ramé-hart
Goniometer / Tensiometers

The ramé-hart Goniometer/Tensiometer is built on the same foundation as the goniometer instruments, the legendary NRL goniometer of Dr. William Zisman. Each of Goniometer/Tensiometers offered by ramé-hart include

ramé-hart offers (4) different instruments for measuring contact angle, surface energy, and surface and interfacial tension.

• Model 250 Standard Goniometer/Tensiometer

• Model 290 Standard Automated Goniometer/Tensiometer (with Automated Tilting Base and Automated Dispensing System)

• Model 500 Advanced Goniometer/Tensiometer

• Model 590 Advanced Automated Goniometer/Tensiometer (with Automated Tilting Base and Automated Dispensing System)

If you are looking for a contact angle meter without surface tension, please visit the goniometer page.

ramé-hart Goniometer / Tensiometer Product Matrix (click here for the Goniometer Product Matrix)
Automated Instrument with Digital Camera and software
Includes High Speed F1 Series Digital CCD Camera
16" Optical Bench
21" Optical Bench
Measures Contact Angle, Surface Energy, Surface Tension, and Interfacial Tension
Measures Advancing and Receding Contact Angle, Roll-off Angle, and Contact Angle Hysteresis	**		**
Supports all available modular accessories
Standard Precision 3-Axis Stage with Leveling
Advanced Precision Graduated Heavy Duty 3-Axis Stage with fine and course vertical adjustment with modular leveling stage
Ships with DROPimage Advanced Software
Supports Environmental Chamber (p/n 100-07)
Supports Advanced Chamber (p/n 100-26-T/TH)
Supports Manual Tilting Base Option (p/n 100-25-M)
Supports Automated Tilting Base (p/n 100-25-A)
System includes the Automated Tilting Base (p/n 100-25-A) as standard equipment
Supports Environmental Fixture (p/n 100-07-60)
Supports Rotating Wafer Support up to 4" diameter (p/n 100-21-xx)
Supports Rotating Wafer Support up to 12" diameter (p/n 100-21-xx)
Supports Vacuum Chuck 6" or 8" (p/n 200-21-VCx)
Includes PC and LCD
Includes 1-year Parts and Labor Warranty and Priority Software Support
Supports the Automated Dispensing System (p/n 100-22)
System includes the Automated Dispensing System (p/n 100-22) as standard equipment
Supports Oscillator Option (p/n 100-28) for measuring surface dilatational elasticity and viscosity
**requires optional accessories

All (3) models ship with DROPimage Advanced software. This powerful program calculates surface and interfacial tension using a standard PC. The method used is based on the Young-Laplace equation and the program has been designed to handle pendant, inverted pendant, sessile, and captive bubble drops. DROPimage Advanced is methods-based allowing full control over every aspect of the experiment allowing for sophisticated dynamic and time-dependant studies. Results include surface tension, interfacial tension, contact angle, surface energies of solids, drop dimensions, volume and surface area, as well as surface dilatational elasticity and viscosity. Full control over the Automated Dispensing System and the Automated Tilting Base accessories is integrated into the software allowing them to be controlled via discrete controls or via a methods-based experiment. The Automated Dispensing System and the Automated Tilting Base are included with Model 290 but are sold separately with all other models including Model 250 and 500. DROPimage Advanced has all of the surface energy tools included with DROPimage Standard.

In addition to the goniometer/tensiometers, ramé-hart also sells a Digital Automated Surface (DAS) Tensiometer Model 710 which uses the Du Noüy-Padday Rod Pull Method.

For more information or a quotation, please contact us
or call 973-448-0305
©2010, ramé-hart instrument co. All rights reserved.