Dario Toncich - Academia.edu (original) (raw)
Papers by Dario Toncich
International Journal of Flexible Manufacturing Systems, 1996
The International Journal of Advanced Manufacturing Technology, 1992
International Journal of Flexible Manufacturing Systems, 1996
International Journal of Flexible Manufacturing Systems, 1996
Int J Adv Manuf Technol, 1996
The objective of this paper is to demonstrate how digital signal processor (DSP) technology can b... more The objective of this paper is to demonstrate how digital signal processor (DSP) technology can be applied to servo motor control in order to generate closed-position-loop servo drives that can be applied in advanced manufacturing technology applications such as robotics, CNC and other machine positioning systems.
International Journal of Vehicle Design, Mar 20, 2015
Journal of Materials Processing Technology, Aug 20, 2003
Measurement, 2000
ABSTRACT This paper documents a research program in which a measurement system was developed for ... more ABSTRACT This paper documents a research program in which a measurement system was developed for the analysis of air flow through automotive air filters. The measurement sensor was based on the use of thermochromic liquid crystal paint and nichrome wire as a heater element. This paper incorporates results of tests carried out on filter paper using the developed measuring system. The examined filter paper was used for primary air intake combustion engine filters. Holes, in the range 50 μm to 2.35 mm were made in the filter paper using an excimer laser and air flow through the filter paper was examined. The visual patterns of air flow are compared and presented herein.
This paper overviews research being conducted at IRIS in the field of data acquisition for motors... more This paper overviews research being conducted at IRIS in the field of data acquisition for motorsport applications. The research is part of a collaboration between IRIS, the Cooperative Research Centre (CRC) for Intelligent Manufacturing Systems and Technologies (IMST) and an industrial sponsor, Motec Pty. Ltd. The research commenced on June 2001 and the expected completion date is June 2003. The
Nano- and Microtechnology: Materials, Processes, Packaging, and Systems, 2002
ABSTRACT
In digital position controllers, it is common to derive velocity information from a digital posit... more In digital position controllers, it is common to derive velocity information from a digital position encoder signal, thereby alleviating the requirement for a tachometer sensor. However, the effect of quantisation noise present in the position feedback may become problematic in certain applications. A technique is presented for overcoming the undesirable effects of encoder quantisation, when the digital encoder signal is
Optics and Lasers in Engineering, 2004
Excimer laser ablation of a thin Cr film on a glass substrate was evaluated through detecting aco... more Excimer laser ablation of a thin Cr film on a glass substrate was evaluated through detecting acoustic emission arising from the ablation process and observing surface morphology. In the experiment, an acoustic emission transducer was coupled to the sample to acquire acoustic emissions of laser–material interaction and an oscilloscope was used to record the signals. The patterned areas were examined
In micromachining, excimer laser ablation was a key process for producing featured by removing pa... more In micromachining, excimer laser ablation was a key process for producing featured by removing parts of a photoresist layer. One hurdle was that the seed layer (e.g., copper), on which the photoresist was spun, was easily attacked or damaged in laser ablation of the photoresist. To overcome this drawback, an acoustic emission transducer (AET) was coupled to the X-Y stage of an excimer laser system to acquire surface acoustic waves (SAWs) arising from pulsed laser-material interaction. The characteristics of such a process could then be investigated by analysing this feedback signal. The sequences of acoustic emission signals were transformed to frequency domain by employing fast Fourier transformations (FFTs). Analysis of the frequency spectrum showed that there were few dominant frequencies correlating with the ablation process through one material to another. Specifically, the amplitude of the dominant frequency was a function of the number of pulses, where an abrupt change could ...
