Membrane Time Constant
Compute the passive membrane time constant tau = R x C, converting megaohm-microfarads (seconds) to milliseconds.
Description
Compute the passive membrane time constant tau = R x C, converting megaohm-microfarads (seconds) to milliseconds.
Membrane Time Constant is a focused biology tool that compute the passive membrane time constant tau = R x C, converting megaohm-microfarads (seconds) to milliseconds. It calculates locally from the values you enter and exposes the result without changing the source observations.1
When to use Membrane Time Constant
Use Membrane Time Constant when you need to compute the passive membrane time constant tau = R x C, converting megaohm-microfarads (seconds) to milliseconds. Enter Membrane resistance and Membrane capacitance using the definitions and units below so the result can be reproduced.
- Membrane resistance
- Membrane resistance in megaohms; must be greater than zero.
- Membrane capacitance
- Membrane capacitance in microfarads; must be greater than zero.
How Membrane Time Constant calculates the result
The published tool contract uses this rule: Compute the passive membrane time constant tau = R x C, converting megaohm-microfarads (seconds) to milliseconds.
- Time constant
- Membrane time constant in milliseconds.
Limitations of Membrane Time Constant
The calculation does not propagate measurement uncertainty, sampling error, or biological and chemical variability.
Alternative or Complementary measurements
Retain the original Membrane resistance and Membrane capacitance values and their units alongside the result. Specific Membrane Capacitance is useful when you instead need to compute specific membrane capacitance in microfarads per square centimetre as total membrane capacitance divided by membrane area. Doubling Time (PDT) provides another view by helping you calculate population doubling time as elapsed hours times ln(2), divided by ln(final count / initial count).
References
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Time constant — Wikipedia contributors
Similar or alternative tools
- Specific Membrane Capacitance
Compute specific membrane capacitance in microfarads per square centimetre as total membrane capacitance divided by membrane area.
- Doubling Time (PDT)
Calculate population doubling time as elapsed hours times ln(2), divided by ln(final count / initial count).
- CMS Percent
Compute cell membrane stability as a percentage by comparing the control conductivity ratio to the treated conductivity ratio, control divided by treated times one hundred, clamped to the range zero through one hundred.