the box "Sphere controller settings" and then type in the proper COM port number. NOTE: If you do not know the port number of COM port, run Windows Control Panel/ Devices and Printers and check the USB <-> Serial COM port No. Make sure that the dark current calibration has been done. NOTE: When making dark current calibration, cover the entrance aperture in the sphere to cut off the ambient light.
When the proper adapter is mounted to the MAVOSPEC, the Menu "Sphere Correction" will be displayed in Quick config panel. Before performing the actual self-absorption procedure, start the procedure with the open sphere and check if the auxiliary light source is being turned on during the measurement, as well as the yellow diode on Sphere Controller. If not, the wiring of Sphere Controller as well as settings of COM port has to be checked.
Measurement screen.
In the second step install the DUT. The measured light source (DUT) has to be switched off. Only the auxiliary light source mounted in MAVOSPHERE will be used for this measurement. Run the measurement by clicking the Next button. The next step is to specify the name of the correction file. The software by default is suggesting the existing name from the list. You can copy the name of the correction file by clicking the existing name. When the name is set click the Finish button.
The new correction file will be available on the Sphere correction list in Quick Config panel.
3 The actual measurement of light source Now the device is ready for the actual measuring of the light source (DUT). Connect measured light source to the power, check if the right correction is selected in Sphere correction list and start the measurements. The self absorption procedure should be carried out each time when the absorption of elements mounted in MAVOSPHERE is changing, e.g. another light source is mounted, or position of measured light source in the sphere is significantly changed.
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