Dr Wilson Ombati Nyang'au

I have worked as a metrologist at KEBS for about 13 years; and, I have been in charge of Mass Laboratory Section for the past three (3) years. Moreover, through my doctoral studies in Electrical Engineering, I gained over four years management and research experience, in which I supervised students working under my project and successfully designed, developed and implemented a novel scientific measurement instrument, as evident from my research publications. Consequently, this has enhanced my research proficiency, project management, and problem-solving skills, and expanded the scope of my research, metrology knowledge-base, and quality management.
I possess broad-based metrology skills, including mass metrology, temperature, pressure, force, AC/DC to medical calibration. I have an excellent mastery metrological fundamentals and concepts, and often participated as a trainer in various measurement programs, and as a Technical Assessor for KENAS in the field of Mass Metrology. My work experience at KEBS also involves the maintenance and implementation of laboratory quality management system (based on ISO 17025); reviewing, developing and implementing quality documents and calibration methods/procedures; testing and evaluation of measuring equipment such as mass standards, weighing instruments, and moisture-content determination instruments.

• IOP Publishing (Online).Mar – Apr
• Understanding and evaluating measurement uncertainty
• National Physical Laboratory (NPL), UK
• (Online).Jul
• Biomedical calibration
• Cairo University/ MTRH & KNH.May
• Introduction to MatLab
• University of Tartu (Online).Oct 3 – Nov 13
• Measurement Uncertainty Estimation in Analytical Chemistry
• University of Tartu (Online).Apr 6 – May 17
• Measurement Uncertainties
• KENAS, Nairobi.Feb 11–13
• Method Validation
• KENAS, Nairobi
• Feb 9 – 11
• Root Cause Analysis
• KEBS, NQI, Nairobi
• Sep 29 – 30
• Trainers of Trainers Course (ToT)
• KEBS, NQI, Naivasha
• Aug 24 – 26
• Advanced mass metrology
• NIST, Maryland, USA.Oct 26 – Nov 5
• Radiotracer analysis using rig flow
• KEBS/ IAEA, Nairobi
• Oct 27 – 28
• Determination of density of mass standards
• KEBS, Nairobi
• Nov 3 – 7
• Internal Quality Audits (ISO 9001)
• KEBS, NQI, Nairobi
• Mar 19 – 21
• Basic mass metrology course
• NIST, Maryland, USA
• May 13 – 24
• Industrial attachment in Mass metrology
• NIM, Beijing, China
• Mar 24–Apr 25
• Laboratory QMS (ISO 17025: 2005)
• BIS, New Delhi, India
• Feb 18 – Mar 8
• Fundamentals of Metrology course
• NIST, Maryland, USA.Aug 20 – 24
• Implementation of the competence requirements in testing & calibration (ISO 17025)
• KEBS, NQI, Nairobi.20-24/06
• Theory and practice in Temperature Calibration
• KEBS, Nairobi
• May 9 – 13
• Implementation of QMS (ISO 9001:2008)
• NQI, KEBS.Apr 18 – 20
• International Examinations Online Professional Development course in IGCSE Physics (0625)
• University of Cambridge (Online).Mar – Sep
• Laser Science and Applications course
• JKUAT/ AICAD, Nairobi
• Apr 6 – 9
• PROFESSIONAL Workshops, Seminars & Conferences participated
• Workshop/Seminar/Conference
• Organizer/Institution/Venue
• Date
• EAC Regional Metrology Seminar
• Dar es Salaam, ArushaJune 19-23
• The International System of Units (SI) in FAIR digital data
• BIPM (Online).Feb 22-26
• International Summer School on Metrology on “Precision Experiments in Theory and Application”
• TUBS, Germany (Online).Sep 7 – 10
• International Summer School on Metrology on “Prospects of Quantum Metrology”
• B-IGSM/Drübeck, Germany.Aug 5 – 8
• International Summer School on Metrology on the “Fundamental Constants and the New SI”
• B-IGSM/Drübeck, Germany.Aug 8 – 10
• 4th Regional Laboratory Immersion Programme
• LUMS, PakistanDec 17 – 22
• 8th Regional Metrology Seminar on “Measurements for Research and Technological Advancement”
• KEBS/ Flamingo Beach Hotel, Mombasa, Kenya.Dec 7 – 9
• International School of Physics ‘Enrico Fermi’ on “Metrology: From physics fundamentals to quality of life”
• Italian Physics Society/BIPM/INRIM, Varenna, Italy.Jun 29 – Jul 6
• Workshop on “Round and ready – dissemination of the kilogram via Si spheres”
• PTB, Braunschweig, Germany.Jun 22-23
• 6th Africa International Metrology Conference
• CAFMET/ Dakar, Senegal.Mar 21– 24
• 7th Regional Metrology Seminar on “Measurements for sustainable industrial development”
• KEBS/Nyali Beach International Hotel, Mombasa.Dec 3 – 5
• 22nd National Metrology Seminar
• KEBS/ Mombasa, Kenya.Dec 4 – 6
• National Metrology Seminar on “Quality measurements for sustainable national development”
• KEBS/Whitesands Hotel, Mombasa.Dec 7 – 9
• 5th Scientific, Technological and Industrialization Conference
• JKUAT/ AICAD, Nairobi
• Nov 17 – 19
• Workshop on “Delivering Good Quality Telecommunication Service in a Safe Environment”
• ITU/ Intercontinental Hotel, Nairobi, Kenya.Jul 26 – 31
• TAD Regional Astronomy Workshop
• Meridian Court, Nairobi.Nov 9 –13 leadership & management TRAININGS & qualifications
• Workshop/Seminar/Conference
• Organizer/Institution/Venue
• Date
• HR for Non-HR
• HR Dimensions/MombasaAug 21-25
• Mentorship and Coaching
• Phowad Solutions Ltd/ Athi River, Kenya.Aug 1-5
• Senior Management Course (SMC)
• Kenya School of Government (KSG), Mombasa Campus.Jul 4-29
• Increase your employability with a PhD
• TUBS, Germany (Online).Oct 14
• Agile: Transforming teams & projects
• TUBS, Germany (Online).Sep 17-18
• Scientific presentations.

