| The
AD8 is one of the most powerful little A/Ds available.
You can connect 16 of them on a single serial port, allowing
you to monitor up to 32 analog inputs at about 25 samples per
second or monitor 2 inputs at 400 samples per second.
Standard 0-5 volt analog
voltage inputs allow you to monitor most sensors in .02 volt
increments. Application notes (see
AD8 users manual) show you how to connect the AD8 to all
types of sensors for applications ranging from temperature
monitoring to light and magnet sensing.
One of the most unique features
of the AD8 is its period measurement input. PMI is used
to count incoming pulses across time, making it an ideal
controller for converting revolutions of any motor into
RPMs. Simply connect the PMI input to a magnetic or
optical sensor (application notes
included in the manual) and issue the PMI command. A
couple of seconds later, the PMI will return a number to your
computer. Use our formulas to convert the PMI to
RPMs. The whole process takes about 14 lines of QBasic
code.
The AD8 also has 3 programmable
logic-level outputs, making it an ideal solution for
"Read & Respond" applications.
A unique Pulse Width Modulation
(PWM) output is ideally suited for monitoring and controlling
the temperature in a room or aquarium with amazing
precision.
The AD8 is commonly used in all
types of light, temperature, and sound measuring
applications. Some customers are using it to monitor
engine temperature in high-performance race cars. It has
also been used to monitors RPMs of diesel generators,
windmills, and water turbines. Its output functions are
commonly used to react to measured inputs, slowing an
overheated motor or activating lights and heaters if the
brightness or temperature falls out of range...all while
providing a graphical user interface on a desktop or laptop
computer.
Visual Basic 6 Professional or
Enterprise edition is recommended for all NCD products.
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