Kearfott Corporation

Inertial
Measurement Unit
Kearfott Corporation
a subsidiary of Astronautics Corporation of America
Innovative Solutions
Scalable Performance,
Size, Weight
< 0.8
nmi/hr*
136 in3
7.5 lb
 Nav Grade
IMU
 High performance guidance for
manned, unmanned & missile
platforms
 Compact, lightweight & affordable
 Configurable for Sea, Land & Air
applications
 Flexible kit architecture supports
weight & envelope constraints
Kearfott Corporation
Guidance Navigation Division
1150 McBride Avenue
Little Falls, NJ 07424
(973) 785-6000
marketing@kearfott.com
Kearfott
Corporationwww.kearfott.com
Proven Technologies
Ring Laser Gyros




Monolithic design
Compact size
High accuracy
Excellent reliability
Fiber Optic Gyros




High accuracy
Long life / Low noise
Low power consumption
Closed loop design
Accelerometers
< 6 nmi/hr*
81 in3
3 lb
< 30 nmi/hr*
in3
30.5
<1.7 lb
 Best SWaP
available in
performance
class
 F3 to industry
standard
tactical FOG
IMU
*1-hr Free Inertial Navigational Performance,
1-sigma
Proprietary Information




High accuracy
Compact size
Force rebalance design
Excellent reliability
Electronics and
Software


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Superior reliability
Embedded GPS INS
Sensor fusion algorithms
CMMI3 software process
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A subsidiary of Astronautics Corporation of America
Kearfott Inertial Measurement Unit
Incorporating proven sensor technology and innovative packaging for industry-leading size,
weight, power and performance.
System Characteristics
Size (cubic inches)
Weight (lbs.)
Power (watts)
Operational Ranges
Acceleration (g)
Attitude (Roll, Pitch, Azimuth)
Attitude Rate (°/s)
Attitude Acceleration (°/s2)
Temperature (°C)
I/O
Power Input (VDC)
Interface
Data Rates (Hz)
KIMU-24
< 100
8
18
IMU Performance Characteristics
Gyro Bias Stability (°/hr)
Gyro Random Walk (°/√hr)
Gyro Scale Factor (PPM)
Acceleration Bias (µg)
Acceleration Random Walk (m/s/√hr)
Acceleration Scale Factor (PPM)
Acceleration Vibration Rectification (µg/g2 RMS)
KIMU-24
< 0.006
< 0.003
< 25
< 50
< 0.005
< 50
15
KIMU-16
43
4
15
IMU 42FOG
< 31
1.7
15
> 30, all axes
unlimited
> 300
10,000
-54 to +71
4.6, 30, 50, 60
unlimited
2,000
10,000
-45 to +71
+5,±15 / 28
RS-422, RS-232
Configurable
+5, ±15
SDLC, RS-422
100 to 4800
KIMU-16
0.035 – 0.080
< 0.02
< 50
< 100
< 0.005
< 100
15
IMU 42FOG
<0.5
< 0.02
< 150
< 1000
< 0.005
< 300
50
Mechanical isolation is tailorable for specified applications.
Information contained herein is for reference only; Specifications are subject to change.
Kearfott Corporation
Guidance Navigation Division
1150 McBride Avenue
Little Falls, NJ 07424
(973) 785-6000
marketing@kearfott.com www.kearfott.com
Kearfott Corporation
2
Proprietary Information
A subsidiary of Astronautics Corporation of America