Device for determining the parameters of strip-type superconductors
View Patent ↗A device for determining the parameters of strip-type superconductors includes a generator, a generator frequency-setting element, an inductance coil connected to the generator, a receiver, a receiver frequency-setting element, and an inductance coil connected to the receiver. The generator and receiver frequency-setting elements are same type narrow-band elements. The pass bands of the generator and receiver frequency-setting elements coincide through at least half of the bandwidth of the frequency-setting element having a narrower band pass width. The generator and receiver inductance coils are arranged with a gap between the same, making it possible for a strip-type superconductor to be placed between the inductance coils. The device is provided with a temperature sensor comprising a thermistor in contact with the superconductor. The device enables highly accurate and reproducible measurement results.
1. A device for determining the parameters of strip-type superconductors, comprising:
a generator, a generator frequency-setting element and an inductance coil connected to the generator, and
a receiver, a receiver frequency-setting element and an inductance coil connected to the receiver,
a reservoir with a cryogenic agent and temperature measurement device used as a thermistor,
wherein the generator and receiver inductance coils are arranged with a gap between the same, making it possible for a strip-type superconductor to be placed between the inductance coils,
the pass/stop bands of the generator and receiver frequency-setting elements coincide through not less than at least half of the pass/stop bands of the frequency-setting element having a narrower pass/stop band width.
2. The device according to claim 1 , wherein the inductance coils of the device for determining the parameters of strip-type superconductors and the temperature sensor are arranged in the reservoir with the cryogenic agent.
3. The device according to claim 1 or 2 , wherein the inductance coils are arranged at a distance of at least 30 mm above the cryogenic agent surface.
4. The device according to claim 1 , wherein the band centers of the pass/stop bands of the generator and receiver frequency-setting elements are frequency spaced by a value in the range of 1% to 10% or in the range of 0.5% to 1% of the pass/stop band width of the frequency-setting element having a narrower pass band width.
5. The device according to claim 1 , wherein the generator and receiver frequency-setting elements have characteristics differing by a value in the relative range of 1% to 10% or in the perfect range of 0.5% to 1%.