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NVE Magnetic Sensors Case Studies Bootstrap Modal with Dynamic Content × Close Sensors ▾ Sensor Products   Analog Sensors     Angle & Rotation Sensors     Current Sensors     Gear Tooth (GT) Sensors     Linear & Rotation Encoder Sensors     Magnetic Switch Sensors     Medical Sensors     Smart Sensors     Evaluation Kits     PCBs for NVE Sensors    Calculators / WebApps   Magnetic Unit Conversion     Axial Disc Magnet Field     Rectangular Magnet Field     Digital Sensor Distance     Current Sensing     Gear Tooth Sensor Output     On-Axis Angle Sensing     Off-Axis Angle Sensing     Application Notes     Independent Papers     Reference Designs     YouTube Videos     Sensor Downloads     Sensor FAQs     Sensor News     Sensor Catalog     Sensor Sales     Online Store   Isolators ▾ Isolator Products   Selector Guide     IL01x Low-Power     IL400 / IL3000 Transceivers     IL500 Low Cost Isolators     IL600 Passive Input     IL600CMTI (300 kV/µs CMTI)     IL700 / IL200 Digital Input     IL700S Ultra High Speed     IL700T High Temperature     IL800 Top-of-the-Line Isolators   Passive-In Transceivers   V Series Isolators (up to 7 kV isolation)     MSOP Isolators   QSOP Isolators   Narrow-Body Isolators   Wide-Body Isolators   Evaluation Boards   ▾ Application Centers   Isolated PLCs   RS422/RS485/PROFIBUS   Isolated CAN Bus   Other Serial Interfaces   Isolated ADCs/DACs/SPI   High Fidelity Audio   Isolated Power Interfaces   Battery Management   Isolator Downloads   Cross Reference   Reference Designs   Application Notes   Isolator FAQs   Isolator News   Isolator Sales   Online Store Power Power-IC Products Power-IC Downloads Sales ▾ Product Sales   Sensors   Isolators   Online Store About ▾ Company Information Corporate Identity Spintronics Careers At NVE Videos GitHub Downloads Glossary Fun Facts News Press Releases In the News Earnings Reports Product Newsletters Papers & Presentations Awards Independent Papers   Certifications Declarations and Certificates - Quality - ISO 9001:2015 - Environmental - Environmental Compliance Conflict Minerals Report Conflict Minerals RMI CMRT Extended Minerals Reporting Template (EMRT) EU MDR Declaration of Compliance California Proposition 65 Statement - Safety - IEC 62368-1 Certificate of Compliance (audio/video, information, and communication technology equipment) VDE Manufacturing Site Approval VDE 0884-17 Basic Isolation VDE 0884-17 Reinforced Isolation UL1577 Isolation IECEx Certificate of Conformity under IEC Certification System for Explosive Atmospheres ATEX Certificate for Intrinsically Safe Isolators - Other - Anti-Forced Labor and UFLPA Compliance Investors ▾ Investor Relations Fact Sheet Stock Quote Investor Events Earnings Reports Annual Reports Corporate Governance ESG Stock Indices Analysts Rankings Investor FAQs Contact Data Sheets Data Sheets (.pdf) Sensors AA Series AAT001/AAT009 AAT003 AAT006 AAT101 AB Series ABT Series ABL Series ACT001 AD Series ADA Series ADK991 ADL Series ADT001 ADT002 ADT501 ADT9xx ADV Series AET Series AFL Series AHL Series AHK991 AHT Series AKL Series AKT001 ALT Series ALT 521 D Series ASR002 ASR012 ASR022 SM12x Series SM223 SM225 SM228 SM324 Isolators IL01x IL260 IL261 IL262 IL2985 IL3022 IL3085 IL3122 IL3185 IL3222 IL3285 IL3422 IL3485 IL3522 IL3585 IL3685 IL3685P IL41050TT IL41050TA IL41050TFD Series IL422 IL485 IL485W IL4622 / IL4685 / IL4822 IL5xx Series IL6xx Series IL6xxA Series IL6xxCMTI Series IL710 IL711 IL712 IL715 IL716 IL717 IL721 IL76xx / IL78xx Series IL8xxT Series Power ICs ACT001 DB001 DC001 DC002 ILDC1x NVE Home > Sensors > Independent Papers NVE Sensors Products Analog Sensors Angle & Rotation Sensors Current Sensors Gear Tooth (GT) Sensors Linear & Rotation Encoder Sensors Magnetic Switch Sensors Medical Sensors Smart Sensors Evaluation Kits PCBs for NVE Sensors Application Notes Independent Papers Reference Designs WebApps Sensor Downloads Sensor FAQs Sensor News Sensor Sales About > Videos Short-Form Sensor Catalog (.pdf) Independent Papers A GMR-Based Smart Respiration Belt for Non-Invasive Real-Time Monitoring
