Tunable sensor response by voltage-control in biomimetic hair flow sensors

H. Droogendijk; Gijsbertus J.M. Krijnen

Tunable sensor response by voltage-control in biomimetic hair flow sensors

Research output: Contribution to conference › Paper

Abstract

We report improvements in detection limit and responsivity of biomimetic hair flow sensors by electrostatic spring-softening (ESS). Applying a DC-bias voltage to our capacitive flow sensors mediates large (80% and more) voltage-controlled electromechanical amplification of the flow signal for frequencies below the sensor's resonance. Application of an AC-bias voltage proves that tunable filtering and selective gain up to 20 dB can be achieved. Further, the quality and reliability of low frequency flow measurements can be improved using an AC-bias voltage.

Original language	Undefined
Number of pages	2
Publication status	Published - Oct 2012
Event	ICT.OPEN 2012 - World Trace Center, Rotterdam, Netherlands Duration: 22 Oct 2012 → 23 Oct 2012

Conference

Conference	ICT.OPEN 2012
Country	Netherlands
City	Rotterdam
Period	22/10/12 → 23/10/12

Keywords

Cricket
EWI-22454
Electrostatic spring softening
TST-Life like
IR-84147
Flow sensor
Hair

Access to Document

http://eprints.eemcs.utwente.nl/secure2/22454/01/abstract_HarmenDroogendijk_ICT_OPEN_2012.pdf

Cite this

Droogendijk, H., & Krijnen, G. J. M. (2012). Tunable sensor response by voltage-control in biomimetic hair flow sensors. Paper presented at ICT.OPEN 2012, Rotterdam, Netherlands.

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keywords = "Cricket, EWI-22454, Electrostatic spring softening, TST-Life like, IR-84147, Flow sensor, Hair",

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N2 - We report improvements in detection limit and responsivity of biomimetic hair flow sensors by electrostatic spring-softening (ESS). Applying a DC-bias voltage to our capacitive flow sensors mediates large (80% and more) voltage-controlled electromechanical amplification of the flow signal for frequencies below the sensor's resonance. Application of an AC-bias voltage proves that tunable filtering and selective gain up to 20 dB can be achieved. Further, the quality and reliability of low frequency flow measurements can be improved using an AC-bias voltage.

AB - We report improvements in detection limit and responsivity of biomimetic hair flow sensors by electrostatic spring-softening (ESS). Applying a DC-bias voltage to our capacitive flow sensors mediates large (80% and more) voltage-controlled electromechanical amplification of the flow signal for frequencies below the sensor's resonance. Application of an AC-bias voltage proves that tunable filtering and selective gain up to 20 dB can be achieved. Further, the quality and reliability of low frequency flow measurements can be improved using an AC-bias voltage.

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KW - EWI-22454

KW - Electrostatic spring softening

KW - TST-Life like

KW - IR-84147

KW - Flow sensor

KW - Hair

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