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FL920P Spectrometer -
Data Acquisition
The FL920P employs the measurement principle of Time
Correlated Single Photon Counting (TCSPC) for fluorescence
measurements from 100picoseconds to 10microseconds and then
employs the principle of Multi-Channel scaling (MCS) for
measurements from 1microseocnd to 10seconds. For TCSPC
measurements we employ our TCC900 card, for MCS measurements
our PCS900 fast photon counter scalar card. Both these PC
plug-in cards have PCI interface. The PCS900 card can operate
in two modes for both steady state
and multi-channel scaling measurements. For details of MCS
operation please go to the dedicated section in the web site
by following this link MCS.
All important operating parameters of the PCS900 are fully
computer controlled and include input threshold, number of
sweeps and gate width
The PCS900 card features :
• PCI interface
• 3 channel counter
• Maximum count frequency of 100MHz, minimum
pulse width 10ns
• Up to 4000 gates of width 300ns to 0.4s
• Up to 232 counts per gate
• Accepts +/- 10mV to +/-5V input signal levels
• Multi channel scaling capability
• Accepts +1 to +5V external trigger
• Plug ‘n’ Play PCI bus interface.
• Standard half size PCI board dimensions
The TCC card features:
• PCI interface
• Time ranges 2.5ns to 50microseconds full scale
• Time resolution from 610fs/ch
• Ultra-low jitter <25ps
• Forward and Reverse modes
• Exceptional differential non-linearity
• Integrated shifting delays
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