Digitale USB PC Oszilloskope - DScope
Verfasst: 19. Jun 2013 14:49
wollte da ne Info geben
http://www.pdamusician.com/dpscope/overview_se.html
sieht gut aus ist ein Bausatz und kostet nur 35euro.
specs
Many people who do electronics as a hobby or in education (where funds are notoriously tight) don't need
Certain features I consider key parameters for such an instrument, which gave a baseline for this effort:
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.
Triggering on either channel, rising or falling edge (selectable), or free running.
Pre-trigger capability to see what happened before and at the trigger event.
Datalogger mode (roll mode) to visualize and record slower changing signals.
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), requiring an analog bandwidth of at least 1 MHz. This
clearly precludes any sound-card based solution.
Spectrum Analyzer functionality (real-time Fast Fourier Transformation) so one can look at things
like distortion in an audio amplifier.
Sample rate up to 20 million samples/sec - the sample rate must be about 10x the analog
bandwidth to allow meaningful display without very advanced filtering.
Fast and smooth acquisition - shows the signals "as they happen", with a screen update rate up to
40 frames/sec.
Wide input range (from Millivolts to several 10 Volts).
Low-cost and easy to assemble, so any moderately skilled hobbyist can build his/her own.
Small and easy to use so even a user without much experience with oscilloscope gets a quick
start, and compact so it doesn't use much desk space.
Uses USB to connect to a computer as well as for power supply.
Edit Floh: Themeneigenschaft "Erfahrungsbericht" entfernt, da kein Erfahrungsbericht vorliegt.
http://www.pdamusician.com/dpscope/overview_se.html
sieht gut aus ist ein Bausatz und kostet nur 35euro.
specs
Many people who do electronics as a hobby or in education (where funds are notoriously tight) don't need
Certain features I consider key parameters for such an instrument, which gave a baseline for this effort:
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.
Triggering on either channel, rising or falling edge (selectable), or free running.
Pre-trigger capability to see what happened before and at the trigger event.
Datalogger mode (roll mode) to visualize and record slower changing signals.
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), requiring an analog bandwidth of at least 1 MHz. This
clearly precludes any sound-card based solution.
Spectrum Analyzer functionality (real-time Fast Fourier Transformation) so one can look at things
like distortion in an audio amplifier.
Sample rate up to 20 million samples/sec - the sample rate must be about 10x the analog
bandwidth to allow meaningful display without very advanced filtering.
Fast and smooth acquisition - shows the signals "as they happen", with a screen update rate up to
40 frames/sec.
Wide input range (from Millivolts to several 10 Volts).
Low-cost and easy to assemble, so any moderately skilled hobbyist can build his/her own.
Small and easy to use so even a user without much experience with oscilloscope gets a quick
start, and compact so it doesn't use much desk space.
Uses USB to connect to a computer as well as for power supply.
Edit Floh: Themeneigenschaft "Erfahrungsbericht" entfernt, da kein Erfahrungsbericht vorliegt.
