Abstract
In this work design of electronic data cquisition unit for Laser Tomography (LT) system has been represented. Electronic hardware, Embedded software, PC interface programs have been developed for this purpose. 850 nm 20 mW laser source has been used to test the device validity check. General purpose photodiode acquired required back reflected laser light. 6 different integration times has been used for data acquistion test. 10 microseconds to 300 microseconds integration times were specific test criteria. 10 microseconds integration time resolution has been achieved. Pic18f2550 microcontroller (Microchip, Boise, ID) has been used to control the device main board and for data transfer process. DDC112 analog current input digital voltage output analog to digital converter (ADC) Burr-Brown products of Texas Instruments integrated circuit has been used for data conversion purpose. The device has been tested on left arm by laser source and general purpose pn photodiode.
References
- [1] Kazanci H.O., Mercan T., Canpolat M., "Design and evaluation of a reflectance diffuse optical tomography system," Optical and Quantum Electronıcs, vol.47, no.2, pp.257-265, 2014.
- [2] Kazanci H.O., Canpolat M., "Continuous Wave Diffuse Optical Tomography System with High Resolution Current to Voltage Analog Digital Converter ," El-Cezeri Journal of Science and Engineering, vol.2, no.1, pp.68-77, 2015.
- [3] Canpolat M., Kazanci H.O., Mercan T., Alimoğlu E., "Design of Breast Laser Tomography System and Pilot Clinical Results ," Akdeniz tıp dergisi, cilt.1, no.1, ss.58-63, 2015.
- [4] Mercan T., Kazanci H.O., Canpolat M., "Diffuse Optical Tomography System Design And Reconstruction Of Tail Fat Of Sheep As A Breast Phantom," SPIE Photonics West Optical Tomography and Spectroscopy of Tissue XI, San-Francisco, US, vol.9319, pp.80-80, Feb. 7- 12 2015.
- [5] Canpolat M., Mercan T., Sevimli G., Alimoğlu E., Kazanci H.O., "Meme Lazer Diffüz Optik Tomografi Sisteminin Geliştirilmesi ve Pilot Klinik Deney Sonuçları," 27. National Biophysic Congress , Malatya, Turkey, pp.11-14, 29 Sep. - 3 Oct. 2015.
- [6] Canpolat M., Kazanci H.O., Mercan T., "Developing And Testing A Multi-Source And Detector Reflectance Diffuse Optical Tomography System," SPIE Photonics West, SanFrancisco, US, pp.216-216, Feb. 1-6 2014.
- [7] Kazanci H.O., Mercan T., Canpolat M., "Lazer Meme Tomografi Sisteminin Geliştirilmesi Ve In-Vitro Deneyler," 26. National Biophysics Congress, Tokat, Turkey, 9-12 Sep. 2014.
- [8] Burr Brown Products from Texas Instruments, "Dual Current Input 20-Bit Analog To Dıgıtal Converter", SBAS085B January 2000 revised October 2004.
- [9] Microchip Pic18f2550 datasheet manual 2004.
- [10] Microchip MCP1541 4.096 Volt voltage referance datasheet manual 2012.
- [11] Texas Instruments OPA350 High-Speed, Single-Supply, Rail-to-Rail Operatıonal Amplıfıers MicroAmplifier Series datasheet manual 2005.
- [12] http://www.murata.com/en-global/products/emc/emifil/selectionguide. Murata ferrit bead selection guide.
- [13] Motorola K1100AM crystal oscillator datasheet manual 1995.
Abstract
Bu çalışmada Lazer Tomografi (LT) sistemi için elektronik veri toplama ünitesinin tasarımı sunulmuştur.
