Thesis (MScEng)--University of Stellenbosch, 2002. / ENGLISH ABSTRACT: The purpose of this thesis was to design and test the interfaces of sensors and actuators. In the
complete Attitude Determination and Control System CADCS) the Interface Control Processor
(ICP) must be interfaced to various sensors and torquers.
The testing of interfaces involves the simulation of sensors and actuators and also two of the
Attitude Control Processor's functions, i.e. sending actuator commands and receiving sensor
data. The tested interfaces are for two actuators and three sensors. Both analog and digital
sensors and actuators are interfaced i.e. reaction wheels, magnetorquers, magnetometer and
horizon /fine sun sensor. The simulated sensors and actuators are to be employed on three axis
controlled, low earth o~biting micro-satellites.
To test the interfaces, a test circuit was developed and the design is presented. Finally the
software to facilitate the testing was developed and is also presented with the analysis based on
protocol implementation and data rates. / AFRIKAANSE OPSOMMING: Die doel van hierdie tesis was om sensor en aktueerder koppelvlakke te ontwerp en te toets. In
die volledige Attitude Determination and Control System CADCS) moet die Interface Control
Processor CICP) aan verskeie sensore en torquers gekoppel word.
Die toets van koppelvlakke behels die simulasie van sensore en aktueerders en ook twee van die
Attitude Control Processor (ACP) se funksies, naamlik die stuur van aktueerder bevele en die
ontvang van sensor data. Die koppelvlakke vir twee aktueerders en drie sen sore is getoets.
Beide analoog en digitale sensore en aktueerders is gekoppel, naamlik die reaksiewiele,
magneetspoele, magnetometer en horison I fyn son sensor. Die gesimuleerde sensore en
aktueerders sal gebruik word op drie-as beheerde, lae aardbaan mikrosatelliete.
Om die koppelvlakke te toets is 'n stroombaan ontwikkel waarvan die ontwerp hier aangebied
word. Sagteware om die toetse te fasiliteer is ontwikkel en word ook hier aangebied tesame met .
analises gebaseer op protokol implementering en data tempo's.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:sun/oai:scholar.sun.ac.za:10019.1/52715 |
| Date | 12 1900 |
| Creators | Dlamini, Zamokwakhe P. (Zamokwakhe Peacemaker) |
| Contributors | Du Plessis, J. J., Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. |
| Publisher | Stellenbosch : Stellenbosch University |
| Source Sets | South African National ETD Portal |
| Language | en_ZA |
| Detected Language | English |
| Type | Thesis |
| Format | 55 leaves : ill. |
| Rights | Stellenbosch University |
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