Electricity: measuring and testing – Testing potential in specific environment – Voltage probe
Patent
1998-04-03
1999-12-21
Strecker, Gerard
Electricity: measuring and testing
Testing potential in specific environment
Voltage probe
324248, 324260, 330 61R, 343767, 505846, 505855, 505865, 327528, H03F 1900, H01Q 1300, G01R 2908, G01R 33035
Patent
active
060053801
ABSTRACT:
A magnetic field sensor which can be used as an active antenna is disclosed that is capable of small size, ultrawideband operation, and high efficiency. The sensor includes a multiplicity of magnetic field transducers, e.g., superconducting quantum interference devices (SQUIDs) or Mach-Zehnder modulators, that are electrically coupled in a serial array. Dummy SQUIDs may be used about the perimeter of the SQUID array, and electrically coupled to the active SQUIDs for eliminating edge effects that otherwise would occur because of the currents that flow within the SQUIDs. Either a magnetic flux transformer which collects the magnetic flux and distributes the flux to the transducers or a feedback assembly (bias circuit) or both may be used for increasing the sensitivity and linear dynamic range of the antenna.
REFERENCES:
patent: 4091327 (1978-05-01), Larsen et al.
patent: 4454522 (1984-06-01), de Lozanne
patent: 4638257 (1987-01-01), McDonald
patent: 4724390 (1988-02-01), Rauscher et al.
patent: 4814706 (1989-03-01), Rempt
patent: 4904940 (1990-02-01), Rempt
patent: 4906929 (1990-03-01), Rempt
patent: 5134117 (1992-07-01), DiLorio et al.
patent: 5187327 (1993-02-01), Ohta et al.
patent: 5194807 (1993-03-01), Ueda
patent: 5326986 (1994-07-01), Miller, Jr. et al.
patent: 5331162 (1994-07-01), Silver et al.
patent: 5373383 (1994-12-01), LaGasse
patent: 5420100 (1995-05-01), Vittoria et al.
patent: 5467015 (1995-11-01), Gotoh
patent: 5600242 (1997-02-01), Hubbell
patent: 5844407 (1998-12-01), Hubbell
R. Welty, et al., "A Series Array of DC Squids," IEEE Transactions on Magnetics, vol. 27, No. 2, Mar. 1991, pp. 2924-2929.
S. Wolf, et al., "Superconducting Extremely Low Frequency (ELF) Magnetic Field Sensors for Submarine Communications;" IEEE Trans. On Communications, vol. com-22, No. 4, Apr. 1974, pp. 549-554.
J. Davis, et al., "Development of a Superconducting ELF Receiving Antenna," IEEE Trans, on Antennas and Propagation, vol. AP-25, No., 2, Mar. 1977, pp. 223-231.
M. Nisenoff, "The Use of SQUIDs in Low-Frequency Communication Systems," AIP Conf. Proc., vol. 44, 1978, pp. 117-129.
K. Stawiasz, et al., "Noise Measurements of Series SQUID Arrays," IEEE Trans. on Applied Superconductivity, vol. 3, No. 1, Mar. 1993, pp. 1808-1811.
R. Hansen, "Fundamental Limitations in Antennas," Proc. of the IEEE, vol. 69, No. 2, Feb. 1981, pp. 170-182.
R. Dinger, et al., "Adaptive Methods for Motion-Noise Compensation in Extremely Low Frequency Submarine Receiving Antennas," Proc. of the IEEE, vol. 64, No. 10, Oct. 1976, pp. 1504-1511.
Welty et al., "Two-Stage Intergrated SQUID Amplifier With Series Array Output", NIST Cryoelectronics, manuscript received Aug. 24, 1992.
Welker et al., "A Superconductive H-Field Antenna System" Laboratory for Physical Sciences, College Park, Maryland (journal and publication date unknown) pp. 183-187.
Hammar John C.
Strecker Gerard
The Boeing Company
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