Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Probe characterisation, design and evaluation for the real-time quality Indication of milk
Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006.
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Stellenbosch : University of Stellenbosch
2008
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613782274998272 |
|---|---|
| access_status_str | Open Access |
| author | Van der Westhuyzen, Petrus Johannes |
| author2 | Fourie, C. J. |
| author_browse | Fourie, C. J. Van der Westhuyzen, Petrus Johannes |
| author_facet | Fourie, C. J. Van der Westhuyzen, Petrus Johannes |
| author_sort | Van der Westhuyzen, Petrus Johannes |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/1804 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:41:36.774Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/1804 Probe characterisation, design and evaluation for the real-time quality Indication of milk Van der Westhuyzen, Petrus Johannes Fourie, C. J. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Detectors Capacitance meters -- Design and construction Electronic instruments -- Design and construction Dissertations -- Electronic engineering Theses -- Electronic engineering Electrical and Electronic Engineering Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2006. In order to rapidly detect, monitor and predict changes in milk as it ferments, sensors would need to be designed specifically for milk. To this end, invasive surgical stainless steel probes were investigated and the probe impedances were characterised according to measurements made in various saline concentrations. Based on these findings, specific probes were designed that were robust and easy to use in milk. To measure multiple probe sensors continuously and accurately, an automatic measurement device was designed and manufactured. The device was self-sustaining, portable and calculated and stored all probe impedance data internally, allowing experimental runs to take place in controlled laboratory environments. The probes designed in this thesis were consequently tested in various milk fermentation experiments and it was found that surgical stainless steel probes were effective at detecting and monitoring fermentation changes. The probe impedance changes also lead the pH changes in milk, giving it a predictive element. The probe sensor studies provided enough data so that studies could be done into potential non-invasive sensors. Therefore, capacitive sensors were investigated and a fringe field capacitor was presented as a potential non-invasive milk fermentation sensor. 2008-01-17T12:53:27Z 2010-06-01T08:33:45Z 2008-01-17T12:53:27Z 2010-06-01T08:33:45Z 2006-12 Thesis http://hdl.handle.net/10019.1/1804 en University of Stellenbosch 1844364 bytes application/pdf application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Detectors Capacitance meters -- Design and construction Electronic instruments -- Design and construction Dissertations -- Electronic engineering Theses -- Electronic engineering Electrical and Electronic Engineering Van der Westhuyzen, Petrus Johannes Probe characterisation, design and evaluation for the real-time quality Indication of milk |
| title | Probe characterisation, design and evaluation for the real-time quality Indication of milk |
| title_full | Probe characterisation, design and evaluation for the real-time quality Indication of milk |
| title_fullStr | Probe characterisation, design and evaluation for the real-time quality Indication of milk |
| title_full_unstemmed | Probe characterisation, design and evaluation for the real-time quality Indication of milk |
| title_short | Probe characterisation, design and evaluation for the real-time quality Indication of milk |
| title_sort | probe characterisation design and evaluation for the real time quality indication of milk |
| topic | Detectors Capacitance meters -- Design and construction Electronic instruments -- Design and construction Dissertations -- Electronic engineering Theses -- Electronic engineering Electrical and Electronic Engineering |
| url | http://hdl.handle.net/10019.1/1804 |
| work_keys_str_mv | AT vanderwesthuyzenpetrusjohannes probecharacterisationdesignandevaluationfortherealtimequalityindicationofmilk |