Ive seen a device similar to the SER being marketed by another instrument manufacturer. Whats the difference between the SER and this other fixture?
A. This answer requires a brief background… Development of the SER technology first began in 1997 with the pioneering work of Dr. Martin Sentmanat at the Goodyear Tire & Rubber Company in Akron, OH. This revolutionary dual wind-up drum rheometer technology was patented by Goodyear and later licensed exclusively to Xpansion Instruments, LLC. Since its introduction back in 2003, the SER has generated a tremendous amount of interest not only in the global rheological community but in the physical material characterization community as well. In 2004, another instrument manufacturer looking to capitalize on the breakthrough success of the SER launched an imitation technology similar in appearance to the original model SER-HV and began marketing the device as an extensional viscosity fixture for an ARES rotational rheometer. Although this imitation technology has the identical drum dimensions, securing means, and sample geometry of the original model SER-HV, it has serious shortcomings and
