Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken 476-8666 Japan TEL: 052-603-9957, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken 476-8666 Japan TEL: 052-603-9757 Production Aichi Micro Intelligent Corporation http://www.aichi-mi.com/ Sales Aichi Steel Corporation http://www.aichi-steel.co.jp/ ■AMI501 Specifications G 2 Motion Sensor The G 2 Motion Sensor uses a Magneto-Impedance Sensor to detect both geomagnetism and gravity, and due to the combined one-chip design, realizes excellent performance in a small size, including high angle resolution and high frequency response. With complimentary processing of the output from both sensors, the G 2 Motion Sensor determines the attitude of mobile devices relative to geomagnetism and gravity, and by analyzing the attitude and speed, other aspects of movement such as acceleration, translational speed, and rotational speed can be calculated. ■Dimensions (units: mm) ■Block diagram AMI501 3 ■Applications Motion-sensing games in which the display moves according to the movement of the mobile phone Operation of various commands according to movement of the mobile phone Control of operating attitude in unmanned helicopters, robots, automobiles, etc. Navigation functions combining the sensor with a GPS function (Azimuthθ) x y z Geomagnetism Gravity Determination of translational/rotational movement Horizontal Detection θ Hz H x Hy Roll φ Pitch ψ tanθ= Hy Hx 3-Axis Magnetic Sensor 2-Axis Accelerometer Hz 100 Frequency response mV/g 200 80 40 Sensitivity mV 2200 1500 800 Output voltage at zero g, zero magnetic field %FS 5 2 Output linearity g ±2 Operating range Accelerometer Magnetic sensor kHz 1 Frequency response mV/μT 4.2 3.0 1.3 Sensitivity mV 2200 1500 800 Output voltage at zero magnetic field %FS 4 1.3 Output linearity mT ±0.2 VDD=3.0V Operating range ℃ +85 -20 Operating temperature V 3.6 3.0 2.6 Power supply Unit Max. Typ. Min. Condition Item ■Attitude Detection Principles G Square Product Lineup ■AMI501 Appearance VDD2 GND1 GND2 Pulse Generator Time Signal Generator Sample Hold (Alternate X,Y) Ref.Voltage Current Control Y axis Movable magnet X axis Movable magnet Time Signal Generator Sample Hold (Alternate X,Y) Current Control Pulse Generator Ref. Voltage Y axis sensor X axis sensor Diff. AMP VDD1 VDD1 Diff. AMP VDD1 VDD1 VDD2 Z axis sensor Y axis sensor X axis sensor OUT_C CH1 CH2 CS_C CS_A OUT_A CH3 Dimensions: 5.5×5.5×1.5 mm (1) 5- Axis types AMI501 1μF
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Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
The G2 Motion Sensor uses a Magneto-Impedance Sensor to detect both geomagnetism and gravity, and due to the combined one-chip design, realizes excellent performance in a small size, including high angle resolution and high frequency response.
With complimentary processing of the output from both sensors, the G2 Motion Sensor determines the attitude of mobile devices relative to geomagnetism and gravity, and by analyzing the attitude and speed, other aspects of movement such as acceleration, translational speed, and rotational speed can be calculated.
■Dimensions (units: mm)
■Block diagram
AMI501
3
■Applications
Motion-sensing games in which the display moves according to the movement of the mobile phone
Operation of various commands according to movement of the mobile phone
Control of operating attitude in unmanned helicopters, robots, automobiles, etc.
Navigation functions combining the sensor with a GPS function
(Azimuthθ)
xy
z Geomagnetism
Gravity
Determination oftranslational/rotational
movement
Horizontal Detection
θ
Hz
Hx
Hy Roll φ
Pitch ψ
tanθ= HyHx
3-Axis Magnetic Sensor 2-Axis Accelerometer
Hz100Frequency responsemV/g2008040Sensitivity
mV22001500800Output voltage at zero g, zero magnetic field
Ultra-small one-package device that senses the geomagnetic field with 2-axis MI Sensors. Azimuth is calculated from the ratio of the size of geomagnetism in the X and Y directions. Received the Best of Sensors Expo Silver Award at the U.S. Sensors Expo & Conference in Fall 2002.
