Products
VBOX IMU05 / IMU05-S Inertial Measurement Unit
IMU05 / IMU05-S
●Two versions: IMU05 (1.2°/h bias drift) and IMU05-S (0.8°/h bias drift)
●Three gyroscopes and three accelerometers measure pitch, roll and yaw rate plus X, Y, Z acceleration
●±450°/s angular rate range in each axis
●Acceleration range: IMU05 ±8 g / IMU05-S ±10 g
●Pitch/roll angle accuracy with VBOX 4: 0.02° RMS (IMU05-S: 0.013° RMS)
●Yaw angle accuracy with VBOX 4: 0.1° RMS (IMU05-S: 0.07° RMS)
●Internal temperature compensation
●Use standalone (CAN or Serial interface) or with VBOX 3i / VBOX 4 as an inertial navigation system (INS)
●IP65 / IP67 with Lemo blanking plugs
Overview
VBOX IMU05 uses three high-precision gyroscopes and three accelerometers to measure pitch, roll and yaw rate, as well as X, Y and Z acceleration.
IMU05 is available in two versions: the standard IMU05 has a gyro bias stability of 1.2°/h, while IMU05-S uses high-precision MEMS gyroscopes with a bias stability of 0.8°/h.
Both versions can be used as a standalone sensor, connected and configured via the CAN or Serial interface, or together with a VBOX data logger for precise synchronisation to GNSS time.
When combined with GNSS data from a VBOX 3i or VBOX 4, the IMU maintains measurement accuracy when satellite reception is interrupted or weakened.
Key Features
●GNSS integration
Used with VBOX as an inertial navigation system (INS), IMU data is blended with GNSS to deliver accurate position, velocity and body angles, even during GNSS outages.
●Fast initialisation
With VBOX 4 and IMU05-S, full accuracy is reached after a simple acceleration/brake event – no large area or repeated figure-eights needed.
●High accuracy
Synchronous 32-bit sampling of each internal sensor provides high-resolution angular rate and acceleration measurement.
●Low drift, low noise
Bias drift as low as 0.8° per hour (IMU05-S; 1.2°/h for IMU05) keeps results stable on long runs and reduces recalibration.
●Internal temperature compensation
Fully calibrated for temperature effects, scale factor, bias and misalignment errors for consistent performance in hot and cold conditions.
●CAN bus interface
As a standalone sensor, IMU05 connects easily to existing test setups via the CAN or Serial interface.
IMU05 vs. IMU05-S
The standard IMU05 offers high-precision angular rate and 3-axis acceleration measurement at a very competitive price. IMU05-S uses advanced MEMS gyro technology to further improve bias stability, acceleration range and resolution.
IMU05 (V2)
●Bias drift: 1.2°/h
●Angular rate range: ±450°/s in each axis
●Acceleration range: ±8 g in each axis
●Internal temperature compensation
●Angular rate resolution: 2.3 x 10⁻⁷ °/s
●Acceleration resolution: 3.8 x 10⁻⁹ g
●CAN or Serial interface
●Pitch/roll angle accuracy with VBOX 4: 0.02° RMS
●Yaw angle accuracy with VBOX 4: 0.1° RMS
●IP65 / IP67 with Lemo blanking plugs
IMU05-S
●Bias drift: 0.8°/h
●Angular rate range: ±450°/s in each axis
●Acceleration range: ±10 g in each axis
●Internal temperature compensation
●Angular rate resolution: 2.5 x 10⁻¹⁰ °/s
●Acceleration resolution: 6 x 10⁻¹³ g
●CAN or Serial interface
●Pitch/roll angle accuracy with VBOX 4: 0.013° RMS
●Yaw angle accuracy with VBOX 4: 0.07° RMS
●IP65 / IP67 with Lemo blanking plugs
Benefits of IMU Integration
High-speed GNSS is the most accurate way to measure velocity when the sky view is clear, but buildings and tall trees cause signal interruptions, dropouts and spikes. Integrating IMU data with the VBOX data logger improves:
●Velocity: lower noise and precise measurement throughout GPS dropouts
●Heading: more consistent than GPS-only data, even at low speeds
●Position: corrects noisy position readings caused by dropouts and reflections on tree-lined roads
●Acceleration: smoother, more accurate longitudinal acceleration during ABS brake stops
●Lever-arm compensation for brake testing
On tall vehicles with long suspension travel, the roof-mounted GPS antenna sees a larger change in velocity than the vehicle's centre of gravity when the brakes are applied, causing a speed overshoot. Mounting the IMU at the centre of gravity with a suitably upgraded VBOX 3i or VBOX 4 compensates for this lever-arm effect for consistent brake stop results. High-dynamic manoeuvres such as lane changes also benefit.