• D1. Publications in Refereed Scientific Journals:
• Osoro BO, Ndegwa R, Nyang’au WO, and Gwaro JO 2023. Identification of Microplastics in Plastic Bottled Drinking Water Using Laser-Induced Breakdown Spectroscopy (LIBS) and Raman Spectroscopy. Asian Journal of Research and Reviews in Physics 7 (2), 15-24.
• Fahrbach M, Xu M, Nyang’au W O, Domanov O, Schwalb C H, Li Z, Kuhlmann C, Brand U and Peiner E. 2023. Damped Cantilever Microprobes for High-Speed Contact Metrology with 3D Surface Topography. Sensors 23 (4), 2003.
• Nyang’au W O, Kahmann T, Viereck T and Peiner E 2021 MEMS-Based Cantilever Sensor for Simultaneous Measurement of Mass and Magnetic Moment of Magnetic Particles. Chemosensors 9(8): 207. doi: 10.3390/chemosensors9080207.
• Nyang'au W O, Setiono A, Schmidt A, Bosse H, Peiner E 2020 Sampling and mass detection of a countable number of microparticles using on-cantilever imprinting. Sensors, 20(9):2508. doi:10.3390/s20092508.
• Setiono A, Bertke M, Nyang'au W O et al 2020 In-plane and out-of-plane MEMS piezoresistive cantilever sensors for nanoparticle mass detection. Sensors 20(3): 618. doi:10.3390/s20030618.
• Nyang’au W O, et al. 2019 Cantilever-droplet-based sensing of magnetic particle concentrations in liquids. Sensors 19 (21):4758. doi:10.3390/s19214758. Ren X P, Wang J, Zhang Y and Ombati W 2014 Calibration of weights and weight sets based on micro-mass standard measurement system. KEM 609-610, 1473–7. doi: 10.4028/www.scientific.net/KEM.609-610.1473.
• Ombati W, Kinyua R, Mutuku J and Ogongo C 2011 Monitoring of radiofrequency radiation from selected mobile telephones in Kenya. Baraton Interdisciplinary Research Journal 1 (1): 5–13. D2. Publications in Conference Proceedings: Fahrbach M, Nyang’au W O, Domanov O, Schwalb C H, Xu M, Li Z, Kuhlmann C, Brand U and Peiner E. Damped silicon micro probes for high-speed roughness measurements. MikroSystemTechnik Congress 2021. Print ISBN:978-3-8007-5656-8. Setiono A, Nyang’au W O, Fahrbach M, Xu J, Bertke M, Wasisto H S and Peiner E 2021 Enhancement of unsteady frequency responses of electro-thermal resonance MEMS cantilever sensors. J. Phys.: Conf. Ser. 1837, 12003. doi:10.1088/1742-6596/1837/1/012003. Puranto P, Zhang Q, Nyang’au W O, Langfahl-Klabes J, Thiesler J, Zackaria M, Li Z, Wasisto H S, Peiner E and Brand U 2021 Influence of eccentric nanoindentation on top surface of silicon micropillar arrays. J. Phys.: Conf. Ser. 1837 12008. doi:10.1088/1742-6596/1837/1/012008. Nyang’au W O, et al. 2019 Droplet-on-cantilever approach for determining the mass of magnetic particles. 20. GMA/ITG-Fachtagung Sensoren und Messsysteme 2019 (Nürnberg, Germany, June 25-26, 2019). doi: 10.5162/sensoren2019/3.2.1.
• Nyang’au W O, et al. 2019 Adsorption and detection of microparticles using silicon microcantilevers. J. Phys.: Conf. Ser. 1319 12010. doi:10.1088

• Member, KEBS Metrology Seminars/Conferences Organizing Committee: 2022 – to-date.
• Church Elder, Kahawa Sukari SDA Church: 2023 – to date.
• Member, Board of Management, B-IGSM, Germany: 2019 – 2020.
• Member, Board of Management, Bonyunyu DOK Primary School, Kisii, Kenya: 2015 – 2017.
• Member, Metrology Seminars/Conferences Organizing Committee: 2015-2016. Member, Braunschweig International Graduate School of Metrology (B-IGSM): 2017 – to-date
• Member, Physics Society of Kenya (Membership No. 031): 2012 – to-date.
• Member, JKUAT Society of Physicists (JSP): 2008 – to-date.