Browsing by Supervisor "Künnemeyer, Rainer"
Now showing items 1-13 of 13
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A new optical configuration for flow cytometric sorting of bovine spermatozoa by sex
(The University of Waikato, 1997)The orthogonal axes of illumination, flow, and detection in conventional sorting flow cytometers can limit accuracy or throughput when making fluorescence measurements on aspherical cells. We report a new radially symmetric ... -
Ameliorating Systematic Errors in Full-Field AMCW Lidar
(University of Waikato, 2012)This thesis presents an analysis of systematic error in full-field amplitude modulated continuous wave range-imaging systems. The primary focus is on the mixed pixel/multipath interference problem, with digressions into ... -
Blu-ray cytometer
(University of Waikato, 2012)The flow cytometers are one of the most powerful devices used to measure the properties of individual particles passing through a sensing region. In this thesis, a low cost cytometer using a Blu-ray pickup is analysed and ... -
Doppler velocimetry lidar with amplified reference beam storage loop
(The University of Waikato, 2003)Wind shear and clear air turbulence are phenomena in which wind speeds can change rapidly presenting a threat to aircraft and their passengers. Lidar is a proven technique for wind speed measurement but remains a research ... -
Investigating aquaphotomics for fruit quality assessment
(The University of Waikato, 2020)The methods of aquaphotomics were explored for internal fruit quality assessment, such as dry matter (DM) and soluble solid content (SSC) measurement using near infrared spectroscopy (NIRS). Fruits like apple and kiwifruit ... -
Investigation of surge propagation in transient voltage surge suppressors and experimental verification
(University of Waikato, 2014)An on-going question in the field of surge protection study is how to predict incipient failure of power electronics in the event of a short time, high voltage, and high energy transient surge propagation. The work presented ... -
Laser-induced breakdown spectroscopy applied to pasture, titanium, and bioplastics
(The University of Waikato, 2018)Precision agriculture is a farming practice that makes production more efficient. Farmers are able to treat infield variability optimising efficiency, growth, and yield by tailoring the time, rate, and type of fertilizer ... -
Milk Spectroscopy
(University of Waikato, 2013)This thesis examines the capability of two different MicroNIR spectrometers to measure the composition of raw milk for an online milk sensor. On-farm milk testing is an important tool in a developed dairy market. It is ... -
NIR technologies for high speed fruit grading
(The University of Waikato, 2001)Today’s consumers seek information about food products so they can purchase with confidence, even if it translates to higher priced items. It is the aim of this thesis to improve the instruments available for the prediction ... -
Optical Techniques for Fruit Firmness Assessment
(University of Waikato, 2015)This thesis describes the design and development of a new high-speed multispectral imaging (MSI) system compatible with a commercial grading line. The purpose of this system was to carry out spatially resolved spectroscopy ... -
Self-Mixing Diode Laser Interferometry
(The University of Waikato, 2010)Self-mixing interferometry in a laser diode is a very powerful tool in measurement science. The Self-mixing interferometer is a very robust and low cost interferometer with extreme simplicity in alignment and setup. In ... -
Spatially resolved spectroscopy for detecting firmness and internal disorders of horticultural products
(The University of Waikato, 2018)Nondestructive detection of firmness and internal disorders are critical for New Zealand’s horticultural industry. Soft and internally defective products can result both in loss of revenue and the supplier’s reputation for ... -
Techniques for low coherence pulsed Doppler lidar
(The University of Waikato, 2000)Wind shear and clear air turbulence are atmospheric phenomena that pose a hazard to aircraft and their passengers. In the past, these phenomena have caused injuries and the occasional death. The ability of a lidar system ...
