• Pre-vacuum monitoring
• High-vacuum control

With quantum computers, physicists hope to be able to simulate all processes occuring in nature e. g. the creation of the universe and life. However, they still face major technical challenges, as the quantum chips must be cooled down to temperatures close to absolute zero, meaning the components of a qunatum computer must withstand extreme sub-zero temperatures. To analyse these components, custom-developed measuring gauges with a low-temperature option are required.

For this purpose, the Linseis Messgeräte GmbH developed the Cryo-TMA, a measuring device for thermomechanical materials testing that can analyze the components of a quantum computer. At 4 Kelvin the Cryo-TMA reaches a temperature of -269.15 °C and thereby nearly the absolute point-zero. The measuring device is mainly used for material characterization in space simulation.

Requirements

A clean inert gas atmosphere is generated for the process. In this environment a powder bed-based melting process can take place without the risk of contamination from reactive gases present in the air, such as oxygen and carbon dioxide. The measuring chamber must be constantly evacuated to 1e-7 mbar.

Suitable Products

VSP63DL: The Pirani vacuum transmitter with an integrated display is used for monitoring the pre-vacuum. The process-controlled transmitter with a durable coiled filament is ideal for precise measurements in the fine vacuum range.

VSM77D: THigh-vacuum control in the measurement chamber is achieved using the VSM vacuum transducer, a combination of Pirani and cold cathode. The integrated Pirani sensor ensures that the cold cathode is only activated at low pressure, which protects the sensor and significantly extends its lifespan. The measurements from both transducers are transmitted and stored in the Linseis thermoanalyzer software via the 0-10 V interface.

Source: Linseis Messgeräte GmbH, more details: YouTube