Navigation Accelerometers

The Inertial Navigation Standard by Which Others are Measured

 

Honeywell offers the predominant sensor used in today's commercial and military aircraft strap-down inertial navigation systems. The long-term stability, superior reliability and overall value make Honeywell’s accelerometers the best value on the market today.

QA2000 Q-Flex Accelerometer
Honeywell’s QA2000 is the predominant sensor used in today's commercial and military aircraft strap-down inertial navigation systems. The long-term stability, superior reliability and overall value make the QA2000 one of the best value inertial-grade accelerometer available on the market today.

Features:

• Excellent turn-on repeatability performance
• Environmentally rugged
• Analog output
• Field-adjustable range
• Three fastener precision mounting flange
• Internal temperature sensor for thermal compensation
• Dual built-in self-test

QA3000 Q-Flex Accelerometer
Honeywell’s most accurate accelerometer is its QA3000. Built on the same production line as the industry-standard QA2000 Accelerometer, the QA3000 Accelerometer has the same inherent quality, reliability and long-term performance characteristics of the QA2000 Accelerometer. Primary applications include spacecraft navigation and control systems.

Features:

• Highest performance accelerometer available
• Excellent turn-on repeatability and stability performance
• Analog output
• Three fastener precision mounting flange
• Field-adjustable range
• Dual built-in self test
• Internal temperature sensor for thermal compensation

As with the entire Q-Flex family of accelerometers, the QA2000 and QA3000 both feature a patented Q-Flex etched-quartz-flexure seismic system. The use of an amorphous quartz proof-mass structure provides excellent bias, scale factor and axis alignment stability.

The integral Q-Flex electronics develops an acceleration-proportional output current providing both static and dynamic acceleration measurement. Through the use of a customer supplied output load resistor, appropriately scaled for the acceleration range of the application, the output current can be converted into a voltage. Both the QA2000 and QA3000 include a current-output, internal temperature sensor. Through the use of a temperature-compensating algorithm; bias, scale factor and axis misalignment performance is dramatically improved.

Below is a summary of the characteristics of QA2000 and QA3000 Accelerometers.

Performance	QA3000-030	QA3000-020	QA3000-010	QA2000-030	QA2000-020	QA2000-010
Input Range [g]	±60	±60	±60	±60	±60	±60
Bias [mg]	<4	<4	<4	<4	<4	<4
One-year Stability [µg]	<40	<80	<125	<160	<220	<350
Temperature Sensitivity [µg/ºC]	<15	<15	< 25	< 30	< 30	< 30
Temperature Modeling Residual [µg]	<15	< 30	< 45	< 60	< 60	< 100
Scale Factor [mA/g]	1.20 to 1.46	1.20 to 1.46	1.20 to 1.46	1.20 to 1.46	1.20 to 1.46	1.20 to 1.46
One-year Stability [ppm]	<80	<160	<250	<310	<350	<390
Temperature Sensitivity [ppm/ºC]	<120	<120	<120	<180	<180	<180
Temperature Modeling Residual [ppm]	<40	<70	<90	<100	<125	<200
Axis Misalignment [µrad]	<1000	<1000	<1500	<2000	<2000	<2000
One-year Stability [µrad]	<70	<80	<100	<100	<100	<100
Temperature Sensitivity [µRad/°C]   Temperature Modeling Residual [µRad]	<4	<4	<4	<4	<4	<5
	<15	<30	<45	<60	<60	<100
Vibration Rectification [µg/g2rms]	<10 (50-500 Hz) <35 (500-2000 Hz)	<15 (50-500 Hz) <40 (500-2000 Hz)	<20 (50-500 Hz) <50 (500-2000 Hz)	<20 (50-500 Hz) <60 (500-2000 Hz)	<40 (50-500 Hz) <60 (500-2000 Hz)	<40 (50-500 Hz) <150 (500-2000 Hz)
Intrinsic Noise [µg-rms]	<7 (0-10 Hz) <70 (10-500 Hz) <1500 (500-10,000 Hz)	<7 (0-10 Hz) <70 (10-500 Hz) <1500 (500-10,000 Hz)	<7 (0-10 Hz) <70 (10-500 Hz) <1500 (500-10,000 Hz)	<7 (0-10 Hz) <70 (10-500 Hz) <1500 (500-10,000 Hz)	<7 (0-10 Hz) <70 (10-500 Hz) <1500 (500-10,000 Hz)	<7 (0-10 Hz) <70 (10-500 Hz) <1500 (500-10,000 Hz)
Environment	QA3000-030	QA3000-030	QA3000-030	QA2000-030	QA2000-030	QA2000-030
Operating Temperature Range [ºC]	-28 to +78	-55 to +95	-55 to +95	-55 to +95	-55 to +95	-55 to +95
Shock [g]	100	150	150	250	250	250
Vibration Peak Sine [g]	15 @ 20-2000 Hz	15 @ 20-2000 Hz	15 @ 20-2000 Hz	15 @ 20-2000 Hz	15 @ 20-2000 Hz	15 @ 20-2000 Hz
Resolution/Threshold [µg]	<1	<1	<1	<1	<1	<1
Bandwidth [Hz]	>300	>300	>300	>300	>300	>300
Thermal Modeling	4th Order	4th Order	4th Order	4th Order	4th Order	4th Order
Electrical	QA3000-030	QA3000-020	QA3000-010	QA2000-030	QA2000-020	QA2000-010
Input Voltage [VDC]	±13 to ±28	±13 to ±28	±13 to ±28	±13 to ±28	±13 to ±28	±13 to ±28
Quiescent Current per Supply [mA]	<16	<16	<16	<16	<16	<16
Quiescent Power [mW] @ ±15 VDC	<480	<480	<480	<480	<480	<480
Physical	QA3000-030	QA3000-020	QA3000-010	QA2000-030	QA2000-020	QA2000-010
Weight [grams]	71± 4	71± 4	71± 4	71± 4	71± 4	71± 4
Diameter below mounting surface [inches]	Ø1.005 Max	Ø1.005 Max	Ø1.005 Max	Ø1.005 Max	Ø1.005 Max	Ø1.005 Max
Diameter of mounting holes [inches}	Φ1.030 to Φ1.045	Φ1.030 to Φ1.045	Φ1.030 to Φ1.045	Φ1.030 to Φ1.045	Φ1.030 to Φ1.045	Φ1.030 to Φ1.045
Height - bottom to header [inches]	.970 ±.011	.970 ±.011	.970 ±.011	.970 ±.011	.970 ±.011	.970 ±.011
Height - bottom to mounting surface [inches]	.585 Max	.585 Max	.585 Max	.585 Max	.585 Max	.585 Max
Mounting Configuration	3 pt Flange	3 pt Flange	3 pt Flange	3 pt Flange	3 pt Flange	3 pt Flange
Case Material	300 Series Stainless Steel	300 Series Stainless Steel	300 Series Stainless Steel	300 Series Stainless Steel	300 Series Stainless Steel	300 Series Stainless Steel
Outline Drawing	QA3000	QA3000	QA3000	QA2000	QA2000	QA2000

 

Accelerometers exported from the United States must be done in accordance with the Export Administration Regulations (EAR) and/or the International Traffic in Arms Regulations (ITAR) as applicable.