A precision cryostat with automatic temperature regulation

A Precision Analog Voltohmmeter with Automatic Ranging

A precision cryostat design for manual and semi-automated cryo-plunge instruments

Here we describe a bench-top cryostat system to control the temperature of liquid ethane in a cryo-plunge apparatus designed for biological specimen preparation for electron cryomicroscopy. It comprises a foam insulated Dewar containing a copper cryostat cup, whose temperature is controlled via an active feedback system to within 0.1 K. The device can easily be incorporated into existing manual...

A cryostat and temperature control system optimized for measuring relaxations of glass-forming liquids.

An experimental setup, including a cryostat and a temperature control system, has been constructed to meet the demands of measuring linear and nonlinear macroscopic relaxation properties of glass-forming liquids in the extremely viscous state approaching the glass transition. In order to be able to measure such frequency-dependent response functions accurately (including dielectric permittivity...

Initial Plan for a Precision Temperature Sensor

Precision microwave radiometry requires accurate internal calibration sources. A microwave terminator is one such internal source, and, under the assumption of a high quality match, produces a noise power directly proportional to the physical temperature of the terminator. Precise measurement of this temperature is required in order to provide a quality calibration standard. It is desirable for...

White Paper: An Automatic Test Method with Improved Precision for Wax Appearance Temperature (WAT) of Crude Oils

One such method, Differential Scanning Calorimetry (DSC), detects WAT by measuring the difference in heat absorbed or released between a reference sample and the test sample at a given cooling or warming rate. The WAT is detected by a deviation of experimental data from the reference baseline and typically requires a significant amount of wax formation for sensible detection. Consequently, it m...