SpinCore Technologies iSpin-NMR, Руководство пользователя

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iSpin-NMR
1. USB RadioProcessor Board: The heart of the iSpin-NMR system. The
RadioProcessor board generates the completely formed excitation signals and then
captures and digitally processes the NMR signals. Digital detection, filtering, and
autonomous signal averaging are standard features, as well as shaped excitation
pulses. For more information on RadioProcessor, including performance characteristics
from 0 to 100 MHz, please visit the URL
http://www.spincore.com/products/RadioProcessor/.
The RF output of the RadioProcessor is connected to the Power Amplifier module, and
the RF input is connected directly to the output of the small-signal preamplifier and filter.
2. Power Amplifier: Used to amplify the NMR excitation pulses. The supplied Power
Amplifier is broadband, and is able to supply continuous power at the desired frequency
of operation. The standard power amplifier used in the system is the PA10W, capable of
supplying 20 Watts Peak Envelope Power. There are several others available: the
PA15W, capable of supplying 30 Watts Peak Envelope Power, and the PA75W, capable
of supplying 150 Watts Peak Envelope Power. For more information, please visit
http://spincore.com/products/RFPA/ . If higher power is needed, a final Power Amplifier
stage can be provided with output power ranging from 100 to 1000 Watts. Please
contact SpinCore for more details.
3. Preamplifiers and filters: The supplied preamplifiers are broadband, and provide ~60
dB gain. The preamplifiers are supplemented with band-pass (or low-pass) filters.
When ordering, please specify your frequency of interest for the selection of appropriate
filters.
4. Input and output RF connectors: BNC Connectors are used for RF signals,
connecting with the Transmit/Receive Circuitry. NOTE: Systems that have internal
switching diodes will have three SMA connectors instead of two BNC connectors. More
information about these connectors can be found in the RF Connectors section on the
following page. An additional DB-9 type connector is used to output TTL signals for
multi-system synchronization or control of any required peripheral devices.
5. Universal AC Power Supply: Accepts 90-240 V AC power, 50 - 60 Hz. A standard PC
power cable can be used. No warm-up time needed/present, a sub-second power-on,
no user-serviceable fuse, internally protected, will shut-off when overloaded. Note: The
iSpin-NMR system contains a mechanical “Power On” switch that can be in two
positions: “On” or “Off.” If the unit is presently powered with the switch in the “On”
2020-07-21 10 www.spincore.com