Photonics for High-End Gas Analysis - Gasera Ltd.
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Transcript of Photonics for High-End Gas Analysis - Gasera Ltd.
Photonics for High-End Gas Analysis Dr. Ismo Kauppinen, CEO
17. May 2016 OPD, Tampere
WHY HIGH-END GAS ANALYSIS?
• Key drivers for growing gas analysis need currently are:
1. Air pollution 2. Global warming 3. Safety and security
• Two of the above focus on harmful gases for peoples health in the breathing air
• Concentrations of the harmful gases and greenhouse gases are very low, thus high-end detection analysis is required
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Founded in Dec. 2004
33 employees Turnover 2015
2,5 M€ (70% growth, profitable)
Consor&ummember:- 9FP7EU-projects- 1Horizon2020
University spin-off
GASERA FACTS
Own patented technology
POTENTIAL MARKETS
Safety & Security Food
Gas Manufacturing
Semiconductor
CEMS
Medical
Air Quality
AgricultureProcess control
Power utility
Automotive
Research Petrochem
Basedonseveralmarketstudiesthees&matedsizeofglobalgasdetec&onmarketis$5billion,wheretheSafetyandSecuritysegmentises&matedtobe$1,4billionUSDalone.Theglobalairqualitymonitoringequipmentmarketisexpectedtoreach$6,1billionby2019.
NEAR FUTURE INDUSTRIAL FOCUS MARKETS
Stack Emissions
Clean Air Power Utility Automotive emissions
Technology platforms
Patented sensor
Industrial partners
ROADMAP
Idea hand-held analyzers
2001 2007 2008 2011 2002
Patent filing
2004
Company founded
1. Prototype
2006 1st Investment
1st product
2009 2010 2005 2003 2012 2013 2014 2015 2016 2017 2018 2019 2020
Research
Industry
Well-being, Environment, Safety & Security
personal analyzers
Preserving life
Power, Energy, Environment
portable analyzers
MINIGAS
CUSTOM MUSE
DOGGIES Collaborative EU-projects
2021 2022 2023 2024
OEMs to Industrial markets
Feasibility
IRON
PHOTOACOUSTIC SPECTROSCOPY
• Photoacoustic effect was discovered in 1880 by Alexander Graham Bell
• This theoretical potential has not been reached, since conventional microphones have been used for sensing the pressure pulses
• Gasera’s novel cantilever sensor technology allows the use of the full potential of the photoacoustic phenomena
Photoacoustic spectroscopy is based on the absorption of light leading to the local warming of the absorbing volume element. The subsequent expansion of the volume element generates a pressure wave proportional to the absorbed energy, which can be detected via a pressure detector.
PHOTOACOUSTIC GAS CELL IR SOURCE
MICROPHONE
IR FILTER
CHOPPER
A typical setup of a conventional PAS system
GAS SAMPLE
GASERA’S KEY INVENTIONS
• Cantilever sensor • Over 100 times greater physical movement can be achieved
compared to conventional microphone membrane • Highly linear response
• Optical readout system • Contactless optical measurement based on laser interferometry • Measures cantilever displacements smaller than picometer (10-12 m) • Extremely wide dynamic measurement range
PLATFORMS
1
2
3
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LASER PAS Reliable and cost effective gas analyzer products with down to ppb/ppt sensitivity in safety and industrial applications. Widely tunable lasers in MIR range enable multi-gas monitoring capabilities.
NDIR PAS Enables sensitive gas analyzer for multi-gas monitoring in industrial applications such as transformer condition monitoring, waste anesthetic gases and agriculture.
FTIR PAS Measures the full IR spectrum of the sample gas mixture and compares the result to library spectra of pure compounds. Enables sensitive and selective portable/hand-held gas analyzers for real-time simultaneous monitoring of over 50 gas compounds. Suitable for CEMS. process control and AQ.
