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HSE Modular Stimulators I

The HSE stimulators I is of modular construction and can therefore be readily adapted to suit particular applications. A complete series of modules is available to produce suitable combinations. The high-powered output modules offer particular advantages.
The stimulation parameters can be set accurately and reproducibly against a long scale and can in addition be selected in steps over wide ranges.
  • Modular rack-mountable construction
  • Plug in modules for timing and control, stimulation output and specialty functions
  • Configurations for up to 8 output (stimulation) channels
  • Select from either constant current/constant voltage, constant voltage only and constant current only output modules

Generation of a stimulus requires selection of at least two time parameters and one amplitude:

  1. spacing of the pulses (rhythm R)
  2. duration of the pulses (width W)
  3. amplitude of the pulses

The appropriate timing modules and output modules provided for these purposes are:

  1. Basic Rhythm R
  2. Width W
  3. Output O

These basic functions and basic modules are therefore to be found in all four types of stimulators.
The different triggering modes (continuous stimulus trigger or gated trigger) are produced on a special module (start mode). Alternatively it is possible to connect up suitable triggering circuits.
The various models can be assembled from different modules. The output module can be a single-channel system (OVA) with voltage and current output, or a 4-channel system (O4V or O4A) for organ baths with several tissue vessels. Alternatively two timing circuits (TR and TW) can be fitted to produce so-called “trains” (stimulus groups) as required for stimulating smooth musculature, for example. If none of those modules is selected, the spaces provided in the stimulator remain empty and are closed by a blank panel.

Specific modules for special customized applications are also available.


HUGO SACHS ELEKTRONIK-HARVARD APPARATUS GmbH
Gruenstrasse 1 · D-79232 March-Hugstetten · GERMANY
Phone: +49 (0) 76 65 - 92 00-0 · Fax: +49 (0) 76 65 - 92 00-90