■AMI201 Appearance and Construction
ICMI Element(X axis)
MI Element(Y axis)
1
64
3
5
2
Y axis
X axis
Bottom Side Top
3.4
● 2 X 2 3
0.8±0.05
A 2 0 1
Production Lot
Number
Model Name
3.1 0. 8
0. 8
0.8 0.8 6-φ0.5
(X-axis, Y-axis arrows indicate direction of + magnetic field
(1) 2-Axis Electronic Compass AMI201
■Package Dimensions (units: mm)
AMI201
Dimensions: 3.1×3.4×0.8mm
Product Lineup
OUT
GND2
XYin
Y axis sensorX axissensor
VDD
GND1
Pulse Generator
Synchronous Detection Control
Sample Hold(X-Y
Selection) DifferentialAmplifier
Reference Voltage
■Block Diagram
CS
5
kHz1Frequency Response
mV/μT2.92.1Sensitivity
mV1450850Output Voltage w/ Zero Magnetic Field
%FS2.2Output Linearity
mT±0.2VDD=2.6VOperating Range
℃+85-20Operating Temperature
V3.602.602.50Voltage
UnitsMax.Typ.Min.ConditionItem
AMI302
■Block Diagram
■AMI302 Main Specifications
■Package Dimensions (units: mm)
(2) 3 –Axis Intelligent Electronic Compass AMI302
■AMI302 Appearance and Construction
Z axis sensorIC
X,Y axis sensor
VDDM
1.0μF
OUT
GNDA
CH1
Y axis sensor
X axissensor
VDDA
CS
Pulse Generator
Synchronous Detection Control
Sample Hold(X-Y
Selection) DifferentialAmplifier
Reference VoltageZ axis sensor
CH2
GNDM
VDD
1.0μFVDD
Side TopBottom Model Name
1pin 12pin
7pin6pin
3.5±0.1
4.0± 0.1
0.35
1.2
1.1
0.8
0.8×
3 =
2.4
0.3 5
A 3
0 2
3 Y
0 1
1.45±0.12
kHz1Frequency Response
mV/μT4.22.7Sensitivity
mV22001500800Output Voltage w/ Zero Magnetic Field
%FS4.02.3Output Linearity
mT±0.2VDD=3.0VOperating Range
℃+85-20Operating Temperature
V3.603.002.60Voltage
UnitsMax.Typ.Min.ConditionItem
Y軸
X軸
Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
MI element and electronic circuits on a 31×11mm circuit board. Requires only 5V power connection. Feedback-type has 0.4%FS high linearity.Choose magnetic sensing in either the lengthwise (MI-CB-1DL) or perpendicular (MI-CB-1DL-A) direction.
3mm
3mm
6mmMagnetic SensingDirection
Operation with 5V power. 100kHz fast reponseis achieved by omitting feedback. Magnetic Sensing
Direction
Note) Please use with output load set for 100Ω or greater.
6
5.0
-50 0 50 100temperature (℃)
outp
ut v
olta
ge (V
)
4.0
3.0
2.0
1.0
0
Linearity
external magnetic field(Gauss)
outp
ut v
olta
ge (V
)
measurement range(Gauss):+/-3 Gauss
output characteristics at 3 Gauss
at 0 Gauss
at -3 Gauss
Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
New MI Sensor well suited to use in automobiles with a dynamic range expanded to ±30 Gauss. Due to improvement in the wire turn density of the pick-up coil and miniaturization of the element, this sensor achieves a range ten times wider than that of conventional MI Sensors and 1/3 downsizing. Downsizing also contributes to lower cost. Two types are available, with range ±30 Gauss or ±10 Gauss.
