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AN20 Magnetoresistive Sensors: Theory of Operation & Applications - Zetec
Semiconductors Applications Notes An Introduction to Magnetoresistive sensor
technology as used for current and magnetic field sensor products, including ory of
operation, a description of parametric terms, and application circuit examples.
(app note added 2/06) |
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AN37 Basic Introduction to the use of Magnetoresistive Sensors - Zetec
Semiconductors Applications Notes This application note provides an introduction
to rudiments of anisotropic magnetoresistive (AMR) sensors for those users who
may be unfamiliar with ir characteristics and modes of operation and goes on to
describe some applications, with guidelines to getting best use out of
sensors. (app note added 2/06) |
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AN-4145/ Electromagnetic Compatibility for Power Converters - Fairchild
Application Notes / (app note added 6/06) |
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Apex-AN05 Precision Magnetic Deflection - 2/2001, AN5UREVD : 255 Kb (Apex App Note
added 08/08/08) |
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Basic Introduction to the use of Magnetoresistive Sensors - Zetec Semiconductors
Applications Notes This application note provides an introduction to rudiments
of anisotropic magnetoresistive (AMR) sensors for those users who may be unfamiliar
with ir characteristics and modes of operation and goes on to describe some
applications, with guidelines to getting best use out of sensors.
(app note added 2/06) |
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Build a Magnetic Field Immunity Tester - You can assemble a precompliance (or even
full compliance) magnetic field immunity test system in a few hours using common
laboratory instruments, a 100-W audio amplifier, some white PVC “Schedule-40” 3/4-in.
water pipe, some wood, and a copper or aluminum sheet.....(circuit design added
08/08/08) |
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Designing LF Talkback for a Magnetic Base Station - Microchip Application Note
Published 5-Mar-04 (app note added 6/06) |
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Electric Field & Leakage Detector - (electronic Schematic added 02/05) |
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Electromagnetic Compatibility for Power Converters/ AN-4145 - Fairchild
Application Notes / (app note added 6/06) |
| Electromagnetic Emissions Test Report on Solid State
Energy Meter - Electro Analog Devices Application Notes (app note added 6/06)
This report describes electromagnetic immunity testing performed on September 9, 1999
through September 10, 1999 on the Solid State Energy Meter. Testing was performed
pursuant to IEC 1036:1996, a standard for alternating static watt-hour meters for
active energy. |
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Electromagnetic Emissions Test Report on the AD7755 - AD7755 Analog Devices
Application Notes (app note added 6/06) This document describes
electromagnetic emissions testing performed on the Energy Meter (AD7755) on
September 8, 1999, pursuant to EN55022 requirements. It may be used to demonstrate
compliance with the European Union emissions requirements pursuant to the EMC
directive |
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Electromagnetic field detector (mitedu) - This circuit is sensitive to low
frequency electromagnetic radiation and will detect for example hidden wiring or the
field that encompasses a transformer. Pickup is by a radial type inductor, used as a
probe which responds well to low frequency changing magnetic and electric fields.
Ordinary headphones are used to for detection. The field that surrounds a transformer
is heard as a50 or 60Hz buzz. (added 5/02) |
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Electromagnetic field detector (tomi.geo) - This lovely circuit is a real gem!
Easy to assemble and more sensitive than many commercial devices available. It's based
around an LF351 low-noise operational amplifier and a 1mF choke acting as the sensor.
Unlike most other simple EMF detectors, this one has a meter output for accurate
reading, but alternatively, you can also roughly ....(added 10/05) |
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Electromagnetic Field Probe with Meter Output - This tester is designed to locate
stray electromagnetic (EM) fields. It will easily detect both audio and RF signals up
to frequencies of around 100 kHz. Note, however that this circuit is NOT a metal
detector, but ...(electronic design added 6/07) |
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Electromagnetic Levitator - The model of a small electromagnetic levitation device
will be introduced in the ... One of the significant parts of the model is the
feedback circuit. It….(circuit design added 05/06) |
EMF Probe with Meter - An electromagnetic field probe designed to detect changing
electric and magnetic fields. The probe has a meter output and headphone socket as
well.
