CXM543 Datasheet

Magnetometers
HIGH SPEED DIGITAL ORIENTATION SENSOR
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High Resolution Flux Gate Magnetometers
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MEMS Accelerometers
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± 1.5° Accuracy in Azimuth
(Heading)
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± 0.5° Accuracy in Inclination
and Roll
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Accurately Senses Through All
Orientations
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Computes Heading, Roll, & Pitch
Applications
Magnetic Compassing for
Land or Marine Use
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Vehicle Orientation
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Remotely Operated Vehicles
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Magnetic and Gravity Field
Measurements
magnetometers
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CXM543
The CXM543 Orientation Sensor is
designed to measure the orientation
(roll, inclination, and azimuth angles)
of a platform or vehicle to which it is
attached. The CXM543 determines
the inclination and roll angles by
using a 3-axis micro-machined
accelerometer to measure the
direction of earth’s gravity. The
azimuth angle is determined by
measuring the earth’s magnetic
field using a 3-axis magnetometer
subsystem.
The CXM543 employs a high-speed
serial digital output for transmitting
data. Both RS-232 and TTL level
interfaces are present. Baud rate is
user selectable over the range 300
baud to 72,800 baud.
The CXM543 has an internal hardiron calibration firmware program.
This allows the CXM543 to measure
heading in the presence of hard-iron
interference.
The CXM543 can be configured to
operate in either a command (polled)
mode (where an external computer
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requests data) or an auto send
(continuous) mode (where data is
automatically sent repeatedly after
power up). Output data can be set to
ASCII format (ideal when using a PC)
or in binary format (more suited to a
microprocessor interface).
The CXM543 can be configured to
output either orientation angle data
(roll, inclination, and azimuth) or sensor data (AX, AY, AZ, MX, MY, MZ).
When used in orientation mode, the
accuracy of the transmitted angles is
± 1.5° for azimuth and
±0.5° for roll and inclination. Angular
resolution is better than ± 0.1°.
When used as a gravity sensor,
accuracy is ±8.5 mg and resolution is
better than 1 mg. As a magnetic
field sensor, the CXM543 fluxgate
magnetometers have an accuracy of
±0.1µT and a resolution of ±0.005 µT.
A Windows compatible program is
available with the CXM543 to
enable system configuration (e.g.,
baud rate, sample rate, mode, etc.),
data acquisition, and display.
Document Part Number: 6020-0017-01 Rev B
c r o s s b o w t e c h n o l o g y, i n c
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4145 n. first street
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san jose, ca 95134-2109
C
Specifications
CMX543
Performance
Angular Accuracy
Inclination & Roll (°)
Azimuth (°)
Accelerometer Bias (mg)
Magnetic (µT)
Angular Range
Inclination (°)
Roll (°)
Azimuth (°)
Gravity Range (g)
Magnetic Range (µT)
Linearity (% full scale)
Sensor Axes Alignment to Case (°)
Data Output Rate (angles mode) (Hz)
Environment
Operating Temperature Range (°C)
Data Levels
Electrical
Baud Rate (user selectable)
Power Input
Physical
Size
± 0.5
± 1.5
± 8.5
± 0.1
± 90
± 180
± 180
±1
± 100 (± 1 Gauss)
± 0.1
± 0.5
25
0 to + 50
RS-232 and TTL
300 - 72,800
100 mA @ +7.5 to +15 VDC
2.75" W x 4.08" L x 1.125" H
(7 cm x 10.4 cm x 2.9 cm)
9-pin non-magnetic “D”
200
Connector
Weight (grams)
Specifications subject to change without notice
Tri-axial
Magnetometer
Temp Sensor
CPU + EEPROM
RS-232
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Calibration and
Compassing
Algorithm
Regulator
magnetometers
16-bit A/D
Tri-axial
Accelerometer
+15V
543 Digital Orientation/Compass Sensor
Pin
Function
2
3
5
6
7
8
9
RS 232 out
RS 232 in
Ground
TTL serial out
TTL serial in
Configure
+7.5 to +15V DC
Pin Diagram
Ordering Information
Model
Description
CMX543
High Speed Digital Orientation Sensor
Document Part Number: 6020-0017-01 Rev B
phone: 408.965.3300
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fax: 408.324.4840
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e-mail: [email protected]
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w e b : w w w. x b o w. c o m
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