Limits...
Hardware Implementation of Multiple Fan Beam Projection Technique in Optical Fibre Process Tomography

View Article: PubMed Central

ABSTRACT

The main objective of this project is to implement the multiple fan beam projection technique using optical fibre sensors with the aim to achieve a high data acquisition rate. Multiple fan beam projection technique here is defined as allowing more than one emitter to transmit light at the same time using the switch-mode fan beam method. For the thirty-two pairs of sensors used, the 2-projection technique and 4-projection technique are being investigated. Sixteen sets of projections will complete one frame of light emission for the 2-projection technique while eight sets of projection will complete one frame of light emission for the 4-projection technique. In order to facilitate data acquisition process, PIC microcontroller and the sample and hold circuit are being used. This paper summarizes the hardware configuration and design for this project.

No MeSH data available.


Comparison of DAR and resolution.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC3675551&req=5

f27-sensors-08-03406: Comparison of DAR and resolution.

Mentions: Thus, by comparing the number of sensors and DAR obtained by Chan [7] with the results achieved in this research, it has been verified that the multiple projection technique has a capability to increase the resolution of the hardware system (a higher number of sensors installed) and at the same time increasing the DAR (shorter time needed for data conversion in one frame). The graph shown in Figure 27 represents the improvement for the DAR achieved by multiple projection technique in this research when compared to the single projection result achieved by Chan [10].


Hardware Implementation of Multiple Fan Beam Projection Technique in Optical Fibre Process Tomography
Comparison of DAR and resolution.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3675551&req=5

f27-sensors-08-03406: Comparison of DAR and resolution.
Mentions: Thus, by comparing the number of sensors and DAR obtained by Chan [7] with the results achieved in this research, it has been verified that the multiple projection technique has a capability to increase the resolution of the hardware system (a higher number of sensors installed) and at the same time increasing the DAR (shorter time needed for data conversion in one frame). The graph shown in Figure 27 represents the improvement for the DAR achieved by multiple projection technique in this research when compared to the single projection result achieved by Chan [10].

View Article: PubMed Central

ABSTRACT

The main objective of this project is to implement the multiple fan beam projection technique using optical fibre sensors with the aim to achieve a high data acquisition rate. Multiple fan beam projection technique here is defined as allowing more than one emitter to transmit light at the same time using the switch-mode fan beam method. For the thirty-two pairs of sensors used, the 2-projection technique and 4-projection technique are being investigated. Sixteen sets of projections will complete one frame of light emission for the 2-projection technique while eight sets of projection will complete one frame of light emission for the 4-projection technique. In order to facilitate data acquisition process, PIC microcontroller and the sample and hold circuit are being used. This paper summarizes the hardware configuration and design for this project.

No MeSH data available.