Page 30 - Jewell Inertial Sensor Catalog
P. 30
Quartz Flexure Accelerometers
QFA - 125 QFA - 150 QFA - 180 QFM - 180
Features & Benefits • Mid-Temperature Range • Mid-Temperature Range • High Temperature Range • High Temperature Range
• Excellent Repeatability • Excellent Repeatability • Excellent Repeatability • Miniature Compact
• Environmentally Rugged • Environmentally Rugged • Environmentally Rugged
• Choice of Square or • Choice of Square or • Choice of Square or Design
Round Mounting Flanges Round Mounting Flanges • Environmentally Rugged
• Built In Self-Test System • Built In Self-Test System Round Mounting Flanges • Square Mounting
• Built In Self-Test System
Flanges
• Built In Self-Test System
Applications • Rail Maintenance Track • Borehole Mapping • Well Borehole Logging • Borehole Mapping
Performance Specs Geometry • Wind Tunnel Testing • Measure While Drilling • Measure While Drilling
• Marine Instrumentation • Structural Monitoring • Structural Monitoring
• Wind Tunnel Testing • 3D Modeling • Survey Applications • Oil Drilling
• Navigation Grade • Orientation Systems for • Survey Applications
Equipment for Large • Robotics
Performance Scale Geometries Drilling Applications
• Survey Applications
Acceleration Range, g Max. (Note 1) ±30 ±30 ±30 ±20
Scale Factor, mA/g (Note 2) 1.1 to 1.4 1.1 to 1.4 1.1 to 1.4 1.8 to 2.8
Bias, milli-g, Max. (@ 25° C) 40 20 40 20
Axis Alignment, mRad, Max. (@ 25° C) 1.5 ±1.5 1.5 4
Threshold and Resolution, μg, Max. 10 10 10 10
Bandwidth, Hz, Min. 300 300 300 300
Scale Factor Temp. Sens, PPM/°C, Max.: +55°C to +125°C : ±200 +25°C to +100°C : ±80 +55°C to +180°C: ±200 ±200
+100°C to +125°C : ±170 +100°C to +125°C : ±150 +100°C to +180°C: ±170
+125°C to +150°C : ±200
Bias Temp. Sens, μg/°C, Max. ±100 ±100 ±150 ±150
Scale Factor Stability (1 month composite) less than 250 ppm less than 350 ppm less than 250 ppm less than 220 ppm
Bias Stability (1 month composite) less than 250 μg less than 500 μg less than 250 μg less than 220 μg
Noise, mgrms, Max. (0Hz to 10kHz) (Max.) 3 3 3 4
Weight (grams) 55 55 55 25
Electrical
Input Voltage, Vdc ±12 to ±18 ±12 to ±18 ±12 to ±18 ±12 to ±18
Input Current (quiescent), mA (Max.) 12 12 12 20
Environmental -55°C to +125°C -55°C to +150°C -55°C to +180°C -40°C to +180°C
25 Hz to 500 Hz, 25g 25 Hz to 500 Hz, 25g 25 Hz to 500 Hz, 25g 25 Hz to 500 Hz, 30g
Operational Temp Range, °C
1000 1000 1000 1000
Vibration, (Sine)
Shock, g (0.5 msec, 1/2 sine)
Note 1: Specifications apply and are characterized up to ±1g range. The accelerometer is capable of supplying acceleration information up to ±30g but
at reduced accuracy.
Note 2: Voltage output via customer supplied load resistor.
