IR LED PULSER FOR STROBOSCOPIC SWLI

Tutkimustuotos: Artikkeli kirjassa/raportissa/konferenssijulkaisussaKonferenssiartikkeliTieteellinen

Kuvaus

Stroboscopic Scanning White Light Interferometry (SSWLI) utilizes a pulsed light source. SSWLI is often used in Quality Control of oscillating Micro-Electro-Mechanical Systems (MEMS). The operating frequency of typical MEMS-devices ranges from a few hertz up to several megahertz [1-2]. The usefulness of a stroboscopic light source de-pends on its capability to produce short and bright pulses of light. Light Emitting Diodes (LEDs) are advantageous as an stroboscopic light source due to their fast switching times, high efficiency and low cost. MOSFET drivers are suitable for driving LEDs due to the capacitive loading characteristics of LEDs. The driver should be able to quickly charge and then discharge the junction capacitance.
A custom-made LED driver was built using an integrated MOSFET driver from IXYS RF (IXDD415SI) [3]. The components were soldered on single-sided Metal-Core Print-ed Circuit Board (Thermal Clad®) for better stability and performance due to good thermal conductivity (2.2 W/(m·K)) [4].
In the visible range we achieved a minimum measured optical pulse Full Duration at Half Maximum of 8.42 ± 0.03 ns using non-phosphor white LED (American Opto Plus L-513NPWC-15D) pulsed at 1 MHz with 0.7 % duty cycle, and 32.08 ± 0.03 ns using white phosphor-converted LED (Nichia NSPW300BS) pulsed at 1 MHz with 0.7 % duty cycle. From measurements it can be shown that it’s possible to drive single color LEDs as high as 10 MHz with 10% duty cycle. In the infrared (IR) range we measured optical pulses FDHM of 20.52 ± 0.03 ns for 1020nm IR LED (LED1020-03), 22.92 ± 0.03 ns for 1050nm IR LED (LED1050-03) and 21.65 ± 0.03 ns for 1070nm IR LED (LED1070-03).
Alkuperäiskielienglanti
OtsikkoPhysics Days : The 46th annual meeting of the Finnish Physical Society, proceedings
Sivumäärä1
Julkaisupäivä2012
Sivut110
TilaJulkaistu - 2012
OKM-julkaisutyyppiB3 Vertaisarvioimaton artikkeli konferenssijulkaisussa
TapahtumaPhysics Days - Joensuu, Suomi
Kesto: 13 maaliskuuta 201215 maaliskuuta 2012
Konferenssinumero: 46

Tieteenalat

  • 114 Fysiikka

Lainaa tätä

Paulin, T., Heikkinen, V., Kassamakov, I. V., & Haeggström, E. (2012). IR LED PULSER FOR STROBOSCOPIC SWLI. teoksessa Physics Days: The 46th annual meeting of the Finnish Physical Society, proceedings (Sivut 110)
Paulin, Tor ; Heikkinen, Ville ; Kassamakov, Ivan Vladislavov ; Haeggström, Edward. / IR LED PULSER FOR STROBOSCOPIC SWLI. Physics Days: The 46th annual meeting of the Finnish Physical Society, proceedings. 2012. Sivut 110
@inproceedings{f25cf24c83e647cebb1dd4b38b8f0b61,
title = "IR LED PULSER FOR STROBOSCOPIC SWLI",
abstract = "Stroboscopic Scanning White Light Interferometry (SSWLI) utilizes a pulsed light source. SSWLI is often used in Quality Control of oscillating Micro-Electro-Mechanical Systems (MEMS). The operating frequency of typical MEMS-devices ranges from a few hertz up to several megahertz [1-2]. The usefulness of a stroboscopic light source de-pends on its capability to produce short and bright pulses of light. Light Emitting Diodes (LEDs) are advantageous as an stroboscopic light source due to their fast switching times, high efficiency and low cost. MOSFET drivers are suitable for driving LEDs due to the capacitive loading characteristics of LEDs. The driver should be able to quickly charge and then discharge the junction capacitance.A custom-made LED driver was built using an integrated MOSFET driver from IXYS RF (IXDD415SI) [3]. The components were soldered on single-sided Metal-Core Print-ed Circuit Board (Thermal Clad{\circledR}) for better stability and performance due to good thermal conductivity (2.2 W/(m·K)) [4].In the visible range we achieved a minimum measured optical pulse Full Duration at Half Maximum of 8.42 ± 0.03 ns using non-phosphor white LED (American Opto Plus L-513NPWC-15D) pulsed at 1 MHz with 0.7 {\%} duty cycle, and 32.08 ± 0.03 ns using white phosphor-converted LED (Nichia NSPW300BS) pulsed at 1 MHz with 0.7 {\%} duty cycle. From measurements it can be shown that it’s possible to drive single color LEDs as high as 10 MHz with 10{\%} duty cycle. In the infrared (IR) range we measured optical pulses FDHM of 20.52 ± 0.03 ns for 1020nm IR LED (LED1020-03), 22.92 ± 0.03 ns for 1050nm IR LED (LED1050-03) and 21.65 ± 0.03 ns for 1070nm IR LED (LED1070-03).",
keywords = "114 Physical sciences",
author = "Tor Paulin and Ville Heikkinen and Kassamakov, {Ivan Vladislavov} and Edward Haeggstr{\"o}m",
note = "Volume: Proceeding volume:",
year = "2012",
language = "English",
pages = "110",
booktitle = "Physics Days",

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Paulin, T, Heikkinen, V, Kassamakov, IV & Haeggström, E 2012, IR LED PULSER FOR STROBOSCOPIC SWLI. julkaisussa Physics Days: The 46th annual meeting of the Finnish Physical Society, proceedings. Sivut 110, Physics Days, Joensuu, Suomi, 13/03/2012.

