discovery hybrid rheometers temperature systems ... - TA Instruments

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KnobSecondary CoilATC SensorLower PlateMicro PCBPrimary CoilGeometry Heat SpreaderATC Sensing & Control PointUpper PlateSampleFeatures and Benefits• Unique Smart Swap technology• Wide temperature range: -30 °C* to 150 °C• Eliminates vertical temperature gradients• Patented heat spreader technology for optimum heat transfer• Substantially reduces thermal equilibrium time• Compatible with all Peltier Plate models• Patented Active Temperature Control** for significant temperaturecontrol advantages:--Only active temperature measurement and control of non-contactheating system available--Temperature known rather than inferred--No need for offset calibrations and tables--True temperature ramp capability up to 15 °C per minute--Faster temperature response compared to traditional non-contactsystems• Includes sample trimming and plate removal tools• Gas purge port and environment cover• Disposable Plate system available for reactive systems• Compatible with Peltier liquid cooling, circulator, or gas coolingoptions*With appropriate cooling device**Not available with disposable platesActive Temperature Control Technology (ATC)Patented Active Temperature Control (ATC) provides non-contact temperature sensing for active measurement and control of the upper testing surface. A Platinum Resistance Thermometer (PRT) is housed withinthe special ATC draw rod. This PRT is positioned in intimate contact with the center of the upper measurement surface. The temperature signal is transmitted to a micro PCB in the knob, from which the temperaturereading is transmitted through a non-contact mechanism to the rheometer head assembly. This temperature reading enables direct control of the actual upper plate temperature. Because the upper platetemperature is measured and controlled directly, the system has many advantages over traditional systems. The advantages of ATC include: more responsive temperature control, no vertical temperature gradients,and no need for inferring actual temperature from complex calibration procedures and offset tables. Together with the PRT in the lower plate, real-time control of both plates allows temperature to be changed atboth surfaces at the same rate for true temperature ramp profiles.NOTE: Active Temperature Control (ATC) is available for Upper Heated Plate (UHP) and Electrically Heated Plate (EHP) temperature systems.Upper Heated Plate13
UHP and ATCTEMPERATURE PERFORMANCESilicone Oil Viscosity Standard Response toTemperature changes in UHP10.00Material response exactly followstemperature profile110.0100.0UHP and ATC Temperature PerformanceThe true test of any rheometer temperature control system is to comparesample response to the reported system temperature. This evaluation isespecially important for a combined lower Peltier device with intimatecontact heating and an upper non-contact heating device. In this situation,the top plate heats more slowly than the bottom plate. Because the topand bottom plates heat at different rates, the sample temperature differsgreatly from the reported system temperature. In competitive systems,the sample response lags the temperature profile, requiring the user todetermine system-based thermal equilibration times and program longdelays. This issue is eliminated with TA’s unique UHP and ATC technologies,by continuously controlling and matching the upper and lower platetemperatures. This accurate response is demonstrated in the followingfigures with simple oscillation time sweep measurements.The Silicone Oil Viscosity Standard in the top figure shows that the complexviscosity response exactly follows the reported temperature profile, provingthat there is no lag between set-point and real sample temperature. Asimilar test is shown for a sample of Asphalt binder which, according tofederal standards, cannot be tested until temperature is fully equilibratedto within 0.1 °C of the set point. The asphalt data show that as soon asthe temperature is within 0.1 °C, the viscosity of the asphalt binder is fullyequilibrated and no change is seen in the viscosity even after 20 additionalminutes.By matching upper and lower temperature and heating rates, and activelycontrolling the upper plate with patented technology, TA provides the mostadvanced and accurate non-contact heating technology.|η*| (Pa.s)Temperature (˚C)1.0000.100090.080.070.060.050.040.060.0 65.0 70.0 75.0 80.0 85.0 90.0 95.0 100.0 105.07.6 min84.9 ˚Ctime (min)Asphalt Binder Response to Temperature Change in UHP90.080.070.060.050.01.000E61.000E5100001000Temperature (˚C)|η*| (Pa.s)30.07.6 min19.17 Pa.s17.8 min19.30 Pa.s27.7 min19.27 Pa.s100.020.010.000 5.0 10.0 15.0 20.0 25.0 30.0time (min)14
Page 5 and 6: peltier plateTEMPERATURE SYSTEMSCom
Page 7 and 8: peltier plateTECHNOLOGY80 mm Diamet
Page 9 and 10: peltier plateGEOMETRIESSmart Swap P
Page 11 and 12: peltier plateACCESSORIESWater at 40
Page 13: upper heated plateTEMPERATURE SYSTE
Page 17 and 18: peltier concentric cylinderTEMPERAT
Page 19 and 20: concentric cylinderACCESSORIES AND
Page 21 and 22: concentric cylinderACCESSORIESTorsi
Page 23 and 24: pressure cellACCESSORYPressure Cell
Page 25 and 26: electrorheologyACCESSORYElectrorheo
Page 27 and 28: 26electrically heated plateTEMPERAT
Page 29 and 30: ETC ovenENVIRONMENTAL TEST CHAMBERE
Page 31 and 32: ETCGEOMETRIESETC Geometry Accessory
Page 33 and 34: ETC and EHPPOLYMER APPLICATIONSThem
Page 35 and 36: dielectric measurementACCESSORYBNC
Page 37 and 38: interfacial rheologyACCESSORIESInte
Page 39 and 40: small angle light scatteringACCESSO
Page 41 and 42: UV curingACCESSORIESUV Curing Acces
Page 43 and 44: starch pasting cellACCESSORYLocking
Page 45 and 46: tribo-rheometryACCESSORYTribologyTr
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