Capacitance change value [closed]
1
$begingroup$
I have a problem with the capacitance value change in bus with some wires when I touch it by hand.
I don't know if the change is because of the leakage current and how to solve this problem to have the fix capacitance value.
capacitor
edited Feb 13 at 13:29
Electric_90
1,208218
asked Feb 13 at 11:51
AshkanAshkan
61
$endgroup$
closed as unclear what you're asking by Dmitry Grigoryev, Edgar Brown, Sparky256, Finbarr, JYelton Feb 15 at 20:37
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
add a comment |
1
$begingroup$
I have a problem with the capacitance value change in bus with some wires when I touch it by hand.
I don't know if the change is because of the leakage current and how to solve this problem to have the fix capacitance value.
capacitor
edited Feb 13 at 13:29
Electric_90
1,208218
asked Feb 13 at 11:51
AshkanAshkan
61
$endgroup$
closed as unclear what you're asking by Dmitry Grigoryev, Edgar Brown, Sparky256, Finbarr, JYelton Feb 15 at 20:37
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
$begingroup$
What is the sensor or impedance , and signal characteristics on the wires?
$endgroup$
– Sunnyskyguy EE75
Feb 13 at 14:14
$begingroup$
What is the problem that you are trying to fix? What effect does the changing capacitance have on the operation of your circuit?
$endgroup$
– Justin
Feb 13 at 15:53
add a comment |
1
1
1
$begingroup$
I have a problem with the capacitance value change in bus with some wires when I touch it by hand.
I don't know if the change is because of the leakage current and how to solve this problem to have the fix capacitance value.
capacitor
edited Feb 13 at 13:29
Electric_90
1,208218
asked Feb 13 at 11:51
AshkanAshkan
61
$endgroup$
I have a problem with the capacitance value change in bus with some wires when I touch it by hand.
I don't know if the change is because of the leakage current and how to solve this problem to have the fix capacitance value.
capacitor
capacitor
edited Feb 13 at 13:29
Electric_90
1,208218
asked Feb 13 at 11:51
AshkanAshkan
61
edited Feb 13 at 13:29
Electric_90
1,208218
asked Feb 13 at 11:51
AshkanAshkan
61
edited Feb 13 at 13:29
Electric_90
1,208218
edited Feb 13 at 13:29
Electric_90
1,208218
edited Feb 13 at 13:29
Electric_90
1,208218
1,208218
asked Feb 13 at 11:51
AshkanAshkan
61
asked Feb 13 at 11:51
AshkanAshkan
61
asked Feb 13 at 11:51
AshkanAshkan
61
61
closed as unclear what you're asking by Dmitry Grigoryev, Edgar Brown, Sparky256, Finbarr, JYelton Feb 15 at 20:37
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
closed as unclear what you're asking by Dmitry Grigoryev, Edgar Brown, Sparky256, Finbarr, JYelton Feb 15 at 20:37
Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.
$begingroup$
What is the sensor or impedance , and signal characteristics on the wires?
$endgroup$
– Sunnyskyguy EE75
Feb 13 at 14:14
$begingroup$
What is the problem that you are trying to fix? What effect does the changing capacitance have on the operation of your circuit?
$endgroup$
– Justin
Feb 13 at 15:53
add a comment |
$begingroup$
What is the sensor or impedance , and signal characteristics on the wires?
$endgroup$
– Sunnyskyguy EE75
Feb 13 at 14:14
$begingroup$
What is the problem that you are trying to fix? What effect does the changing capacitance have on the operation of your circuit?
$endgroup$
– Justin
Feb 13 at 15:53
$begingroup$
What is the sensor or impedance , and signal characteristics on the wires?
$endgroup$
– Sunnyskyguy EE75
Feb 13 at 14:14
$begingroup$
What is the sensor or impedance , and signal characteristics on the wires?
$endgroup$
– Sunnyskyguy EE75
Feb 13 at 14:14
$begingroup$
What is the problem that you are trying to fix? What effect does the changing capacitance have on the operation of your circuit?
$endgroup$
– Justin
Feb 13 at 15:53
$begingroup$
What is the problem that you are trying to fix? What effect does the changing capacitance have on the operation of your circuit?
$endgroup$
– Justin
Feb 13 at 15:53
add a comment |
1 Answer
1
active
oldest
votes
5
$begingroup$
The capacitance of an unshielded conductor will change as you move other conductors (like a hand) near it. You can prevent the change of capacitance by shielding them with a grounded conductor that is fixed in position.
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
$endgroup$
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
5
$begingroup$
The capacitance of an unshielded conductor will change as you move other conductors (like a hand) near it. You can prevent the change of capacitance by shielding them with a grounded conductor that is fixed in position.
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
$endgroup$
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
add a comment |
5
$begingroup$
The capacitance of an unshielded conductor will change as you move other conductors (like a hand) near it. You can prevent the change of capacitance by shielding them with a grounded conductor that is fixed in position.
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
$endgroup$
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
add a comment |
5
5
5
$begingroup$
The capacitance of an unshielded conductor will change as you move other conductors (like a hand) near it. You can prevent the change of capacitance by shielding them with a grounded conductor that is fixed in position.
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
$endgroup$
The capacitance of an unshielded conductor will change as you move other conductors (like a hand) near it. You can prevent the change of capacitance by shielding them with a grounded conductor that is fixed in position.
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
answered Feb 13 at 12:24
Neil_UKNeil_UK
76.4k282172
76.4k282172
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
add a comment |
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Thanks a lot. this bus is used on cloth on wearable sensors with some sensors and four wires(about 50 cm length). I have used the isolated wires to keep the capacitance constant when it is wet. could you please help me how i can add the grounded conductor to solve the problem with the capacitance value change in contact with other conductors?
$endgroup$
– Ashkan
Feb 14 at 14:59
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Instead of individual wires, use coax, something like RG178, which is small, cheap and readily obtainable. Ground the outer, use the inner as your conductor. This will prevent the capacitance varying with position, wet, anything. However, this will result in significantly increased capacitance. That's the price you pay, small and variable, or larger and fixed.
$endgroup$
– Neil_UK
Feb 14 at 16:12
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
Actually we have problem on sewing section and we need to use Ultra thin insulated connecting wire that is also slippery enough for sewing the wire. Is there any other sugestion that after sewing the wires on the tape do the shielding part to have more stable capacitance values?
$endgroup$
– Ashkan
Feb 15 at 10:29
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
'need to use ultra thin ...' Shielding consists of another flat conductor over and under the wire. Depending on your need for thin wire, if you can't tolerate RG178, you certainly won't be able to tolerate a strip of alli foil above and below. What is the precise application? Why does the variable capacitance matter? There may be alternative solutions.
$endgroup$
– Neil_UK
Feb 15 at 10:34
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
$begingroup$
the capacitance will effect on signal of the wires that will receive by the other side. My aim is to reduce the effect of the leakage current of capacitances during the wires to the signals.
$endgroup$
– Ashkan
Feb 15 at 13:20
add a comment |
$begingroup$
What is the sensor or impedance , and signal characteristics on the wires?
$endgroup$
– Sunnyskyguy EE75
Feb 13 at 14:14
$begingroup$
What is the problem that you are trying to fix? What effect does the changing capacitance have on the operation of your circuit?
$endgroup$
– Justin
Feb 13 at 15:53