Telemetria a basso costo per liquidi criogenici (tappo attivo per dewars)

Those scientific and industrial equipment that require a very low temperature cooling system to
operate often require continuous maintenance and constant control of the cryogenic liquid level. For
this reason, some plants are equipped with remote surveillance systems based on “ad hoc” developed
technologies for very low temperatures. We present a patented technical solution to be able to use,
in cryogenic conditions, a common ultrasound sensor that costs 4 euros. This cap for dewar tanks,
due to its particular shape, allows to obtain this result. Consequently, it also offers the possibility of
being able to use other low­cost technologies, such as the microcontrollers of the Arduino series. This
allows an unlimited range of developments ranging from remote monitoring to the total automation
of the ordinary maintenance of the cooling system. With this idea an “active cap” for Dewar was
created at very low cost. It monitors the level of liquid nitrogen and provides online measurements
updated in real time, the forecast of intervention for topping up and any alarm messages. A simple
upgrade can allow automatic refilling of the liquid in the dewar. This solution, for inexpensiveness,
can also represent an alternative to closed­circuit cooling and recycling systems.

Brevetti dell'INGV: http://istituto.ingv.it/it/attivita­di­ricerca/brevetti.html

INGV, Piano Triennale di Attività 2018\2020 (pag. 99): http://13.69.54.214/images/Triennali/
PTA_2018­2020_Volume1.pdf

Espacenet patent search (informazioni sulle invenzioni e sugli sviluppi tecnici dal 1782 ad oggi):
https://it.espacenet.com/publicationDetails/biblio?FT=D&date=20190915&DB=it.espacenet
.com&locale=it_IT&CC=IT&NR=201800003588A1&KC=A1&ND=4

Descrizione della soluzione tecnica relativa al brevetto INGV "IT201800003588 (A1) ­2019­09­15".