Why resistance varies with frequency when measuring resistance with an LCR meter?

[nanolab]

I'm trying to measure the resistance of device I made using 4282A. Function is R-X mode, and I'm trying to measure its resistance. But when I change the frequency, the resistance of device also change. What is the reason of this phenomenon? Can you explain in detail to me?

[altenbach]

You did not describe the "device" you made, but if it contains any kind of circuit (e.g. filtering or similar), the resistance will be frequency dependent, of course.

[santo_13]

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@nanolab wrote:

I'm trying to measure the resistance of device I made using 4282A. Function is R-X mode, and I'm trying to measure its resistance. But when I change the frequency, the resistance of device also change. What is the reason of this phenomenon? Can you explain in detail to me?

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If the measured resistance varies with frequency, then it means that the device is not a purely resistive device. In real life, almost every resistor has L and C components accompanying it.