Many
people who do electronics as a hobby or in education want a Scope that is
very affordable yet highly usable in practice.
ScopeMetrics offer a low cost USB Scope that is both
powerful and affordable.
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Two input channels;
many of the low-end scopes on the market have only a single channel which
makes them little more than a toy - too often you need to display one signal
with respect to an other
(e.g. clock vs. data) and or trigger on a signal different to the one you
want to look at.
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Triggering on either channel, rising or falling edge
(selectable), or free running.
- Covers the typical applications in a hobby
environment
- things like audio (0 - 20 kHz),
ultrasound (< 200 kHz) and infrared (38 kHz), servo motor control (a few
kHz), common data
transmission protocols (RS-232, CAN, I2C, SPI, one-wire), so the analog
bandwidth must be
at
least 1 MHz.
This clearly precludes any sound-card based solution.
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Real-time Fast Fourier Transformation so one can use it as a simple
spectrum analyzer,
e.g. to
look at things like distortion in an audio amplifier.
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Since the sample rate must be about 10x the analog bandwidth to allow
meaningful display without
very advanced filtering, it needs
at least 10 million samples/sec..
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Fast and smooth acquisition
- ideally it shows the signals "as they happen", i.e. with a screen
update rate of at least 10 frames/sec.
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Needs a
wide input range
(from Millivolts to several 10 Volts).
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Low-cost and easy to assemble,
so any moderately skilled hobbyist can build his/her own.
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Small and easy to use
so even a user without much experience with oscilloscope gets a quick
start, and make it compact so it doesn't use much desk space.
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Uses
USB to connect to a computer
as well as for power supply
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