electronicsensation
Newbie level 6
- Joined
- Jan 6, 2014
- Messages
- 13
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1
- Location
- Rugby, UK
- Activity points
- 90
Hi,
I am working on a magnetic susceptibility sensor to interface it to our existing electronics board.
The original system consists of a loop (through which we pass specimen) and a meter which powers the loop and receives pulses of certain frequency (depends upon specimen). This meter powers the loop and receives pulses just by using 2 wires i.e. there are no signal wires in addition to power cable. When the loop is not connected, voltage is about 10.1V dc but when loop is connected, i can observe sharp drops to zero volts every 1.76ms (when there is no specimen through the loop).
My questions are:
1. Is this a Phantom powered loop?
2. when I hotplug the system to power supply, it blows power supply fuse due to the fact that loop sends very high frequency pulses and effectively shorts power supply terminals but settles down after a short duration. any ideas to resolve this issue?
https://obrazki.elektroda.pl/6013979900_1389023773.jpg
Thanks!
I am working on a magnetic susceptibility sensor to interface it to our existing electronics board.
The original system consists of a loop (through which we pass specimen) and a meter which powers the loop and receives pulses of certain frequency (depends upon specimen). This meter powers the loop and receives pulses just by using 2 wires i.e. there are no signal wires in addition to power cable. When the loop is not connected, voltage is about 10.1V dc but when loop is connected, i can observe sharp drops to zero volts every 1.76ms (when there is no specimen through the loop).
My questions are:
1. Is this a Phantom powered loop?
2. when I hotplug the system to power supply, it blows power supply fuse due to the fact that loop sends very high frequency pulses and effectively shorts power supply terminals but settles down after a short duration. any ideas to resolve this issue?
https://obrazki.elektroda.pl/6013979900_1389023773.jpg
Thanks!