ats rheosystems and reologica instruments are comprhensive instumentation and technical support companies specializing in rheometer and viscometer design, research level rheometers and rheology, rheological consulting, viscometers and viscosity measurements, real-time light and thermal cure profiling, low and high pressure rheology measurement, dynamic shear rheometers (dsr) for asphalt testing according to aashto t315-04, dynamic mechanic thermal analysis (dmta), and materials characterization instrumentation.ats rheosystems also provides third party technical service and support, applications training, test method development, contract testing, and rheology consulting services. our vocation is strictly rheology!