Journal of Sound and Vibration, 2000
Journal of Materials Processing Technology, 2003
International Journal of Vehicle Design, 2000
International Journal of Machine Tools and Manufacture, 2000
In digital position controllers, it is common to derive velocity information from a digital posit... more In digital position controllers, it is common to derive velocity information from a digital position encoder signal, thereby alleviating the requirement for a tachometer sensor. However, the effect of quantisation noise present in the position feedback may become problematic in certain applications. A technique is presented for overcoming the undesirable effects of encoder quantisation, when the digital encoder signal is
International Journal of Flexible Manufacturing Systems, 1996
The International Journal of Advanced Manufacturing Technology, 1992
International Journal of Flexible Manufacturing Systems, 1996
International Journal of Flexible Manufacturing Systems, 1996
Int J Adv Manuf Technol, 1996
The objective of this paper is to demonstrate how digital signal processor (DSP) technology can b... more The objective of this paper is to demonstrate how digital signal processor (DSP) technology can be applied to servo motor control in order to generate closed-position-loop servo drives that can be applied in advanced manufacturing technology applications such as robotics, CNC and other machine positioning systems.
International Journal of Vehicle Design, Mar 20, 2015
Journal of Materials Processing Technology, Aug 20, 2003
Measurement, 2000
ABSTRACT This paper documents a research program in which a measurement system was developed for ... more ABSTRACT This paper documents a research program in which a measurement system was developed for the analysis of air flow through automotive air filters. The measurement sensor was based on the use of thermochromic liquid crystal paint and nichrome wire as a heater element. This paper incorporates results of tests carried out on filter paper using the developed measuring system. The examined filter paper was used for primary air intake combustion engine filters. Holes, in the range 50 μm to 2.35 mm were made in the filter paper using an excimer laser and air flow through the filter paper was examined. The visual patterns of air flow are compared and presented herein.
This paper overviews research being conducted at IRIS in the field of data acquisition for motors... more This paper overviews research being conducted at IRIS in the field of data acquisition for motorsport applications. The research is part of a collaboration between IRIS, the Cooperative Research Centre (CRC) for Intelligent Manufacturing Systems and Technologies (IMST) and an industrial sponsor, Motec Pty. Ltd. The research commenced on June 2001 and the expected completion date is June 2003. The
Nano- and Microtechnology: Materials, Processes, Packaging, and Systems, 2002
ABSTRACT
In digital position controllers, it is common to derive velocity information from a digital posit... more In digital position controllers, it is common to derive velocity information from a digital position encoder signal, thereby alleviating the requirement for a tachometer sensor. However, the effect of quantisation noise present in the position feedback may become problematic in certain applications. A technique is presented for overcoming the undesirable effects of encoder quantisation, when the digital encoder signal is
Optics and Lasers in Engineering, 2004
Excimer laser ablation of a thin Cr film on a glass substrate was evaluated through detecting aco... more Excimer laser ablation of a thin Cr film on a glass substrate was evaluated through detecting acoustic emission arising from the ablation process and observing surface morphology. In the experiment, an acoustic emission transducer was coupled to the sample to acquire acoustic emissions of laser–material interaction and an oscilloscope was used to record the signals. The patterned areas were examined
In micromachining, excimer laser ablation was a key process for producing featured by removing pa... more In micromachining, excimer laser ablation was a key process for producing featured by removing parts of a photoresist layer. One hurdle was that the seed layer (e.g., copper), on which the photoresist was spun, was easily attacked or damaged in laser ablation of the photoresist. To overcome this drawback, an acoustic emission transducer (AET) was coupled to the X-Y stage of an excimer laser system to acquire surface acoustic waves (SAWs) arising from pulsed laser-material interaction. The characteristics of such a process could then be investigated by analysing this feedback signal. The sequences of acoustic emission signals were transformed to frequency domain by employing fast Fourier transformations (FFTs). Analysis of the frequency spectrum showed that there were few dominant frequencies correlating with the ablation process through one material to another. Specifically, the amplitude of the dominant frequency was a function of the number of pulses, where an abrupt change could ...
Journal of Sound and Vibration, 2000
Journal of Materials Processing Technology, 2003
International Journal of Vehicle Design, 2000
International Journal of Machine Tools and Manufacture, 2000
In digital position controllers, it is common to derive velocity information from a digital posit... more In digital position controllers, it is common to derive velocity information from a digital position encoder signal, thereby alleviating the requirement for a tachometer sensor. However, the effect of quantisation noise present in the position feedback may become problematic in certain applications. A technique is presented for overcoming the undesirable effects of encoder quantisation, when the digital encoder signal is