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Capacitive sensor - coupling with circuit
Posted 2013年5月17日 GMT-4 11:07 RF & Microwave Engineering Version 4.3a 2 Replies
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Hello,
I build a small model of a capacitive sensor (small conducting plate). An electric dipole serves as the source of an electric field.
The field induces a surface current density at the sensor plate. But i cannot figure out how i couple this current with an attached circuit (see attached figure of circuit).
I tried lumped ports (electrical circuit module) and terminals (electric currents module), and coupled those with an external I vs U node.
But since the sensor only has one contact (one node, see figure) I don't think lumped ports and external I vs Us are approriate.
Would be nice if someone could give me a hint. Thanks.
I build a small model of a capacitive sensor (small conducting plate). An electric dipole serves as the source of an electric field.
The field induces a surface current density at the sensor plate. But i cannot figure out how i couple this current with an attached circuit (see attached figure of circuit).
I tried lumped ports (electrical circuit module) and terminals (electric currents module), and coupled those with an external I vs U node.
But since the sensor only has one contact (one node, see figure) I don't think lumped ports and external I vs Us are approriate.
Would be nice if someone could give me a hint. Thanks.
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2 Replies Last Post 2013年5月18日 GMT-4 06:41