IEEE Sensors Letters, Vol. 10, Issue 3, March 2026. An NVE AA002-02E GMR sensor was used as a magnetic transducer.   Eco-friendly magnetic ferrofluids nanotag for giant magnetoresistance chip-based biosensor
J Mater Sci: Mater Electron, 37, 323, Feb. 6, 2026. Excerpts: “The sensor demonstrated strong detection capabilities for magnetic ferrofluids, exhibiting a linear sensitivity to the concentration of each ferrofluid... These findings highlight the considerable promise of integrating commercial GMR chip sensors (AAL024) with green-synthesized magnetic ferrofluids for enhanced biomolecule detection.”   A Linearizing Digital Front-End for GMR-Based Magnetic Field Sensor
IEEE Sensors Letters, Vol. 9, No. 12, Dec. 2025. An NVE AA004-02E GMR analog magnetometer sensor is digitized and characterized with a linearizing digital front-end. Excerpt: “...the [AA004] standard deviation and SNR were found to be 1.24 µT.... Thus, resolution, considering the three-sigma method, is 3.72 µT.”   Automatic visual identification of defects by magnetic field imaging using alternating current field measurement technique
Journal of Magnetism and Magnetic Materials, Oct. 15, 2025. An NVE ALT025-10E TMR analog magnetometer sensor is used in a system to detect defects in oil storage tanks and pipelines. Excerpt: “Tests on irregular defects yield reconstruction errors within 5%, demonstrating strong stability and generalization for industrial scenarios.”   Large-Scale Self-Powered Vibration Control: Theory and Experiment
arXiv: 2509.11346, submitted on Sept. 14, 2025. NVE IL600-Series digital isolators are used to isolate PWM signals from an inverter circuit in the DC-DC convertor section of a power-control system (IL600CMTI-Series ultrahigh Common-Mode Transient Immunity isolators allow higher switching speeds and therefore higher efficiency in power conversion applications).   Digital Interface for Short-Span Resistive Sensors Using SAR Technology
2025 IEEE Applied Sensing Conference (APSCON), published Sept. 4, 2025. An NVE AA005-02 was digitized with an Arduino and an MCP4725 Digital-to-Analog Converter. Excerpt: “The digitizer’s output was linear with respect to the changing magnetic field, with a maximum non-linearity error of 1.1%.”   Training on multiple days results in better learning in embedded eyeblink conditioning in young human adults
npj Sci. Learn., August 14, 2025. An NVE AAH002 analog GMR sensor is used to measure eyeblinks in learning research. Excerpt: “The experimental setup consists of custom-made glasses, attached with [NVE] magnetic sensor and airpuff nozzle.”   Development of Giant Magnetoresistance Sensor Application AB001-02 Series for Mass Measuring Instrument Design Based on ATMega328p Microcontroller
[abstract (English)]   [.pdf (Indonesian)] JIPFRI (Jurnal Inovasi Pendidikan Fisika Dan Riset Ilmiah), May 30, 2025. An AB001-02 GMR gradiometer sensor is used to measure displacement in a weigh scale. Excerpt: “The results show the sensitivity of the GMR sensor on mass measurement is 0.0816 Volt/Kg and has a measurement range of 0 - 4.3 Kg with a resolution of 100 g.”   Alcohol impairs learning and timing of conditioned eyeblink responses
Brain Research, May 1, 2025. An NVE amplified sensor board based on the AAH002 GMR sensor is used to assess alcohol impairment. Excerpt: “The [NVE] GMR sensor, positioned right underneath the left eye, recorded magnetic field alterations generated by eyelid movements.”   Ultra high sensitive magnetic measurement system based on Lock-in amplifier technique and giant magnetoresistance sensor (.pdf)
