Virtual Instruments
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A "Virtual Instrument" usually contains all the signal processing of a traditional standalone instrument except
the display and user interface, storage and many times the final signal processing. These functions are
exported via some communications link to a local or remote PC. Since a PC has excellent input, display,
storage and number crunching capabilities this allows superior customer interaction and functionality along
with a lower total cost for the instrument.
Many modern systems, both small and large are built with virtual instrumentation blocks and a single PC to
process, store and display the data.
We have extensive experience with both low speed and high speed virtual instrumentation design and
communication links including,
Serial / RS422 / RS485
USB
LAN
SPI / I2C / CAN / LIN (These can be used, but are less likely than Serial, USB or LAN)
POTS Telephone MODEM
Functionally we have designed many virtual instrument blocks including,
DC - 20 GHz Frequency Synthesizers
Signal Sources
Network Analyzers
RF / Microwave Up-converter and Down-converters
Measuring and control instruments
Data Acquisition Modules
IQ Modulators and De-Modulators
Remote RF and Microwave Control and Monitoring Receivers
the display and user interface, storage and many times the final signal processing. These functions are
exported via some communications link to a local or remote PC. Since a PC has excellent input, display,
storage and number crunching capabilities this allows superior customer interaction and functionality along
with a lower total cost for the instrument.
Many modern systems, both small and large are built with virtual instrumentation blocks and a single PC to
process, store and display the data.
We have extensive experience with both low speed and high speed virtual instrumentation design and
communication links including,
Serial / RS422 / RS485
USB
LAN
SPI / I2C / CAN / LIN (These can be used, but are less likely than Serial, USB or LAN)
POTS Telephone MODEM
Functionally we have designed many virtual instrument blocks including,
DC - 20 GHz Frequency Synthesizers
Signal Sources
Network Analyzers
RF / Microwave Up-converter and Down-converters
Measuring and control instruments
Data Acquisition Modules
IQ Modulators and De-Modulators
Remote RF and Microwave Control and Monitoring Receivers
