T. Talala and I. Nissinen, "Fast Plastic Detection with a Time-Resolved Raman Spectrometer," 2023 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), Kuala Lumpur, Malaysia, 2023, pp. 1-6, doi: 10.1109/I2MTC53148.2023.10175939.
Fast plastic detection with a time-resolved Raman spectrometer
|Author:||Talala, Tuomo1; Nissinen, Ilkka1|
1Circuits and Systems Research Unit, University of Oulu, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 6.7 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe20230911122730
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2023-09-11
The performance of a time-resolved Raman spectrometer equipped with a new CMOS SPAD (single-photon avalanche diode) sensor was studied in fast detection of common plastic types. Sixteen samples, including transparent, white, and colored pieces of polyethylene, polypropylene, polyethylene terephthalate, and polystyrene were measured with different acquisition times and all measurements were repeated 200 times for detection probability calculations. When a time gate width of 450 ps was applied to reject the fluorescence emission, a 99% detection probability was achieved for transparent and white samples with the acquisition time of 250 μs. With colored samples, a 10-ms acquisition time was required to get at least a 99% detection probability for all the samples. For most of the samples, the acquisition time could be reduced when 450 ps time gate width was used instead of 3-ns time gate. For highly fluorescent samples, the reduction in required acquisition time was more than 90%.
IEEE International Instrumentation and Measurement Technology Conference
2023 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Proceedings
International Instrumentation and Measurement Technology Conference
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
This work was supported by the Academy of Finland under Contract 323719.
|Academy of Finland Grant Number:||
323719 (Academy of Finland Funding decision)
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