Output Characterisitcs of MI Sensor For Automotive Use
Temperature Dependence
0
1000
2000
3000
4000
-50 0 50 100 150
temperature(℃)
outp
ut v
olta
ge (m
V)
at 20 gauss
at 0 gauss
at -20 gauss
0.45mm
MI Sensor for Automotive Use
Wide Range MI Element
(4) High Sensitivity AC Magnetic Field Detection Type (MI-CB-1DS)
High sensitivity sensor (30mV/mG) with frequency band restricted to 0.3~5Hz. With resolution above 0.3mG, able to sensitively catch magnetic field variations. Cancels steady magnetic fields such as geomagnetism, and detects magnetic fields generated by movable objects with high sensitivity. Able to detect metal objects such as knives at security gates without false readings, as well as foreign bodies like staples and paper clips within food or clothing.
Office paper clip caught at a distance of 100mm
-40
-30
-20
-10
0
10
0.01 0.1 1 10 100
Frequency(Hz)
Out
put V
aria
tion
(dB
)(3) Wide Range Type (MI-CB-1DW) MI-CB-1DW
MI-CB-1DS
31mm
10mm
20mm
6mm
MI Element
Product Lineup
7
0
1
2
3
4
5
-30 -15 0 15 30magnetic field (gauss)
outp
ut v
olta
ge (V
) Linearity: 0.98・FS
pattern
Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
Outputs the attitude (yaw, roll, pitch) of objects in real time, combining a 3-axis magnetic sensor (MI Sensor) and 2-axis tilt sensor.
Main SpecificationsBoard dimensions: 85.0×54.9mmDetection resolution: 2°Calibration modeSampling software (Microsoft Visual Basic) included
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(4) Computer Graphic Controler (AMI601-CG)
Soon to be released
A control unit having AMI601 to detect the unit's attitude and output the data through wireless transmitter.Comupter graphic's attitude can be controled with the unit. Suitable for the applications such as real-time product presentation, on-line shopping presentation and 3 dimensional games.
antenna unit
Laser pointer
AMI601
communic ation
circuit
AMI601-CG
Outputs the attitude (yaw, roll, pitch) of objects in real time. Containing AMI501 (3-axis magnetic and 2-axis accelerometer).
Main SpecificationsBoard dimensions: 94.0×45.9mm Azimuth resolution: 1.25°Tilt resolution: 1.5°(~±70°)Sample software: C++ included.
Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
Two AAA batteries(1.5V)Power Source:-199.9μT~+199.9μT(-1.999G~+1.999G)Detection range:
0.01μT(0.1mG)Resolution:
4. Research Tools (1) Milli-Gaussmeter (MGM-1DS)
1. Detection RangeThe Milli-Gaussmeter can detect magnetic fields as small as10-4 Gauss.
3. Properties
The Milli-Gaussmetercan measure both DC and high frequency AC magnetic fields.
Performance is stable over a temperature range of-40℃to 85℃, enabling the sensor to make reliable outdoor measurements.
MilliMilli--GaussmeterGaussmeter
MGM-1DS
2. Basic Specifications
An Innovation in Minute Magnetic Field DetectionAn Innovation in Minute Magnetic Field Detection
Product Lineup
Using an MI Sensor in its sensing section, the Milli-Gaussmeter is a high precision magnetic field measuring instrument able to measure submilligauss minute magnetic fields. Battery-driven, it can be carried along for hand-held measurements anywhere.
9
Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
(2)Magnetic Field Compensation Device PalmGauss (PG-1G)
Compact Magnetic Field CancellerCompact Magnetic Field Canceller
PalmGaussPalmGaussPrecise Control of 3D Magnetic Fields With the MI Sensor
Compact・Precise・Low Price
PG-1G
Product Lineup
Detects external magnetic fields in 3D with high sensitivity MI Sensors, and uses an opposite phase magnetic field generated by the compensation coil to create the desired magnetic field.