DIFFERENTIAL PAS Enables a small and cost effective single or dual gas sensor with extremely high sensitivity and selectivity for fast open path measurements with response time below 0.1 seconds. Highly suitable e.g. for gas flux measurements, breath diagnostics, and tail pipe measurements
BENEFITS OF CANTILEVER ENHANCED PAS
stability,reliability,easytouse Absorp&onismeasureddirectlyinPAS,whichmakesthemeasurementveryaccurateandfreeofdriP
belowppbdetec;onlimits Can&leversensorprovideshighsensi&vity
widelineardynamicrange,miniaturiza;on,lowsamplevolume Sensi&vityisnotdependentontheop&calpathlength
mul;-gascapability Manydifferentsourcescanbeconnectedtoonecell
suitabletowiderangeofprocessapplica;ons Possibilitytoheatthesamplecell
PRODUCTS
GAS ANALYZERS
• Multi-gas • One platform configurable
to different applications
RESEARCH SYSTEMS • Research PAS cell • Can be combined with
different types of light sources
• Includes data acquisition software
FTIR ACCESSORIES • Measures solid, semi-solid
and liquid samples • 100x faster compared to
other alternatives • Measures samples where
conventional techniques fail
GASERA ONE
Multi-Gas Analyzer to protect life, health and security
CONCEPT
• Sensitivity – Patented cantilever sensor
• Reliability – Photoacoustic principle • Versatility – can be combined with different
types of light sources (NIR-TDL, DFB-QCL, EC-QCL, OPO, Broadband IR and filters)
APPLICATIONS
LIFE Climate change prevention • Greenhouse gas
monitoring at animal husbandry
• GHGs from soil emissions
HEALTH Air quality for living and occupational safety • Detection of
hazardous chemicals at industrial sites and in cargo containers
SECURITY Border security, prevention of smuggling and human trafficking • Narcotics • Explosives • Hidden persons
Source selection by application requirements
TRACE HF MONITORING IN CLEAN ROOMS
Monitoring of clean room indoor air
HF monitoring
ClearlyobservablespikingwhenlidsareopenResponse&meoftheinstrumentis18secondsApprox.0.5ppbdetec&onlimit@18secresponse&meBackgroundlevelisverystable
HF + NH3 monitoring
SimultaneousMeasurementoftwocompoundsTwodifferentlasersourcescombinedwithonephotoacous&cmeasurementcell
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SHIP EMISSIONS MONITORING Detection of ships using illegal higher sulphur level fuel
PROBLEMS WITH CURRENT TECHNOLOGIES • Different gases are detected with different technologies
• SO2, UV-fluorescence • CO2, Infrared • NO2, Chemiluminescence • CH4, Infrared
• Different analyzer is required for every gas compound • Air monitoring station with multiple expensive analyzers
and costly maintenance -> therefore the number of stations is limited
• Already single analyzers are expensive • Different technologies have different sources for
uncertainty
FEASIBILITY PROJECT (HyperGlobal, TEKES) • Measured performance for the main component (SO2)
• Simulated results for future components
Gascompound Integra;on;me Detec;onlimit
SO21s 3.2ppb
60s 0.5ppb
Gascompound Integra;on;me Detec;onlimit
NO2 10s 0.2ppb
CH4 10s 0.5ppb
BORDER SECURITY Detecting drugs and explosives
Drugs and Explosives
• Headspace measurement with external cavity quantum cascade laser source EC-QCL
• Different drugs with different composition and purity level were measured
• Measurements were performed in cooperation with INPS France (Institut national de police scientifique)
OCCUPATIONAL SAFETY Hazardous chemicals in cargo container
CARGO CONTAINER INSPECTION
• Currently about 20-30% of tested cargo arriving to major destination ports is identified to contain chemical air concentrations exceeding Occupational Exposure Limits (OEL).
• Requires simultaneous measurement of over 20 compounds with ppb-level sensitivity.
• Most important fumigation compounds are Methyl bromide and Phosphine
• Other off-gassing compounds include: BTEX, Formaldehyde, Acetaldehyde etc.
CONCEPT
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INDOOR AIR QUALITY
Analysis of damaged floor coverings emissions
2-EH Detection
• In some cases, the coverings are installed on wet concrete on purpose to avoid contractual penalties due to delays in construction projects
• The emissions of the damaged coverings often lead to several, mostly irritational symptoms.
• O,1 ppb detection limit @ 1 min compares to
what is achieved with current laboratory meaurements, which are time consuming and expensive.
CONTACT AND FOLLOW
• Tykistökatu 4D 20520 Turku Finland
• [email protected] • [email protected] • www.gasera.fi
• www.facebook.com/gaseraltd
• www.youtube.com/gaseraltd
• https://www.linkedin.com/company/gasera-ltd-