IR LED PULSER FOR STROBOSCOPIC SWLI. / Paulin, Tor; Heikkinen, Ville; Kassamakov, Ivan Vladislavov; Haeggström, Edward.

Physics Days: The 46th annual meeting of the Finnish Physical Society, proceedings. 2012. s. 110.

Tutkimustuotos: Artikkeli kirjassa/raportissa/konferenssijulkaisussaKonferenssiartikkeliTieteellinen

TY - GEN

T1 - IR LED PULSER FOR STROBOSCOPIC SWLI

AU - Paulin, Tor

AU - Heikkinen, Ville

AU - Kassamakov, Ivan Vladislavov

AU - Haeggström, Edward

N1 - Volume: Proceeding volume:

PY - 2012

Y1 - 2012

N2 - Stroboscopic Scanning White Light Interferometry (SSWLI) utilizes a pulsed light source. SSWLI is often used in Quality Control of oscillating Micro-Electro-Mechanical Systems (MEMS). The operating frequency of typical MEMS-devices ranges from a few hertz up to several megahertz [1-2]. The usefulness of a stroboscopic light source de-pends on its capability to produce short and bright pulses of light. Light Emitting Diodes (LEDs) are advantageous as an stroboscopic light source due to their fast switching times, high efficiency and low cost. MOSFET drivers are suitable for driving LEDs due to the capacitive loading characteristics of LEDs. The driver should be able to quickly charge and then discharge the junction capacitance.A custom-made LED driver was built using an integrated MOSFET driver from IXYS RF (IXDD415SI) [3]. The components were soldered on single-sided Metal-Core Print-ed Circuit Board (Thermal Clad®) for better stability and performance due to good thermal conductivity (2.2 W/(m·K)) [4].In the visible range we achieved a minimum measured optical pulse Full Duration at Half Maximum of 8.42 ± 0.03 ns using non-phosphor white LED (American Opto Plus L-513NPWC-15D) pulsed at 1 MHz with 0.7 % duty cycle, and 32.08 ± 0.03 ns using white phosphor-converted LED (Nichia NSPW300BS) pulsed at 1 MHz with 0.7 % duty cycle. From measurements it can be shown that it’s possible to drive single color LEDs as high as 10 MHz with 10% duty cycle. In the infrared (IR) range we measured optical pulses FDHM of 20.52 ± 0.03 ns for 1020nm IR LED (LED1020-03), 22.92 ± 0.03 ns for 1050nm IR LED (LED1050-03) and 21.65 ± 0.03 ns for 1070nm IR LED (LED1070-03).

AB - Stroboscopic Scanning White Light Interferometry (SSWLI) utilizes a pulsed light source. SSWLI is often used in Quality Control of oscillating Micro-Electro-Mechanical Systems (MEMS). The operating frequency of typical MEMS-devices ranges from a few hertz up to several megahertz [1-2]. The usefulness of a stroboscopic light source de-pends on its capability to produce short and bright pulses of light. Light Emitting Diodes (LEDs) are advantageous as an stroboscopic light source due to their fast switching times, high efficiency and low cost. MOSFET drivers are suitable for driving LEDs due to the capacitive loading characteristics of LEDs. The driver should be able to quickly charge and then discharge the junction capacitance.A custom-made LED driver was built using an integrated MOSFET driver from IXYS RF (IXDD415SI) [3]. The components were soldered on single-sided Metal-Core Print-ed Circuit Board (Thermal Clad®) for better stability and performance due to good thermal conductivity (2.2 W/(m·K)) [4].In the visible range we achieved a minimum measured optical pulse Full Duration at Half Maximum of 8.42 ± 0.03 ns using non-phosphor white LED (American Opto Plus L-513NPWC-15D) pulsed at 1 MHz with 0.7 % duty cycle, and 32.08 ± 0.03 ns using white phosphor-converted LED (Nichia NSPW300BS) pulsed at 1 MHz with 0.7 % duty cycle. From measurements it can be shown that it’s possible to drive single color LEDs as high as 10 MHz with 10% duty cycle. In the infrared (IR) range we measured optical pulses FDHM of 20.52 ± 0.03 ns for 1020nm IR LED (LED1020-03), 22.92 ± 0.03 ns for 1050nm IR LED (LED1050-03) and 21.65 ± 0.03 ns for 1070nm IR LED (LED1070-03).

KW - 114 Physical sciences

M3 - Conference contribution

SP - 110

BT - Physics Days

ER -

Paulin T, Heikkinen V, Kassamakov IV, Haeggström E. IR LED PULSER FOR STROBOSCOPIC SWLI. julkaisussa Physics Days: The 46th annual meeting of the Finnish Physical Society, proceedings. 2012. s. 110