■Software operating environmentWindows 98, 2000, XP
(*)Computer not included
■Source code for the basic software is open and may be freely altered to suit the needs of the user.
■Software optionsElectronic compass calibration softwareSoftware for applying a rotating
magnetic field
10
Aichi Steel Technology Campus, 1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9957,
1 Wano-wari, Arao-machi, Tokai-shi, Aichi-ken476-8666 Japan
TEL: 052-603-9757
Production Aichi Micro Intelligent Corporationhttp://www.aichi-mi.com/
Array sensor with 24 AMI201 sensors in a straight line. Ideal for measuring magnetic field distribution.●Data log function: simultaneously measure magnetism in two axis directions●Real-time display function: easily observe surface magnetic distribution of electronic devices such as
mobile phones
Built-to-Order
■Main SpecificationsLine sensor circuit board dimensions: W110×H40×t1.6mmUSB converter board dimensions: W85×H55×t1.6mmmeasuring time : X-24ch, Y-24ch in 1.5sectime base range : ±10mG~2G
■Block Diagram
Graph Display
11
Coil A
Coil B
control circuit
battery: 2 AA
Coil B
Coil B
Coil BCoil A
10 mG
20 Hz
10 mG
20 Hz
Pulse Filed Wave Form
Filed Direction
parallel
antiparallel
10mG
PRT-01(4) Protonics Study KIT (PRT-01)
Pulse magnetic field generator that creates 10 mG ultra low frequency magnetic field.Battery operated, continuously works for more than 1 week.
SpecificationsCoil dimensions : W300×H150×t15mm×2coilsField strength : 10 milligauss at the center of the coilField frequency : Selectable from 6, 8, 12, 20, 40 HzField direction : Selectable parallel or antiparallel in A and BPower : 2 AA batteries
tanθ= HyHx
(θ= rotationangle)
ICMI element (X axis)
MI element(Y axis)
Air gap
MR Type MI Sensor Application
Rotation Angle Sensor
■Proposal Detect rotation angle of 2-pole magnet from the ratio of facing 2-axis sensors
■Features Magnet-sensor air gap control unnecessary (angle calculated from 2-axis ratio)
High resolution (1°)
■Use Throttle position sensor, accelerator position sensor
Electronic C
ompass
■Proposal Detect azimuth with an MI sensor electronic compass chip
■Features Ultra-small/high speed/low power consumption
Tilt correction possible(combination of 3D type and tilt sensor)
■Use Heading display
Attitude D
etector
■Proposal Attitude detection using the earth’s magnetic field as a reference
■Features Absolute angle is detectable by using the earth’s magnetic field
Small, inexpensive
■Use Portable device input supportHeadlight point control, grade detection in carnavigation systems pitchroll
yaw
Proposed Applications
Proposed Applications
A wide range of applications making use of the performance of the MI sensor can be anticipated, such as electronic devices, automobiles, and factory automation. This section provides various example applications.
