AI-Q-2020 Navigation-Grade Performance Accelerometer

Quartz Pendulous Accelerometers for Navigation Systems

InnaLabs® Navigation Grade Accelerometers focus on consistent reliability combined with long-term stability, making them the optimal solution for high-grade navigation applications and this position remains largely unchallenged to this time.

Performance Statistics

Input Range +/- 60 g
One-year Repeatability <600 ppm
Temperature Sensitivity <180 ppm/°C

High-Performance Sensor

The AI-Q-2020 is built with Quartz Flexure technology to deliver true navigational grade performance. The AI-Q-2020 features an internal temperature sensor that allows the user to carry out temperature calibration and compensation, enhancing the bias, scale factor and axis misalignment performance over temperature.

Key Performance

Navigation grade performance
High input range
Analogue current output
High stability under temperature changes
High reliability
Internal temperature sensor for thermal compensation
Analogue Current Output
Dual built-in self-test

Description

Specification

	Units	Values
Performance
Input Range*	g	±60
Bias	mg	<4
One-year Composite Repeatability	µg	<220
Temperature Sensitivity	µg/°C	<30
Scale Factor	mA/g	1.2 to 1.46
One-year Composite Repeatability	ppm	<500
Temperature Sensitivity	ppm/°C	<180
Axis Misalignment	µrad	<2000
One-year Composite Repeatability	µrad	<100
Vibration Rectification	µg/g2 RMS	≤40 (50-500 Hz) ≤60 (500 – 2,000 Hz)
Intrinsic Noise	µg RMS	≤7 (0.1-10 Hz) ≤70 (10-500 Hz) ≤1,500 (1500-10,000 Hz)
Environment
Operating Temperature	°C	-55 to +95
Shock	g	250
Vibration Peak Sine	g, Hz	15g @ 20 to 2000 Hz
Resolution/Threshold	µg	<1
Bandwidth	Hz	>300
Temperature Model
		Yes
Electrical
Quiescent Current per Supply	mA	≤16
Quiescent Power @±15VDC	mW	≤480
Input Voltage	VDC	±13 to ±28
Physical
Weight	g	71±4
Diameter below mounting surface	mm	Ø 25.45 Max
Height – bottom to mounting surface	mm	14.58 Max
Case Material		300 Series Stainless Steel