Zu-yao Chang

Research interests

Impedance measurement


Zu-yao Chang received his M.Sc. degree in Electrical Engineering from the Delft University of Technology, Delft, The Netherlands, in 2003. Since 2003 he has been a staff member of the Electronic Instrumentation Laboratory of Delft University of Technology, Delft, The Netherlands, doing research on impedance-measurement systems and smart sensor system.



Electronic Instrumentation Laboratory
Delft University of Technology
Faculty of Electrical Engineering, Mathematics and Computer Science
Department of Micro-electronics and Computer Engineering
Mekelweg 4
2628 CD Delft
The Netherlands

Room: HB 15.080

Phone: +31 (0)15 27 81163

Fax: +31 (0)15 27 85755

Email: This email address is being protected from spambots. You need JavaScript enabled to view it.


Journal Papers

  1. Gheorghe A. Pop, Zu-yao Chang, Cornelis J. Slager, Bert-Jan Kooij, Elza D. van Deel, Liviu Moraru, Jan Quak, Gerard C. Meijer, Dirk J. Duncker, “Catheter-based impedance measurements in the right atrium for continuously monitoring hematocrit and estimating blood viscosity changes; an in vivo feasibility study in swine”, Biosensors & Bioelectronics, 2004, Vol 19(12):1685-1693.
  2. G.A.M. Pop, T.L.M. de Backer, M. de Jong, P.C. Struijk, L. Moraru, Z. Chang, H.G. Goovaerts, C.J. Slager, A.J.J.C. Bogers, “On-line electrical impedance measurement for monitoring blood viscosity during on-pump heart surgery”, European Surgical Research, 2004, 36:259-265.
  3. Zu-yao Chang; Iliev, B.P.; de Groot, J.F.; Meijer, G.C.M., “Extending the Limits of a Capacitive Soil-Water-Content Measurement”, Instrumentation and Measurement, IEEE Transactions on, Volume: 56 , Issue: 6.
  4. Zu-yao Chang; Pop, G.A.M.; Meijer, G.C.M., “A Comparison of Two- and Four-Electrode Techniques to Characterize Blood Impedance for the Frequency Range of 100 Hz to 100 MHz”, Biomedical Engineering, IEEE Transactions on, Volume: 55, Issue: 3.
  5. Zili Yu; Blaak, S.; Zu-yao Chang; Jiajian Yao; Bosch, J.G.; Prins, C.; LanceĢe, C.T.; De Jong, N.; Pertijs, M.A.P.; Meijer, G.C.M., “Front-end receiver electronics for a matrix transducer for 3-D transesophageal echocardiography”, Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on, Volume: 59 , Issue: 7.
  6. Judith Staginus, Isabelle M. Aerts, Zu-yao Chang, Gerard C.M. Meijer, Louis C.P.M. de Smet, Ernst J.R. Sudhölter, "Capacitive response of PDMS-coated IDE platforms directly exposed to aqueous solutions containing volatile organic compounds", Sensors and Actuators B: Chemical, Volume 184, 31 July 2013, Pages 130-142.

Conference Papers

  1. Zu-yao Chang; Iliev, B.P.; de Groot, J.F.; Meijer, G.C.M., “Extending the Limits of a Capacitive Soil-Water-Content Measurement”, Instrumentation and Measurement Technology Conference, 2005. IMTC 2005. Proceedings of the IEEE.
  2. Zu-yao Chang; Iliev, B.P.; Meijer, G.C.M., “A Sensor Interface System for Measuring the Impedance (Cx, Rx) of Soil at a Signal Frequency of 20MHz”, Sensors, 2007 IEEE.
  3. Shalmany, S.H.; Merz, M.; Fekri, A.; Chang, Z.; Hoofman, R.; Pertijs, M.A.P., "A 7μW pH-to-digital converter for quality monitoring of perishable products", Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS & EUROSENSORS XXVII), 2013 Transducers & Eurosensors XXVII: The 17th International Conference on , vol., no., pp.1747,1750, 16-20 June 2013.