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Digital Stimulus Generator DSG831
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 Download
Product Brochure (PDF, 363 kB)
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Overview
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The DSG831 is a programmable eight channel
digital stimulus generator, designed for a wide variety of
stimulus applications.
All channels can be operated independently or synchronized
to generate complex patterns of pulses.
The user wants very different stimulating patterns for different research
applications. Therefore, traditional stimulators have control panels that use buttons and knobs to give the user as much control options as possible. However, even with a full panel of buttons, the selection of the stimulating pattern is still limited and not very concise. |
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DSG831 (click here to enlarge)
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The DSG831 comes with an application software, which includes an editor to setup stimulating
protocols very
comfortable and concise. All settings are easy to configure and can
be uploaded to
the stimulator with a single mouse click. Thus, there is a significant reduction in setup time and a minimization of the potential for human error during interactive protocol modification.
Take the features tour
to read more about the included application software.
Paired Pulse Mode
The paired pulse mode of the DSG831 allows to generate
repetitive or triggered paired pulses with subsequent
inter-pulse intervals from a single channel. Auto-increment eliminates the need to overlap train functions from multiple channels to generate a complete
stimulus protocol.
Stimulus Isolation
The DSG831 can be used with a wide variety of stimulus isolators to achieve isolated signals if required. Our
opto-electrically isolated stimulus isolator IS4 is perfectly suited in conjunction with the DSG831.
Options and Pricing
The DSG831 comes with a serial interface RS-232 and logic level
output signals (0 / +5 V). Optional available is an USB 1.1 / 2.0
interface (option -USB) or an Ethernet 10/100 interface (option -ETH) as
well as a version with adjustable levels of the output signals (option -ADJ). The
pricing is very competitive, please contact
us for details.
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- 8 channels
- 3 external inputs
- Microcontroller controlled operation
- Serial interface RS-232 (optional USB 1.1 / 2.0
or Ethernet 10/100)
- Dynamic download of pulse protocols
- ASCII import of stimulation protocols
- 16 different setups loadable with a single
keystroke at the front panel
- Continuous or triggered operation
- Each channel can be triggered and / or gated
independently
- Individual time rates and duration of pulses
- Unlimited duration of stimulus protocols and
number of pulses, perfect for long-time stimulation
- Very accurate and flexible timing, time
resolution 25 us
- Application software included
- Very competitive price
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Operating Modes
Note that the triggering capabilities are
independent of the used operating mode, i.e. each pulse generator may be operated
continuously or triggered. Also the gating
capabilities are independent of the used operating mode, i.e. the
output signals may be gated or not, no matter what operating mode
is used.
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DC
DC output (high level / low level or toggle state) |
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Pulse
Pulse output (continuous or triggered operation) |
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Pulse Train
Train of pulses output (continuous or triggered operation) |
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Paired Pulse
Paired pulse output with subsequent inter-pulse intervals (continuous or triggered operation) |
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Trigger Modes
The trigger mode of each channel is selectable independently of the used
operating mode, i.e. each pulse generator may be operated
continuously or triggered, no matter what operating mode
is used.
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Free Running
Continuous pulse, pulse train or paired pulse output |
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Rising Edge Trigger
Triggered pulse, pulse train or paired pulse output
Adjustable delay after triggering from key(s), other channel(s),
external signal(s) or any combination of them |
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Falling Edge Trigger
Triggered pulse, pulse train or paired pulse output
Adjustable delay after triggering from key(s), other channel(s), external
signal(s) or any combination of them |
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Gating Modes
The gating mode of each channel is selectable independently of the used operating mode, i.e. the
output may be gated or not, no matter what operating mode
is used.
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None
The output is not gated |
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High Level
High level gating of the output by key(s), other channel(s), external
signal(s) or any combination of them |
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Low Level
Low level gating of the output by key(s), other channel(s), external
signal(s) or any combination of them |
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Output Node
The output signal of each channel can be any combination of the 8
available channels and the 3 external signals.
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Automatic Stop Modes
Each channel may be configured to automatically stop its operation
once a predetermined condition becomes true.
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None
No automatic stop |
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Pulse Count
Stop operation after the channel has outputted the predetermined
number of pulses |
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Time Total
Stop operation after the channel has been running for the predetermined
period of
time |
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Time Output High
Stop operation after the channel has outputted a high level
signal for the predetermined period of time |
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Time Output Low
Stop operation after the channel has outputted a low level
signal for the predetermined period of time |
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Application Software
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The DSG831 comes with an application software for Windows 2000 /
XP / Vista. The software includes an editor to setup and manage the
settings of the DSG831 as well as a scheduler to automatically
upload new pulse protocols to the stimulator at scheduled times.
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Editor
The editor allows to setup the settings of the DSG831 very
comfortable and concise due to all relevant channel settings of the
stimulator are apparent at a glance.
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Once all settings for an
experiment are complete, they can be uploaded to
the DSG831 - either to the working memory to apply the
settings immediately or to one of the 16 non-volatile memories
for later loading with a single keystroke at the front panel
of the stimulator. Before uploading, the editor automatically
tests the feasibility of the settings and shows detailed error and
warning messages if required.
Take the features tour
to read more. The settings can be saved to a file. Therefore, an almost unlimited
number of different settings can be managed and the stimulation
protocols for a specific experiment may be loaded very easy. Due
to the settings are saved
as ASCII files, the editor may also import and export
the settings from / to other applications.
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Click here to take the features tour...
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Scheduler
The scheduler allows the automatic upload of new settings to the DSG831 at scheduled times. This may be very useful to change
the stimulating protocols after a predetermined period of time. Take the features
tour to read more.
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| Specifications |
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| Pulse
Width |
0.025 ms to
107,374,182.375 ms (pulse, pulse train and paired pulse) |
| Period |
0.050 ms to
107,374,182.375 ms (pulse, pulse train and paired pulse) |
| Inter-Pulse
Interval |
0.050 ms to
107,374,182.375 ms (pulse train and paired pulse) |
| Inter-Pulse
Increment |
-53,687,091.200
ms to 53,687,091.200 ms (paired pulse) |
| Trigger
Delay |
0.050 ms to
107,374,182.375 ms (pulse, pulse train and paired pulse) |
| Pulse
Train |
2 to
4,294,967,295 pulses |
| Paired
Pulse |
2 to
4,294,967,295 steps |
| Trigger
Source |
Channel 1...8,
Key 1...8, External Input 1...3 (any combination possible) |
| Gating
Source |
Channel 1...8,
Key 1...8, External Input 1...3 (any combination possible) |
| Output
Node |
Channel 1...8,
External Input 1...3 (any combination possible) |
| Output
Voltage |
0 V / +5 V typ.
Option -ADJ: -10 V to +10 V typ. (10 mV resolution) |
| Output
Impedance |
50 Ohm typ. |
| Serial
Interface |
RS-232 (115200
bps, N81)
Option -USB: USB 1.1 / 2.0
Option -ETH: Ethernet 10/100 |
| Timing
Error |
±1 ppm typ.,
±4 ppm max. over operating temperature
range |
| Operating Temperature |
10º C to 40º C |
| Mains Voltage |
90 VAC to 250 VAC, 47 to 63 Hz |
| Mains Power Consumption |
50 W max. |
| Outline Dimension |
484 x 140 x 310 mm (w x h x d) |
| Weight |
5 kg |
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| More Information |
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» Product Brochure (PDF, 363 kB)
» Features Tour
» Digital Stimulus Isolator IS4
» Contact us
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Overview