12
MI Sensor A↓
↑MI Sensor B
MI Sensor A MI Sensor B
Shared IC
Gear tooth
Rotation Sensor
■Proposal Detect rotation direction via phase difference of parallel 2-axis MI sensors
■Features Detect rotation direction, detect at 0 speed
Low cost: switch processing with single IC shared by two elements
Outstanding heat resistance (~150℃)
■Use ABS wheel speed sensor
N
S
High Resolution Angle Sensor
■Proposal Angle detection of a multi-polar magnetized magnet with two sensors having 90℃ phase contrast, resolved to one pitch
■Features Ultra high resolution (Ex. 360 divisions per pitch, 50 pitches = 18,000 divisions/perimeter)Low cost ferrite plastic magnet can be used for the magnet because of the sensor’s high sensitivity
■Use Steering angle sensor
Torque Sensor
■Proposal Using two ultra high resolution angle sensors, detect torque from the torsion angle of the shaft
■Features Low price with simple construction, high precision
■Use Steering motor torque sensor
Heat-R
esistant Sensor
■Proposal Application in an engine periphery sensor that takes advantage of the high heat tolerance (~150℃) of the MI element
■Features Use at temperatures that are impossible with conventional magnetic sensors
■Use Engine periphery magnetic sensor system
Autom
atic Driving S
ensor
■Proposal In-vehicle sensor for an automatic driving system that follows marker magnets on the road
■Features High sensitivity of the MI Sensor makes it possible to use low cost, lower grade marker magnets (with lower magnetic force)
■Use Magnetic sensor in an automatic driving system
Multi-polar magnetized ring magnet•50mmφ•Ferrite plastic magnet (1.7MGOe)•50-pole magnetized
MI Sensor A↓
NS
N
↑MI Sensor B
Output
BA
SN
MI Sensor A MI Sensor B
Ultra High ResolutionTwo-axis MI Sensors
←IC Signal Processor
MI Element
Engine
MI Sensor
Magnet marker
M
MI Sensor
M
MI Sensor
Signal Processor IC
Electric C
urrent Sensor
■Proposal Non-contact detection of current level with an MI Sensor, by measuring the magnetic field in the vicinity of the electric current
■Features Direct monitor of current flowing to motorSimply mounted on the circuit board patternLow cost, ultra small (height 5mm)Outstanding temperature stability
■Use Electric power-steering torque motors current detection Elec. compressor three-phase motor current detection
Proposed Applications
13
Hall Sensor (Three-Piece) + Ferrite Maagnet
Three Axis Switching MI + Magnetic Field Leakage
RotorFerrite↑Ring Magnet
Hall Sensor
Rotor
Magnetic Field Leakage
MI Sensor
DC Brushless Motor Rev Sensor
■Proposal Three-phase timing sensor for DC brushless motors
■Features Timing magnet set for Hall sensors can be omitted by detecting rotor magnet leakage flux Low cost due to XYZ three-axis sensor signal processing with a one-piece control IC
■Use DC brushless motor revolution sensor
Currency D
etector
■Proposal Detect currency magnetic ink
■Features Detectable without contact
■Use Currency detection sensor for vending machines, ticket machines
Foreign Substance Detector■Proposal Use high-sensitivity fluctuating magnetic
field-type
■Features Responds only to metal objects such as paper clips and staples
■Use Foreign substance detection of food, meat, apparel
Security G
ate
■Proposal Sensor for Magnetic Security Gate
■Features Detects only metal such as knives, no false detection of other objects
■Use Security checks for dangerous objects at airports and public events
BiokineticD
etector
■Proposal Install a magnet marker in the human body, and measure the path of movement
■Features Non-contact measurements possible
■Use Detection of jaw and joint movement
Proposed Applications
MI Sensor
Notebook computer for
indication
Ultrasonic sensor
Camera
14
MIsensor
Magnet marker
Aichi Micro Intelligent CorporationAichi Micro Intelligent Corporation is developing magnetic sensing systems that apply the Amorphous MI Sensor, a new magnetic sensor.
Aichi Steel Corporation
■As part of the Toyota Group, a Steel Production Division was established at Toyoda Automatic Loom Works, Ltd. in 1934 with the goal of research and development of specialty steel indispensable to the domestic production of automobiles. In 1940 the Steel Production Division became an independent company, inaugurated as “Toyota Steel”, which was later renamed “Aichi Steel”.
In recent years, Aichi Steel has also focused on the development of electromagnetic products, commercializing such products as MI sensors, magnetic dental attachments and plastic magnets, and advancing the development of target markets, including the fields of dentistry and information.
■Establishment March 8, 1940■Capital ¥25,000 million (As of March 31, 2005)■Representative Akiyoshi Morita, President■Employees Consolidated: 4,374 Parent Company Only: 2,359(As of March 31, 2005)■Business Production and sales of electromagnetic products, special steel materials, forged