# US 10,768,134 B2 · Device for determining the parameters of strip-type superconductors

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- Number: US 10,768,134 B2
- Document ID: US10768134B2
- Status: Granted
- Kind: B2
- Application number: 16/315,950
- Filed: 2017-07-07
- Published: 2019-05-16
- Granted: 2020-09-08
- Earliest claimed: 2016-07-07
- Assignees: State Atomic Energy Corporation "Rosatom" On Behalf of the Russian Federation
- Applicants: State Atomic Energy Corporation “Rosatom” On Behalf of the Russian Federation
- Inventors: Arnol'd Leonidovich Bortnyanskiy
- Web page: https://patentgrep.com/patent/US10768134B2

## CPC

- G01N 27/023: {where the material is placed in the field of a coil}
- G01N 27/14: of an electrically-heated body in dependence upon change of temperature
- H01F 6/06: Coils, e.g. winding, insulating, terminating or casing arrangements therefor
- H02H 9/023: {Current limitation using superconducting elements}
- H10N 60/00: Superconducting devices (integrated devices or assemblies of multiple devices H10N69/00)
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H02H: EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R31/00, G08B; locating faults along lines G01R31/08; emergency protective devices H01H)
- H10N: ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR

## Abstract

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.

## Claims

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1, 2)

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.

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 1)

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%.