TY - GEN
T1 - Pipette Based Viscometer with Pressure Sensor Element
AU - Cho, Sinwoo
AU - Nguyen, Thanh Vinh
AU - Miki, Norihisa
AU - Takahashi, Hidetoshi
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/1
Y1 - 2020/1
N2 - This paper reports a simple viscometer, whose principle utilizes the relationship between liquid viscosity and the suction speed in a tube. The proposed viscometer is composed of an air chamber and a glass tube. A steel ball is attached to the silicone membrane of the chamber and an electromagnetic magnet is used to provide the volume change. A MEMS pressure sensor element is attached to the chamber to measure its pressure change. When a step-response volume change is applied, the chamber pressure decreases so that the liquid sticking to the tube gradually ascends at a speed depending to the viscosity. Thus, the viscosity can be calculated by measuring the gradient of the pressure change. The proposed method can be applied to micropipettes so that viscosity is easily measured with a simple device.
AB - This paper reports a simple viscometer, whose principle utilizes the relationship between liquid viscosity and the suction speed in a tube. The proposed viscometer is composed of an air chamber and a glass tube. A steel ball is attached to the silicone membrane of the chamber and an electromagnetic magnet is used to provide the volume change. A MEMS pressure sensor element is attached to the chamber to measure its pressure change. When a step-response volume change is applied, the chamber pressure decreases so that the liquid sticking to the tube gradually ascends at a speed depending to the viscosity. Thus, the viscosity can be calculated by measuring the gradient of the pressure change. The proposed method can be applied to micropipettes so that viscosity is easily measured with a simple device.
KW - Pipette
KW - Pressure sensor
KW - Viscometer
UR - http://www.scopus.com/inward/record.url?scp=85083221135&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083221135&partnerID=8YFLogxK
U2 - 10.1109/MEMS46641.2020.9056273
DO - 10.1109/MEMS46641.2020.9056273
M3 - Conference contribution
AN - SCOPUS:85083221135
T3 - Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
SP - 646
EP - 648
BT - 33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2020
Y2 - 18 January 2020 through 22 January 2020
ER -