Vietnam Journal of Science and Technology, March 25, 2025. An amplified NVE AAH002-02E GMR sensor provides a remarkably low limit of detection. Excerpt: “Experimental results showed that the device has a limit of detection (LOD) of 3.81 nT... This magnetic field measurement system can detect the magnetism of superparamagnetic nanoparticles (SPMNPs) associated with molecular biological targets, supporting the development of biomedical analysis devices.”   Empowering Wearables with Ballistocardiography-based Key Generation through Magnetic Field Vibration Sensing
Proc. ACM Interact. Mobile Wearable Ubiquitous Technology, March 2025. NVE AA002 GMR sensors are used for a wearable ballistocardiograph.. Excerpt: “As a fundamental step of device-to-device communication, how to securely pair wearable devices has attracted increasing attention from academia and industry.”   Enhanced detection of bovine serum albumin using single- and double-chip configuration of tunneling magnetoresistance-based biosensor with green-synthesized magnetite/Ag nanotag
Microchim Acta, Feb. 11, 2025. A biosensor based on two ALT025 TMR sensors. Excerpt: “These results indicate that the double-chip configuration in TMR biosensors is a reliable detection method showing competitive performance with green-synthesized magnetic labels under low bias conditions. This research supports the potential of this system as a prescreening tool in medical diagnostics, which may help reduce the risks of disease progression.”   Development of a Proximity Contactless Ammeter Based on GMR sensors for Measuring Direct Currents
Measurement: Sensors, Dec. 26, 2024. Two AAL002-02 GMR sensors are used to make a precise current sensor with a ±20 A range. The sensors are powered by constant-current sources and amplified using intrumentation amplifiers. Excerpt: “GMR magnetometers present a low-cost, high-sensitivity solution for the development of an ammeter, capable of measuring direct currents in a non-invasive way.”   Development of a Reliable Assay of Eco-friendly Fe3O4Ag Nanocomposite-Based Giant Magnetoresistance Sensor J. Electrochemical Society, Nov., 2024. An AAL024-10E sensor is used to detect magnetic nanoparticles for biosensing. Excerpt: “The [NVE] GMR-based sensor... exhibits significant potential as a rapid and reliable green biosensor that is power-efficient.”   Exploring Biomagnetism for Inclusive Vital Sign Monitoring: Modeling and Implementation ACM MobiCom 2024, Oct. 2024. An AA004 sensor is used to detect heartrate and respiration in a smartwatch platform.   Real-time Biomolecule Detection Using GMR Chip-based Sensor with Green-synthesized Fe3O4/rGO Nanocomposites as Magnetic Labels Sensors and Actuators A: Physical, Sept. 1, 2024. An AAL024-10E sensor combined with an Arduino is used to detect blood proteins.   Commercial Chip-based Tunneling Magnetoresistance Sensor for Green-synthesized Magnetic Nanoparticles Assay Sensors International, July 28, 2024. An ALT025 TMR sensor interfaced to an Arduino detects magnetic nanoparticles for biosensing.   Contactless Position Measurement of an Electrical Conductor using GMR Sensors 2024 IEEE Sensors Applications Symposium, July 23, 2024. An AA002 sensor is used to determine the position of a wire to a resolution of 10 microns, with applications in wire-sawing and musical instruments.   A development of high sensitivity magnetic sensor based on giant magnetoresistance with simple implementation on smartphone International Journal of Applied Mathematics, Sciences, and Technology for National Defense, Nov. 2023. An AA002 sensor is connected to a smartphone via Bluetooth using an Arduino and MIT App Inventor.   Demonstration stand for non-destructive conductive material defect inspection by eddy current