Mounting Options
●On the roof
A dedicated IMU roof mount co-locates the IMU with the GNSS antenna, so the distance between them does not need to be measured. This avoids measurement errors and improves Kalman filter performance. Non-ferrous roofs (aluminium, carbon fibre or glass) require the Vacuum Tripod Mount (RLACS342).
●Inside the vehicle with a mounting pole
The Racelogic mounting pole (RLACS212-v2) adjusts between 70 and 150 cm, with a further 20 cm extension, and holds the IMU with the IMU pole mount bracket (RLACS294).
●Fixed to the vehicle body
Mount the IMU level with the ground and aligned with the direction of travel, as close to the GNSS antenna as possible. Measure the antenna position relative to the IMU to within ±5 cm and enter it via VBOX Test Suite or VBOX Manager.
Technical Specifications
Gyroscopes (IMU05 V2 / IMU05-S)
●Dynamic range: ±450°/s / ±450°/s
●Bias stability: ±1.2°/h / ±0.8°/h
●Angle random walk (ARW): 0.08°/√h / 0.06°/√h
●Scale factor: 0.05% / 0.05%
Accelerometers (IMU05 V2 / IMU05-S)
●Dynamic range: ±8 g / ±10 g
●Bias stability: 14 μg / 12 μg
●Velocity random walk (VRW): 0.02 (m/s)/√h / 0.025 (m/s)/√h
●Scale factor: 0.1% / 0.1%
●Linearity (% of full-scale range): 0.1% / 0.1%
Environmental & Physical
●Operating temperature: -40 to +85 °C
●Shock survival: 1000 g (half-sine, 0.5 ms)
●Power consumption: <1 W
●Input voltage: 7–30 V DC
●Dimensions: 60 x 76 x 29 mm
●Mass: 160 g
●Environmental protection: IP65 / IP67 with RLACS080 blanking plugs
*Inertial measurement sensors are highly sensitive mechanical systems. Severe vibration or heavy knocks can affect their performance and life span; gyroscope and accelerometer specifications are guaranteed for a maximum of 2 years from the date of purchase.
VBOX IMU05 uses three high-precision gyroscopes and three accelerometers to measure pitch, roll and yaw rate, as well as X, Y and Z acceleration.
IMU05 is available in two versions: the standard IMU05 has a gyro bias stability of 1.2°/h, while IMU05-S uses high-precision MEMS gyroscopes with a bias stability of 0.8°/h.
Both versions can be used as a standalone sensor, connected and configured via the CAN or Serial interface, or together with a VBOX data logger for precise synchronisation to GNSS time.
When combined with GNSS data from a VBOX 3i or VBOX 4, the IMU maintains measurement accuracy when satellite reception is interrupted or weakened.
Key Features
●GNSS integration
Used with VBOX as an inertial navigation system (INS), IMU data is blended with GNSS to deliver accurate position, velocity and body angles, even during GNSS outages.
●Fast initialisation
With VBOX 4 and IMU05-S, full accuracy is reached after a simple acceleration/brake event – no large area or repeated figure-eights needed.
●High accuracy
Synchronous 32-bit sampling of each internal sensor provides high-resolution angular rate and acceleration measurement.
●Low drift, low noise
Bias drift as low as 0.8° per hour (IMU05-S; 1.2°/h for IMU05) keeps results stable on long runs and reduces recalibration.
●Internal temperature compensation
Fully calibrated for temperature effects, scale factor, bias and misalignment errors for consistent performance in hot and cold conditions.
●CAN bus interface
As a standalone sensor, IMU05 connects easily to existing test setups via the CAN or Serial interface.
IMU05 vs. IMU05-S
The standard IMU05 offers high-precision angular rate and 3-axis acceleration measurement at a very competitive price. IMU05-S uses advanced MEMS gyro technology to further improve bias stability, acceleration range and resolution.
