Jim Zimmerman and the SQUID

  title={Jim Zimmerman and the SQUID},
  author={Richard L. Kautz},
  journal={IEEE Transactions on Applied Superconductivity},
  • R. Kautz
  • Published 1 March 2001
  • Physics
  • IEEE Transactions on Applied Superconductivity
The career of Jim Zimmerman, beginning with a solid foundation in electronics and cryogenics, reached a turning point in 1965 when he became coinventor of the rf SQUID (Superconducting QUantum Interference Device), while working at the Scientific Laboratory of the Ford Motor Company in Dearborn, Michigan. Recognizing the exquisite sensitivity of the SQUID as an amplifier and magnetometer, Zimmerman devoted the remainder of his career, at Ford and later at the National Bureau of Standards, to… 
A Review of Fetal ECG Signal Processing; Issues and Promising Directions.
A range of promising recording and signal processing techniques for fetal ECG analysis that have been developed over the last forty years are reviewed, and both their shortcomings and advantages are discussed.


Evolution of the SQUID and its Use in Biomagnetic Research
With benefit of several decades of hindsight, I think London’s hypothesis, that superconductivity is a state characterized by long-range phase coherence, must have required great intellectual
Lock-On Magnetometer Utilizing a Superconclucting Sensor
A magnetometer utilizing a superconducting quantum interference device (SQUID) as a magnetic flux sensor is described. Its unique capabilities include: sensitivity of about an order of magnitude
Macroscopic Quantum Interference Effects through Superconducting Point Contacts
A small-area contact between two pieces of superconducting metal or alloy is a remarkably sensitive and convenient device for demonstrating long-range quantum interference effects. It has been shown
Magnetoencephalography: Detection of the Brain's Electrical Activity with a Superconducting Magnetometer
The abnormal MEG, including a measurenment of the direct-current component, suggests that the MEG may yield some information which is new and different from that provided by the EEG.
A Comparison of Three Types of Pulse Tube Refrigerators: New Methods for Reaching 60K
Pulse tube or thermoacoustic refrigerators require only one moving part—an oscillating piston or diaphragm at room temperature. Refrigeration occurs within a tube connected to the pressure wave
Heat Conduction in Alloys at Low Temperatures
With a view to studying the mechanism of heat conduction in low conductivity alloys, a method has been devised by which the thermal conductivity of relatively small samples (⅛‐ to ¼‐inch diameter, 1
Mechanical Analogs of Time Dependent Josephson Phenomena
The pendulum analog of a small-area Josephson junction between two superconductors is coupled to the analogs of other circuit elements to demonstrate a variety of time dependent phenomena observed
Design and Operation of Stable rf‐Biased Superconducting Point‐Contact Quantum Devices, and a Note on the Properties of Perfectly Clean Metal Contacts
Point‐contact devices are described which have exhibited long‐term stability and reliability. A particular mode of operation of the devices as rf‐biased low‐frequency detectors is described in
Operation of a Y-Ba-Cu-O rf SQUID at 81 K
An rf superconducting quantum interference device (SQUID) has been made from bulk Y‐Ba‐Cu‐O. The device displays quantum interference effects and operates with useful signal levels up to 81 K. The