IMEKO TC4 Symposium, September 20, 2023. An eddy current NDE demonstration using an AA002 GMR magnetometer interfaced to a National Instruments myRIO DAQ controlled with LabVIEW.   Circular-arc array for the pulsed eddy current inspection of thermally insulated pipelines Measurement Science and Technology. August 30, 2023. An AAH002 GMR sensor array and a pulsed eddy current technique for inspection of corrosion under insulation in petroleum and chemical process industries.   Development of a Microfluidic Chip System with Giant Magnetoresistance Sensor for High-Sensitivity Detection of Magnetic Nanoparticles in Biomedical Applications Biosensors, August 11, 2023. This research presents a novel approach for a microfluidic chip system with an NVE AAH002 high-sensitivity GMR magnetometer. The system successfully detects low concentrations of magnetic nanoparticles at high velocities.   New design of a commercial chip-based GMR sensor with magnetite nanoparticles for biosensing applications Journal of Science: Advanced Materials and Devices, June 2023. This paper reports a new setup for a simple GMR sensor using the NVE AAL024 as a transducer.   Effects of working memory load and CS-US intervals on delay eyeblink conditioning npj Sci. Learn. 8, 16, May 20, 2023. This paper describes using an AAH002 magnetic sensor and a neodymium magnet to measure eyeblink conditioning.   Tracking Electrolyte Motion in Cylindrical Li-ion Cells Using Moment of Inertia Measurements Journal of The Electrochemical Society, April 27, 2023. This paper describes using an AG957-07E breakout board with an ASR002 SPI Angle Sensor to measure moment of inertia.   A study of flex miniaturized coils for focal nerve magnetic stimulation Medical Physics, December 11, 2022 The paper describes transcranial magnetic stimulation using an NVE AAK001-14E analog sensor for magnetic field measurement.   Synthesized Transmitting Coil for Magnetic Focusing of Pulsed Eddy Current for Downhole Casing Inspection Applied Sciences, July 30, 2022 A transmitting coil with multiple connected sections using different winding directions to adjust the magnetic field distribution without requiring multiple transmitting coils. The design uses an observation array of 25 NVE AAH002 sensors.   Simple Giant Magnetoresistance Probe Based Eddy Current System of Defect Characterization for Non-Destructive Testing Advanced Electromagnetics, May 11, 2022. An eddy current probe using AAH004 sensors.   A New Platform of Iron Oxide-Based Nanoparticles Assay Using GMR Chip-Based Sensor With Microcontroller IEEE Sensors Journal, November 1, 2021. An AAL024 GMR magnetometer and an Arduino for detection of magnetic nanoparticle immunoassays.   High Sensitivity Differential Giant Magnetoresistance (GMR) Based Sensor for Non-Contacting DC/AC Current Measurement (.pdf) Sensors Journal, January 6, 2020. An AA003 GMR analog sensor is linearized with adjustable bias for use as a current sensor.   Design and Construction of a Magnetic Signal Detection Block for Magnetic Nanoparticles that Flow Through Straight Microchannels International Conference on Electrical Engineering, Computing Science and Automatic Control, November 11-13, 2020. A “Lab-on-a-chip” design based on an AAH002 sensor with constant-current power, differential amplifier, and filter.   Non-Invasive Measurement of Glaucoma Disease at Earlier Stage Through GMR Sensor AH Biomagnetic Signal From Eye and RADWT Algorithm IEEE Sensors Journal, April 9, 2019. An NVE sensor is used to measure the biomagnetic signal of the aqueous humor for early glaucoma detection.   Eddy Current Testing with Giant Magnetoresistance (GMR) Sensors and a Pipe-Encircling Excitation for Evaluation of Corrosion under Insulation Sensors (Basel), Oct. 2017. Three perpendicularly-aligned AA004 sensors are used in an eddy current nondestructive testing system for pipes.   Analysis of a GMR-Based Plethysmograph Transducer and its Utility for Real-time Blood Pressure Measurement (.pdf) Engineering in Medicine and Biology Society, 39th Annual International Conference of the IEEE, July 2017. A “magneto-plethysmograph” uses two AA002 sensors for real-time, cuff-less measurement of blood pressure based on pulse wave propagation time.   