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Table of Contents
Summary of Contents for Frankfurt Laser Company MDK
- Page 1 VALUATION IT FOR ETHANE ETECTION NSTRUCTION ANUAL rev. 250516...
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Page 2: Table Of Contents
Application Packaging arrangement Operation conditions Brief overview of the components included Recommended operation mode for the kit Operation instructions Precautions Appendices Appendix 1: Lms34LED main parameters Appendix 2: Lms36PD-05 main parameters Appendix 3: Drivers Applicable for the MDK Evaluation Kit... -
Page 3: General Information
GENERAL INFORMATION Application MDK is an evaluation kit for CH detection based on mid-infrared LED-PD optopair, which includes all the needed components for quick and simple start. The possibility to change the parts within the kit easily makes the kit a flexible and utility solution. -
Page 4: Brief Overview Of The Components Included
BRIEF OVERVIEW OF THE COMPONENTS INCLUDED Light-emitting diode Light-emitting diode Lms34LED-RW – LMSNT light-emitting diode with 3.4 µm peak wavelength, in TO-18 package with a parabolic reflector. Main LED parameters are pointed in Appendix 1. For detailed information and set of characteristics please refer to the appropriate technical passport. -
Page 5: Recommended Operation Mode For The Kit
RECOMMENDED OPERATION MODE FOR THE KIT Driver settings (for D-41i/D-51i models) LED current I, A 0.2-1 Pulse duration τ, µs 10-20 Frequency f, kHz SDM synchronous detector settings Signal gain times Averaging time... -
Page 6: Operation Instructions
OPERATION INSTRUCTIONS Connect the preamplifier output with an input of SDM synchronous detector. synchronous detector signal input terminal block SDM synchronous photodiode with a built-in detector preamplifier Green cord – to the signal input “+”; Yellow cord – to the signal input “0” Connect a 5V power output of the SDM synchronous detector to the preamplifier power input. - Page 7 OPERATION INSTRUCTIONS Connect the LED pins to the LED connection terminal block of the LED driver. D-51i LED driver LED connection terminal block Note! All driver connections in this manual are pointed for D-51i LED driver; connections with other drivers should be done similarly. CAUTION! The pin with red dot must be connected to the “+”...
- Page 8 OPERATION INSTRUCTIONS Connect signal output terminal block of the SDM synchronous detector with signal observing device (multimeter, oscillograph or PC via ADC). oscilloscope signal output terminal block synchronous detector Connect a 12V DC stabilised power supply to the LED driver and SDM synchronous detector (red wire to the “+”;...
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Page 9: Precautions
PRECAUTIONS & NOTES Turn on the power supply of the LED Driver and SDM synchronous detector only after all connections are made and tested. Do not switch driver regimes during operation. Do not use multimeter to control and adjust current of the LED. Do not bend and/or twist LED and photodiode pins;... -
Page 10: Appendix 1: Lms34Led Main Parameters
APPENDIX 1 Lms34LED Main Parameters (QCW operation mode, f=0.5 kHz, T=300 K) Ratings Parameters Units Conditions m Peak emission wavelength T=300 K, I = 150 mA qCW 3,30 3,40 3,49 FWHM of the emission band I = 150 mA qCW W Quasi-CW Optical Power I = 200 mA qCW... -
Page 11: Appendix 2: Lms36Pd-05 Main Parameters
APPENDIX 2 Lms36PD-05 Main Parameters (T=300 K) Photodiode Conditions Symbol Value Units Parameters Cut-off wavelength T=300 K λ Max. sensitivity T=300 K λ 2.2 ― 3.4 wavelength (>90%) Dark current T=300 K, Vr=-0,1 V 0.5 ― 1 Shunt resistance T=300 K, Vr=-10 mV 0.2 ―... -
Page 12: Appendix 3: Drivers Applicable For The Mdk Evaluation Kit
APPENDIX 3 Drivers Applicable for the MDK Evaluation Kit LED driver D-41i D-41i Driver provides Pulse mode operation. Using this mode it is possible to choose one of five current values (0.2/0.6/1/1.5/1.9 A) and select one of four frequencies (0.5/1/2/4 kHz) and choose pulse duration within five values (5/10/20/50/150 µs).
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