Next Article in Journal
Photomechanical Bending of Azobenzene-Based Photochromic Molecular Fibers
Next Article in Special Issue
Pushing the Limits of Electrical Detection of Ultralow Flows in Nanofluidic Channels
Previous Article in Journal / Special Issue
Microbeads for Sampling and Mixing in a Complex Sample
Open AccessArticle

Tunable Sensor Response by Voltage-Control in Biomimetic Hair Flow Sensors

MESA+ Institute for Nanotechnology, University of Twente, 7500 AE Enschede, The Netherlands
*
Author to whom correspondence should be addressed.
Micromachines 2013, 4(1), 116-127; https://doi.org/10.3390/mi4010116
Received: 13 December 2012 / Revised: 7 March 2013 / Accepted: 8 March 2013 / Published: 19 March 2013
We presented an overview of improvements in detection limit and responsivity of our biomimetic hair flow sensors by electrostatic spring-softening (ESS). Applying a DC-bias voltage to our capacitive flow sensors improves the responsively by up to 80% for flow signals at frequencies below the sensor’s resonance. Application of frequency matched AC-bias voltages allows for tunable filtering and selective gain up to 20 dB. Furthermore, the quality and fidelity of low frequency flow measurements can be improved using a non frequency-matched AC-bias voltage, resulting in a flow detection limit down to 5 mm/s at low (30 Hz) frequencies. The merits and applicability of the three methods are discussed. View Full-Text
Keywords: flow sensor; electrostatic spring softening; hair; cricket; biomimetics flow sensor; electrostatic spring softening; hair; cricket; biomimetics
Show Figures

Figure 1

MDPI and ACS Style

Droogendijk, H.; Bruinink, C.M.; Sanders, R.G.; Krijnen, G.J. Tunable Sensor Response by Voltage-Control in Biomimetic Hair Flow Sensors. Micromachines 2013, 4, 116-127.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

1
Only visits after 24 November 2015 are recorded.
Back to TopTop