Nondestructive Detection of Wire Rope Discontinuities from Residual Magnetic Field Images Using the Hilbert-Huang Transform and Compressed Sensing (.pdf) Sensors (Basel), March 2017. An array of 18 AAH002 sensors excited by small magnets placed end-to-end to form a magnetic strip are used to detect cable defects.   On-Line Irradiation Testing of a Giant Magneto-Resistive (GMR) Sensor (.pdf) CNL Nuclear Review, Vol. 5, No. 1, June 2016. An AA003 sensor was irradiated with a large, 200 Mrad dose of gamma rays, with no significant evidence of degradation of the sensor characteristics was observed.   A Wireless Intracranial Brain Deformation Sensing System for Blast-Induced Traumatic Brain Injury Nature, 2015. NVE AAH002 sensors are used to track magnet movement to sense blast-induced traumatic brain injury.   Low-Power Flow Meter Design Using GMR Sensors (.pdf) Texas Instruments TI Designs, 2014 A rotary water meter reference design using two AA002 sensors connected directly to a extended scan interface controlled by an MSP430 microcontroller.   Dual-Stage Nanopositioning for High-Speed Scanning Probe Microscopy (.pdf) IEEE/ASME Transactions on Mechatronics, 2014. An NVE GMR analog sensor is used for extremely precise positioning.   Extending the GMR Current Measurement Range with a Counteracting Magnetic Field (.pdf) Sensors, 2013. Magnetic bias extends the current-measurement range for an AAL002 sensor to ±45 amps. A microcontroller provides automatic scaling.   Monitoring active corrosion of metals in natural environments with magnetometry Journal of Corrosion Science, Oct. 2012. The researchers demonstrate practical corrosion monitoring in aluminum or steel using NVE magnetic sensors.   360° Winkelmessung ist auch mit geringem Stromverbrauch moglich (“360° angle measurement is possible with low power consumption”; .pdf; German) Industrielle Automation, 2012. An NVE AAT001 sensor TMR angle sensor combined with an interface IC.   A Current Sensor Based on the Giant Magnetoresistance Effect: Design and Potential Smart Grid Applications (.pdf) Sensors (Basel), 2012. An NVE AA002 is used for a 0 to 5 amp current sensor in a magnetic ring with 99.97% linearity.   Flexible GMR Sensor Array for Magnetic Flux Leakage Testing of Steel Track Ropes (.pdf) Journal of Sensors, 2012. An array of 12 AA004 sensors on a flexible circuit board was wrapped around thick steel ropes for nondestructive testing, and was demonstrated to effectively detect defects and provide spatial information for imaging.   Side Channel Analysis using giant magneto-resistive (GMR) sensors (.pdf) COSADE, 2011. An AB001-02 sensor is used to detect small magnetic fields at frequencies above 600 MHz.   Controller for upper-limb neuroprosthesis (.pdf) Journal of Rehabilitation R&D, 2009. A magnetic proximity sensor using three NVE analog magnetic sensors.   GT™ Sensors in High-Speed Cylinder Position Sensing Industrial Embedded Systems, 2008. A design case study using an ABL014 sensor and MSP430 microcontroller.   GMR Sensor Tackles High-Speed Motion Industrial Embedded Systems, 2008. A design case study using an NVE GT™ gear tooth sensor.   Using AA002 Sensors With the TI MSP430 Scan Interface (.pdf) Texas Instruments Application Report, 2007. This report describes a rotation detector using a pair of AA002 sensors and a TI microcontroller.   Safety device uses GMR sensor (.pdf) EDN, 2003. An NVE AA004 sensor used in a ground-fault interrupter.   Nondestructive Inspection (NDI) for Diffusion Bonded Components (.pdf) Defense Technical Information Center, August 2003. An array of eight AAH002 sensors produces eddy current maps for nondestructive inspection.   GMR sensors manage batteries (.pdf) EDN, 1999. An NVE AA004 sensor is used as a non-contact current sensor in a Battery Management System. Main Pages Product Sales Sensors Isolators About NVE Our Products Sensor Downloads Isolator Downloads Technical Videos Buy NVE Products Investors Investor Relations Press Releases In the News Earnings Reports Subscribe to Our Newsletter

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