Magnetoresistive sensors for surveillance and remote sensing

Yacine Dalichaouch; Alexander R. Perry; Brian W. Whitecotton; Charles R. Moeller; Peter V. Czipott

doi:10.1117/12.417555

21 February 2001 Magnetoresistive sensors for surveillance and remote sensing

Yacine Dalichaouch, Alexander R. Perry, Brian W. Whitecotton, Charles R. Moeller, Peter V. Czipott

Proceedings Volume 4232, Enabling Technologies for Law Enforcement and Security; (2001) https://doi.org/10.1117/12.417555
Event: Enabling Technologies for Law Enforcement, 2000, Boston, MA, United States

Abstract

Quantum Magnetics (QM) has developed a sensing array using small and lightweight magnetoresistive (MR) sensors. These sensors, which operate at room temperature with high sensitivity and wide bandwidth, provide new operational performance capabilities. The wide bandwidth makes them ideal for both passive and active detection techniques. Using a DSP-based electronics developed by QM, we have been able to operate these sensors with an unprecedented noise performance at low frequencies. Recent tests using an MR room temperature gradiometer show that its resolution equals that of a fluxgate room-temperature gradiometer we have previously developed. These results represent an important development for both attended and unattended ground sensor applications since MR sensors cost about ten times less than fluxgate sensors.

Citation Download Citation

Yacine Dalichaouch, Alexander R. Perry, Brian W. Whitecotton, Charles R. Moeller, and Peter V. Czipott "Magnetoresistive sensors for surveillance and remote sensing", Proc. SPIE 4232, Enabling Technologies for Law Enforcement and Security, (21 February 2001); https://doi.org/10.1117/12.417555

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available