resist.cone: Calculate resistance of a truncated conical conductor

In breakage: SICM pipette tip geometry estimation

Description

Calculates the resistance of a truncated conical volume of material of known resistivity.

Usage

resist.cone(l, r1, r2, rho = 51)

Arguments

l	Length of the truncated cone, in microns.
r1	Radius of one end of the truncated cone, in microns.
r2	Radius of the other end of the truncated cone, in microns.
rho	Resistivity of the conductive material, in ohm centimetres. The default value of 51 ohm cm corresponds to a 150 mM solution of KCl.

Value

Calculated resistance, in ohms.

Note

A NaN result will be produced if r1==r2.

Author(s)

Matthew Caldwell

See Also

resist.access, resist.total, resist.breakage

Examples

# resistance of truncated conical segment 30 microns long, with end radii 50nm and 500nm
# filled with solution of resistivity 64 ohm cm
# converting result from ohms to megohms for readability
resist.cone(l=30, r1=0.05, r2=0.5, rho=64) * 1e-6

Example output

Loading required package: Imap
[1] 244.462

breakage documentation built on May 1, 2019, 11:30 p.m.