Analytical Instrument Facility

Drop Shape Analyzer

(DSA 100E)
Instruments Details
Make & Model
Software-controlled x-, y- and z-axes
Software-controlled focus and zoom setting (7-times)
measurement of Contact angle Surface, free energy of solids Interface and surface tension of liquids
Operating temperature
:10 to 40 °C
For contact angle measurement
:Resolution: 0.01° ,Acxcuracy: 0.3°
For surface tension measurement
:Range: 0.01 to 2000 mN/m,
Resolution: 0.01 mN/m,
Accuracy: 0.3 mN/m
Working Principles

When an interface exists between a liquid and a solid, the angle between the surface of the liquid and the outline of the contact surface is described as the contact angle θ (lower case theta). The contact angle (wetting angle) is a measure of the wettability of a solid by a liquid. Wetting describes the degree to which a liquid spreads on a solid when it comes into contact with it.


Characterization of surface pre-treatment processes Investigation of the adhesion and stability of bonding and coating processes
Testing of the wettability of plastic, glass, ceramic, paper, wood or metal
Quality control for wafers and microelectronics Testing of surface cleanliness
Analyses in accordance with a large number of international standards

Contact Person
Mr. Vijay Kr Meena
Email Id : vijaykumar@csio.res.in
Features of the Instrument

Software-controlled x- and y-axis and software-controlled lift table (z-axis)
Lens with software-controlled zoom and focus adjustment
Software-controlled quadruple dosing unit, expandable for up to eight liquids
Camera with 1200 × 800 px at 200 fps to 90 × 60 px at 2000 fps resolution
Very bright, homgenous LED illumination
Viewing angle adjustment with stable image height
Software for measuring contact angle, surface free energy of solids and surface tension of liquids

Charges with GST Extra

Surface Tension Measurement of (High Viscosity fluid)Rs. 1150per sample
Contact Angle Measurement of (High Viscosity Fluid)Rs. 1150per sample
Surface Free Energy (SFE)Rs. 950per sample
Surface Tension Measurement (ST)Rs. 750per sample
Contact Angle MeasurementRs. 750per sample

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