Instrumentation and nano-sensors

 

Micro-machined sensors

 

• Network of hanging hot-spot anemometers (~10 microns resolution)
• Network of micro-thermometers / anemometers on various organic ribbons (down to 50 microns resolutions)
• Micro-cantilever anemometers (few 100 microns resolutions, operation down to 0K)
• Micron-sized suspended thermometers (NbN, ...)
• Miniature second-sound tweezers for superfluid vortex detections (kHz bandwidth, sub-mmm resolution)
• Array of second-sound sensors for remote mapping of vortex distribution
• ...

 

Hand-made sensors and instrumentation

 

• FPGA-based high-bandwdith high-dynamics CTA anemometer electronics (on-going development)
• Fast-response miniature Pitot anemometer (5-kHz-bandwidth, 1-mm resolution)
• Hand-made micro-hot-wires (MHz bandwidth, few microns resolution)
• High resolution Cryogenic thermocouple (3 microK uncertainty)
• Cryogenic helium flowmeter
• High resolution helium densimetry at cryogenic temperature (1e-7 resolution and stability)
• Cryogenic electronics developments (amplifier and opto-electronics at 0-10K)
• ...

 

Simulations of sensor response

 

• Cold-wire time response
• Angle-of-attack dependence on hot-spot anemometer
• ...

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