New Versatile AC Resistance Bridge/Ultra-Low Temperature Controller Available from Lake Shore

Model 372 simplifies temperature measurement and precise control in ultra-low temperature environments

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Model 372 AC resistance bridge and temperature controller

The Model 372 features noise rejection technology and is and designed for measuring below 100 mK.

On the Model 372, a balanced noise-rejecting AC current source with an extremely low input noise figure ensures that external signals have no path to ground through the measurement circuit. This way, no unwanted noise energy passes through the sensor.

Columbus, OH (PRWEB) September 03, 2014

Lake Shore Cryotronics, a leading innovator in solutions for measurement over a wide range of temperature and magnetic field conditions, announced today that its new Model 372 AC resistance bridge and temperature controller is now available for order.

The Model 372 makes it easy to perform multiple tasks that were once very difficult to perform reliably at very low temperatures, including temperature measurement, automatic and manual temperature control, and device or sample impedance measurements. It features patented noise-rejection technology that ensures stable, reliable measurements, and a dedicated input designed specifically for continuous cryogenic temperature control.

Ideal for ultra-low temperature applications, the Model 372 is designed to minimize the amount of energy needed to take measurements.

“Measuring in the sub-1 K range is far from easy,” Lake Shore Product Manager Ryan Oliver said. “The smallest amounts of added energy can lead to self-heating and unwanted temperature shifts. But on the Model 372, a balanced noise-rejecting AC current source with an extremely low input noise figure ensures that external signals have no path to ground through the measurement circuit. This way, no unwanted noise energy passes through the sensor.”

Extremely accurate and reliable temperature measurements can be achieved by combining the Model 372 with a negative temperature coefficient (NTC) resistive temperature device (RTD), such as the Lake Shore Cernox™, Rox™ or germanium temperature sensors. Multiple calibration curves can be uploaded to the instrument, enabling instant conversion of sensor resistance to temperature.

The Model 372 can also be used for precise control in sub-100 mK dilution or adiabatic demagnetization refrigerator applications. Its dedicated control input is designed to continuously monitor the refrigerator’s sample holder temperature. The 3726 scanner option can then be used to scan through other sensors within the refrigerator. The Model 372 also has three heater outputs, including sample, still and warm-up heaters. PID control enables the setting of both fixed temperature setpoints and ramp rates, and different PID values can be set for different temperature zones within a refrigerator.

The Model 372 also offers advanced impedance measurement capabilities, including quadrature measurement for identifying reactive components of a load. When paired with the 3708 scanner, the input noise is further reduced to deliver even higher measurement resolutions than is possible with the Model 372 alone. This makes the Model 372/3708 combo the ideal choice for low-power cryogenic material characterization activities.

For ease of use, the Model 372 features a streamlined front-panel keypad interface, a customizable front display, and intuitive configuration and monitoring software. The instrument supports Ethernet, USB and IEEE-488.2 connectivity, and features monitor and frequency reference outputs for direct connection to external devices or equipment.

For more information on the Model 372, as well as Lake Shore’s complete line of temperature controllers, monitors and cryogenic sensors, visit http://www.lakeshore.com.

About Lake Shore Cryotronics, Inc.
Supporting advanced research since 1968, Lake Shore (http://www.lakeshore.com) is a leading innovator in measurement and control solutions for materials characterization under extreme temperature and magnetic field conditions. High-performance product solutions from Lake Shore include cryogenic temperature sensors and instrumentation, magnetic test and measurement systems, probe stations, and precision materials characterizations systems that explore the electronic and magnetic properties of next-generation materials. Lake Shore serves an international base of research customers at leading university, government, aerospace, and commercial research institutions and is supported by a global network of sales and service facilities.


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  • Michele Nichols
    PLS Launch Solutions
    +1 (585) 256-1640
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