Bu amaçla elektronik donanım, gömülü yazılımlar ve bilgisayar arayüzü programı geliştirildi. Cihazı test etmek
için 850 nm 20 mW lazer kaynağı kullanılmıştır. Genel amaçlı fotodiyot geri yansıyan optik difüz lazer ışığını
toplamaktadır. Veri toplama testi için 10 - 300 mikrosaniye arasında altı farklı spesifik entegrasyon süresi
kullanılmıştır. Pic18f2550 mikro denetleyici (Microchip, Boise, ID) cihaz ana kartı kontrol etmek ve veri aktarım
işlemi için kullanılmıştır. DDC112 entegre devre, analog akım girişi ve dijital gerilim çıkışı içerir. DDC112,
Burr-BrownTM ve Texas InstrumentsTM firmalarının analogdan dijitale çevirici (ADC) çip ürünündür.
Tasarlanan cihaz sol kol üzerinde lazer kaynağı ve genel amaçlı pn fotodiyot kullaınlarak test edilmiştir. Bu
amaçla lazer tarayıcı içerisindeki değişiklikler yapıldı. İki DDC112 entegre tarayıcıdaki fotodiyota bağlandı ve
ve 650 nm dar bant geçiren filtre 850 nm filtre ile değiştirildi. 850 nm dalga boyunda geri yansıyan lazer ışığı, bu
filtre ve fotodiyot vasıtasıyla toplandı.
References
- [1] Kazanci H.O., Mercan T., Canpolat M., "Design and evaluation of a reflectance diffuse optical tomography system," Optical and Quantum Electronıcs, vol.47, no.2, pp.257-265, 2014.
- [2] Kazanci H.O., Canpolat M., "Continuous Wave Diffuse Optical Tomography System with High Resolution Current to Voltage Analog Digital Converter ," El-Cezeri Journal of Science and Engineering, vol.2, no.1, pp.68-77, 2015.
- [3] Canpolat M., Kazanci H.O., Mercan T., Alimoğlu E., "Design of Breast Laser Tomography System and Pilot Clinical Results ," Akdeniz tıp dergisi, cilt.1, no.1, ss.58-63, 2015.
- [4] Mercan T., Kazanci H.O., Canpolat M., "Diffuse Optical Tomography System Design And Reconstruction Of Tail Fat Of Sheep As A Breast Phantom," SPIE Photonics West Optical Tomography and Spectroscopy of Tissue XI, San-Francisco, US, vol.9319, pp.80-80, Feb. 7- 12 2015.
- [5] Canpolat M., Mercan T., Sevimli G., Alimoğlu E., Kazanci H.O., "Meme Lazer Diffüz Optik Tomografi Sisteminin Geliştirilmesi ve Pilot Klinik Deney Sonuçları," 27. National Biophysic Congress , Malatya, Turkey, pp.11-14, 29 Sep. - 3 Oct. 2015.
- [6] Canpolat M., Kazanci H.O., Mercan T., "Developing And Testing A Multi-Source And Detector Reflectance Diffuse Optical Tomography System," SPIE Photonics West, SanFrancisco, US, pp.216-216, Feb. 1-6 2014.
- [7] Kazanci H.O., Mercan T., Canpolat M., "Lazer Meme Tomografi Sisteminin Geliştirilmesi Ve In-Vitro Deneyler," 26. National Biophysics Congress, Tokat, Turkey, 9-12 Sep. 2014.
- [8] Burr Brown Products from Texas Instruments, "Dual Current Input 20-Bit Analog To Dıgıtal Converter", SBAS085B January 2000 revised October 2004.
- [9] Microchip Pic18f2550 datasheet manual 2004.
- [10] Microchip MCP1541 4.096 Volt voltage referance datasheet manual 2012.
- [11] Texas Instruments OPA350 High-Speed, Single-Supply, Rail-to-Rail Operatıonal Amplıfıers MicroAmplifier Series datasheet manual 2005.
- [12] http://www.murata.com/en-global/products/emc/emifil/selectionguide. Murata ferrit bead selection guide.
- [13] Motorola K1100AM crystal oscillator datasheet manual 1995.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Makaleler |
| Authors | |
| Publication Date | January 31, 2017 |
| Submission Date | January 13, 2016 |
| Published in Issue | Year 2017 Volume: 4 Issue: 1 |
