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Navigation-Grade Performance Accelerometer


The lead time on the AI-Q-2020 is available for delivery in four weeks for quantities between the range of 5-20. Contact us for a quote

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


Pins with AI-Q-2020


Additional product specifications, outline drawings and block diagrams, and test data are available on request.






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


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)
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


Temperature Model
Quiescent Current per Supply mA ≤16
Quiescent Power @±15VDC mW ≤480
Input Voltage VDC ±13 to ±28
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


                                                             *The AI-Q-2120 is the commercial alternative with a limited measurement range of ±15g


The AI-Q-2020 is ideal for a wide range of modern, high-tech and precision-guided systems.

The commercial alternative is the AI-Q-2120 which is based on the same design and production process, with the same performance parameters, but with a measurement range limited to 15g. 

-Land & Marine Vehicles

-Inertial Navigation Systems (INS)

-Inertial Measurements (IMU)

-Attitude and Heading Reference Systems (AHRS)

-Orientation systems for the oil drilling industry 

-Train & rail measurement systems 

-Robotic systems control 

-Aircrafts, UAVs & Helicopters


Browse our library of inertial sensor technical papers for an in-depth view of our  Quartz Pendulous Accelerometers.

Customised Solution

InnaLabs® have the Engineering resources to provide custom solutions to meet your project needs, with excellent pre and post-sale customer support. 

Flexibility for Project Requirements

InnaLabs® dedicated and experienced engineers are committed to customer satisfaction by providing innovative technology, quality products, and custom solutions to meet your project needs. More questions? Evaluations and low volume deliveries are available quickly and our product team are waiting to hear from you. 

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Similar Products 

InnaLabs® offers a range of accelerometers based on the same design and production processes, including the AI-Q-2010, AI-Q-2030 and AI-Q-20X0 families.