....(electronic design added 9/02) |
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Geomagnetic field detector - This basic oscillator will detect the Earth magnetic
field. The ferrite rod and coil are taken from an old Medium Wave receiver and a small
magnet is glued at one end. Tune to a medium wave commercial station until you hear a
beat note. Any movement of the ferrite rod will produce an audible note .... (added
9/07) |
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High isolation converters use off the shelf magnetics - 07/22/99 EDN-Design
Ideas:.....(design idea added 2/06) |
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Mag Card Reader - The unit provides the magnetic head on a spring mechanism along
with low level head signal amplifiers and data slicers. Three signal lines
comming from ….(design added 08/08)) |
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Magnetic field probe requires few components - 12/15/06 EDN-Design Ideas: (design
idea added 05/06/07) Hall-effect sensor and DMM explore stray fields. |
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Magnetic Field Receiver - There are two approaches for receiving the signals, a
loop or coil antenna that picks up magnetic fields or a whip or wire antenna that
picks up the electric field. (Nature manages to make electromagnetic waves at these
frequencies but you cannot make an "electromagnetic" or tuned antenna, ... (electronic
design added (6/07) |
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Magnetic Gun - When optimally tuned, it will propel a small slug about 1.5 metres
high, or 2.5 metres horizontally. IC1 is a 555 timer in astable mode, sending approx.
10 ms pulses to decade counter IC2. IC2 is continually reset through R3, until pin 15
is taken low through the "Fire" button.... (circuit design added 07/07/07) |
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Magnetic levitation device - (electronic circuit added 4/05) |
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Magnetic Proximity Sensors - Here is an interesting circuit for a magnetic
proximity switch which can be used in various applications. The magnetic proximity
switch circuit, in principle, consists of a reed switch at its heart. When a magnet is
brought in the vicinity of the sensor (reed switch), it operates and controls the rest
of the switching circuit.... (added 09/05) |
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Magnetic-Radiation Remote-Control - Short-range 35KHz operation, single-channel
unit Simple circuitry, no outer antennas required (added 02/05) |
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Magnetometer - (circuit design added 8/03) |
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Magnetoresistive Sensors: Theory of Operation & Applications - Zetec
Semiconductors Applications Notes An Introduction to Magnetoresistive sensor
technology as used for current and magnetic field sensor products, including theory of
operation, a description of parametric terms, and application circuit examples.
(app note added 2/06) |
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Method offers Fail Safe Variable Reluctance Sensors - 11/27/01 EDN-Design Ideas: /
Variable-reluctance sensors are preferred for industrial and automotive environments,
because they sustain mechanical vibration and operation to 300°C. In most
applications, they sense a steel target that is part of a rotating.....(design idea
added 5/02) |
| Optical Magnetic Projection Booth System - (circuit
/ schematic design added 6/06) |
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Power Dissipation the Easy Way Using the Power Design Tool Apex-AN37 - Apex App
Note (added 08/08/08) |
| Precision Magnetic Deflection-Apex-AN05 - 2/2001,
AN5UREVD : 255 Kb (Apex App Note added 08/08/08) |
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RC Network Eliminates Precision Reference - 08/04/94 EDN-Design Ideas: The circuit
in Fig 1 uses a magneto-resistive sensor to detect small magnet displacements without
resorting to a precision voltage reference. A simple RC divider takes the place of the
reference, eliminating an expensive component and obviating trimming each
circuit.....(design idea added 5/02) |
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Sensitive geomagnetic detector - This is a rather sensitive circuit which will
detect minute variations of a magnetic field, particularly the Earth magnetic field.
The principle is based on an audio beat tone generated by two identical oscillators.
These must be built in the same manner with the same type of components. In this way
we minimize influence from temperature and voltage variations.... (added 9/07) |
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Two diodes change demagnetization Signal polarity - 04/12/01 EDN-Design
Ideas:.....(design idea added 11/05) |
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Virtual instrument determines magnetic core's B H loop characteristics - 01/05/06
EDN-Design Ideas: Inexpensive solution combines a laptop, DAQ card, and LabView.....(design
idea added 05/06/07) |
