I think I posted this to the wrong thread. I was at the airport during the
flight call. It was intended for the "Semiconductor Cryo Level thread".
My apologies. Hard day.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Anthony Cesaroni
Sent: Tuesday, September 15, 2015 10:17 AM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Disadvantages
We use radar with cryo liquids and it works like a champ. Compact and very
accurate.
Anthony.
Sent from my iPhone
On Sep 15, 2015, at 9:33 AM, Bill Claybaugh <wclaybaugh2@xxxxxxxxxx>wrote:
design for low cost in both cases--higher costs.
Some other disadvantages of liquids are lower reliability and--given
depletion. A solid burns nearly all its propellant, though some of it tends
Nice idea, however.
Bill
Sent from my Commodore 64
On Sep 14, 2015, at 5:14 PM, Ben Brockert <wikkit@xxxxxxxxx> wrote:
One of the few disadvantages liquids have over solids is propellant
tanks. A rod is inside and electrically insulated from a tube that is open
Centaur accomplishes this with capacitive sensors in the propellant
extract structures and mass to hold up the tube and wire, and keep them
One downside of this system is that it is analog and it requires some
(LEDs) change their emission wavelength when they are cooled to cryogenic
Cryo and electronics geeks know that some types of light emitting diodes
of an IR LED mechanically coupled to an IR transistor. The two components
An optocoupler is a solid state semiconductor device essentially composed
cryogenic tank, with them turned on all the time. It would consume just a
Background complete. You could make a chain of optocouplers inside a
depletion rate of the propellant in the tank and adjust mixture ratio
By watching the timing as the sensors toggle, you can then measure the
sensors, where sensors that get warmer are above the liquid level. But I
There is a similar concept with small heaters coupled to temperature
So that's my idea of the afternoon.
Ben