My pyrex tube is grounded and the source meter to sweep the voltage is connected with + to probe - to the tube flange. Common ground is the table. I still get double probe characteristic. Am I missing something?
2006-12-14 04:50:29 · 2 answers · asked by Nikki 1 in Science & Mathematics ➔ Physics
Pyrex, like most glass, has extremely low conductivity, so grounding it does little more than prevent any static charge buildup. You don't say what your are probing, but try to be sure you are measuring only the phenomenon you want to measure, and especially not the sweep signal itself. If your probe signal is electrical, make sure the wires are twisted and shielded to minimize noise pickup.
2006-12-15 12:58:52 · answer #1 · answered by Frank N 7 · 0⤊ 0⤋
U may not have a ground and I have found that ground is not ground in the desert there is not enough water present to have conduction. U can have no ground in an area where it rains a lot . In Ecuador in the mountains in the high jungle there wasn't enough minerals in the rain water even in the soil to conduct current. U may need to use the power co ground as they connect it at almost every pole.
Good luck
2006-12-14 05:03:16 · answer #2 · answered by JOHNNIE B 7 · 0⤊ 0⤋