Vertilon SIB332B, Руководство пользователя

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User Guide
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Vertilon Corporation, 66 Tadmuck Road, Westford, MA 01886 / Tel: (978) 692-7070 / Fax: (978) 692-7010 / www.vertilon.com
Typical Setup
In a typical setup the Hamamatsu S8550 array is plugged into the SIB332B Sensor Interface Board (SIB) which in turn
connects to a Vertilon PhotoniQ IQSP480 or IQSP580 multi-channel data acquisition system using a SIB cable. Positive
bias to the APD array is supplied and controlled by an external power supply through a specialized high voltage cable.
When triggered from an external source, the PhotoniQ integrates and digitizes the 32 charge signals from the array and
outputs a data packet to the PC over a USB connection.
Figure 2: Typical Setup
High Voltage Interface
The SIB332B employs the interface circuit shown below between the high voltage input connector, J2, and the two
cathodes to the S8550. The monitor output (HVMON) allows the high voltage bias for the APD array to be indirectly
monitored at a reduced voltage level. Voltage readings at the monitor point should be scaled by a factor of 150.
Calibration of the scale factor may be required.
Warning: The high voltage section of the SIB332B contains signals at voltage levels
that can exceed positive 500 volts. Never touch a component or signal in this area.
Figure 3: APD Array High Voltage Interface Circuit