A Conversation for SEx - Science Explained
-
- 1
- 2
-
SEx: Candles, magnets and electricity
kea ~ Far out in the uncharted backwaters of the unfashionable end of the western spiral arm of the Galaxy lies a small, unregarded but very well read blue and white website Posted May 12, 2010
Any way of quantifying how long the charge would last?
SEx: Candles, magnets and electricity
scepticwoody Posted Jul 14, 2010
I was reading the thread and came across the candles and flames and electricity.
One of the safety features of modern commercial burners is that the flame is always monitored. If it goes out, the fuel is immediately cut off. There are two main methods of doing this. One is UV detection. The other is by flame ionisation detection.
A probe is positioned such that it will be in contact with the flame.
The probe is then given a potential of anything between 500 volts and 3000 volts. The burner is then lit and if a flame is present then a small current will be seen in the probe circuit. A current amplifier is used to boost the signal which can then be used for indication of a flame to the control system.
Key: Complain about this post
-
- 1
- 2
-
SEx: Candles, magnets and electricity
More Conversations for SEx - Science Explained
- Where can I find tardigrades? [26]
May 25, 2020 - SEx: Why does it hurt [19]
May 14, 2020 - SEx: Does freezing dead bodies kill any diseases they may have? [6]
Sep 12, 2019 - Is it going to be life in an artificial pond ? [4]
Sep 4, 2019 - SEx: What is the difference between a psychopath and a sociopath? [16]
Feb 18, 2019
Write an Entry
"The Hitchhiker's Guide to the Galaxy is a wholly remarkable book. It has been compiled and recompiled many times and under many different editorships. It contains contributions from countless numbers of travellers and researchers."