Conversion / processing model

Ref:185040
• Acquisition of signals from the sampler blocker to analogue-digital and digital-analogue conversion
• Evaluation of the impact of the conversion parameters in real-time
• Acquisition of a frame of digital data
• Controlling the actuator (all-or-nothing or controllable output)
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Data sheet Conversion / processing model

Description

➀ the sampler blocker is activated, either manually
by pressing a button or automatically
at a frequency that the student selects with
a switch.
➁ The analogue-digital converter converts the
blocked voltage into a binary word displayed
using an LED, for which the student adjusts
the resolution using a switch.
➂ The digital-analogue converter reproduces a
voltage. This voltage is the image of the quantifi
ed voltage, which may be compared to the
sampled-blocked voltage (see opposite).
➃ The frame of data may be measured to demonstrate
the principle of concatenation of
digital data in series form, data which are the
image of the digitised analogue signal.
➄ The digital processing can defi ne the transfer
characteristics of a sensor, to display the value
of the real physical magnitude (magnitude
and unit) and program a setting to control an
actuator.
1 input voltage / sensor ± 5 V.
1 output 32 Ohms ± 5 V (compatible with headset
and loudspeaker).
1 output all-or-nothing or controllable 0-5 V.
Resolution: 2, 4, 6, 8 and 10 bits.
Sampling frequency: 1, 5, 10, 15 and 20 kHz.
Manual or automatic sample blocking
Bar graph of binary word upon LED.
1 programmed digital processing interface.
12 V power supply provided.

Specifications

1 input voltage / sensor ± 5 V.
1 output 32 Ohms ± 5 V (compatible with headset
and loudspeaker).
1 output all-or-nothing or controllable 0-5 V.
Resolution: 2, 4, 6, 8 and 10 bits.
Sampling frequency: 1, 5, 10, 15 and 20 kHz.
Manual or automatic sample blocking
Bar graph of binary word upon LED.
1 programmed digital processing interface.
12 V power supply provided.
Propagation medium Trame numérique
Theme: human histology A/D - D/A conversions, Signal conditioing / Measurement chain

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