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Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method
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Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

Measuring the Interaction Force Between a Droplet and a Super-hydrophobic Substrate by the Optical Lever Method

DOI:
10.3791/59539-v

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07:18 min

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June 14, 2019

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, , , , ,
1State Key Laboratory of Precision Measuring Technology and Instruments,Tianjin University

Capitoli

  • 00:04Titolo
  • 00:55Elements of the Interaction Force Measurement System
  • 01:32Calibration of the Optical Lever
  • 03:13Measurement of the Interaction Force between Droplets and Super-hydrophobic Substrates
  • 05:41Results: Measured Interaction Forces between Droplets and Super-hydrophobic Substrates as a Function of Time
  • 06:38Conclusion

Summary

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The protocol aims to investigate the interaction between droplets and super-hydrophobic substrates in the air. This includes calibrating the measurement system and measuring the interaction force at super-hydrophobic substrates with different grid fractions.

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Optical Lever MethodSuperhydrophobic SubstrateDroplet Interaction ForceMicro-newton Force MeasurementNanopositioning Z StageSilicon CantileverHigh-speed CameraLaserPosition Sensitive DetectorCapacitance GradientDC Power SupplyPlate ElectrodeData AcquisitionVoltage Variation

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