Pulse-20 specifications have been defined, validated and qualified over -40°C to +85°C and in all conditions (thermal, vibrations, shocks and lifetime). The performance parameters presented in this document express typical (1 σ), and 3 sigmas specifications.

Each Pulse-20 Inertial Measurement Unit is carefully calibrated over the whole temperature range using a high precision two axis motion simulator (see knowledge center). The IMU performance is then validated 24hours after the calibration at several temperature points with a two axis rate table to ensure that no performance deviation is observed.

This rigorous manufacturing process guarantees consistent results over lifetime and in all environmental conditions. Advanced filtering techniques are also used to allow PULSE-40 sustains difficult vibrating environments.

The following specifications are applicable over the full temperature range -40 to 85°C and RH < 80% unless stated otherwise.

Preliminary specification

This specification is preliminary and may be updated to reflect our full qualification and aging results.


Accelerometers specifications


TypicalUnitsNotes
Measurement range±40g
Scale Factor error100ppmOver ±1g, one year accelerated aging
Non-linearity (ppm of FS)1500ppmOver ±1g, one year accelerated aging
Long-term bias repeatability1500µgOne year accelerated aging
In-run bias instability14µgAllan Variance method, constant temperature
Velocity Random Walk0.03m/s/√hAllan Variance method, constant temperature
Misalignement0.35mradOver temperature range
Orthogonality0.1mradOver temperature range
Vibration Rectification Coefficient (VRC)0.05mg/g²10g RMS - random vibrations 20Hz to 2kHz
Bandwidth390Hz-3dB point
Sampling rate4.0kHz

Gyroscopes specifications


TypicalUnitsNotes
Measurement range

±1000 

°/s


Scale Factor error500ppmOne year accelerated aging
Non-linearity (ppm of FS)50ppmOne year accelerated aging
Long-term bias bias repeatability750°/hOne year accelerated aging
In-run bias instability7°/hAllan Variance method, constant temperature
Angular Random Walk0.18°/√hAllan Variance method, constant temperature
Misalignement0.35mradOver temperature range
Orthogonality0.1mradOver temperature range
Vibration Rectification Coefficient (VRC)<1°/h/g²10g RMS - random vibrations 20Hz to 2kHz
Acceleration sensitivity<45°/h/gTested over ±1g
Bandwidth133Hz-3dB point
Sampling rate10kHz