§3 toont toepassingen waarbij frequentie niet hoeft te worden ingesteld!
3. pulsbreedte = pulstijd
andere benamingen die soms worden gebruikt
- pulstijd
- pulsduur
- cyclusduur cyclus & fase ≠ zelfde als puls op sommige apparaten toch gebruikt
- fasetijd
- faseduur
= duur van 1 enkele puls
- in MSC = variëren van 0,01 ms - 1000 ms
zenuw / spier laten reageren op MSC stimulus = stimulus specifieke duur hebben
- zenuw minimaal 0 03 ms = 30 µs
- spier + 1 ms
bijgevolg : spier ↓gevoelig dan zenuw!
4. pulsinterval "l pulspauze
pulse pauze = geschikter
- kan verwarring veroorzaken voor sommige
toepassingen
tijd tussen 2 opeenvolgende pulsen / 2 pulstreinen
uitgedrukt in
- microseconden (µsec of µ μs)
- milliseconden (msec of ms)
- seconden (sec )
in MSC instelbaar met een aparte knop
belangrijke parameter in MSC
- moet Δzijn voor normale spier
- 2000 ms = beste praktijk voor gedenerveerde spier
5. modulatie:
5.1.fade in time& hold time &fade out time of frequentiemodulatie
Nala Melis Pagina 2
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