IMU05 (V2)
●Bias drift: 1.2°/h
●Angular rate range: ±450°/s in each axis
●Acceleration range: ±8 g in each axis
●Internal temperature compensation
●Angular rate resolution: 2.3 x 10⁻⁷ °/s
●Acceleration resolution: 3.8 x 10⁻⁹ g
●CAN or Serial interface
●Pitch/roll angle accuracy with VBOX 4: 0.02° RMS
●Yaw angle accuracy with VBOX 4: 0.1° RMS
●IP65 / IP67 with Lemo blanking plugs
IMU05-S
●Bias drift: 0.8°/h
●Angular rate range: ±450°/s in each axis
●Acceleration range: ±10 g in each axis
●Internal temperature compensation
●Angular rate resolution: 2.5 x 10⁻¹⁰ °/s
●Acceleration resolution: 6 x 10⁻¹³ g
●CAN or Serial interface
●Pitch/roll angle accuracy with VBOX 4: 0.013° RMS
●Yaw angle accuracy with VBOX 4: 0.07° RMS
●IP65 / IP67 with Lemo blanking plugs
Benefits of IMU Integration
High-speed GNSS is the most accurate way to measure velocity when the sky view is clear, but buildings and tall trees cause signal interruptions, dropouts and spikes. Integrating IMU data with the VBOX data logger improves:
●Velocity: lower noise and precise measurement throughout GPS dropouts
●Heading: more consistent than GPS-only data, even at low speeds
●Position: corrects noisy position readings caused by dropouts and reflections on tree-lined roads
●Acceleration: smoother, more accurate longitudinal acceleration during ABS brake stops
●Lever-arm compensation for brake testing
On tall vehicles with long suspension travel, the roof-mounted GPS antenna sees a larger change in velocity than the vehicle's centre of gravity when the brakes are applied, causing a speed overshoot. Mounting the IMU at the centre of gravity with a suitably upgraded VBOX 3i or VBOX 4 compensates for this lever-arm effect for consistent brake stop results. High-dynamic manoeuvres such as lane changes also benefit.
Mounting Options
●On the roof
A dedicated IMU roof mount co-locates the IMU with the GNSS antenna, so the distance between them does not need to be measured. This avoids measurement errors and improves Kalman filter performance. Non-ferrous roofs (aluminium, carbon fibre or glass) require the Vacuum Tripod Mount (RLACS342).
●Inside the vehicle with a mounting pole
The Racelogic mounting pole (RLACS212-v2) adjusts between 70 and 150 cm, with a further 20 cm extension, and holds the IMU with the IMU pole mount bracket (RLACS294).
●Fixed to the vehicle body
Mount the IMU level with the ground and aligned with the direction of travel, as close to the GNSS antenna as possible. Measure the antenna position relative to the IMU to within ±5 cm and enter it via VBOX Test Suite or VBOX Manager.
Technical Specifications
Gyroscopes (IMU05 V2 / IMU05-S)
●Dynamic range: ±450°/s / ±450°/s
●Bias stability: ±1.2°/h / ±0.8°/h
●Angle random walk (ARW): 0.08°/√h / 0.06°/√h
●Scale factor: 0.05% / 0.05%
Accelerometers (IMU05 V2 / IMU05-S)
●Dynamic range: ±8 g / ±10 g
●Bias stability: 14 μg / 12 μg
●Velocity random walk (VRW): 0.02 (m/s)/√h / 0.025 (m/s)/√h
●Scale factor: 0.1% / 0.1%
●Linearity (% of full-scale range): 0.1% / 0.1%
Environmental & Physical
●Operating temperature: -40 to +85 °C
●Shock survival: 1000 g (half-sine, 0.5 ms)
●Power consumption: <1 W
●Input voltage: 7–30 V DC
●Dimensions: 60 x 76 x 29 mm
●Mass: 160 g
●Environmental protection: IP65 / IP67 with RLACS080 blanking plugs
*Inertial measurement sensors are highly sensitive mechanical systems. Severe vibration or heavy knocks can affect their performance and life span; gyroscope and accelerometer specifications are guaranteed for a maximum of 2 years from the date of purchase.