Questions tagged [gyroscope]

Anything related to (electromechanical) gyroscopes and their control circuitry. A gyroscope is a device used for maintaining or measuring orientation in 3D space whose main component is a fast spinning (usually wheel-shaped) body.

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How can I properly measure a MEMS rate gyroscope's zero mean bias drift and are my measurements coherent?

I have been looking into Madgwick filters and fusion algorithms and on the original paper as well as some websites mentionning the subject, it is stated "The gyroscope zero bias will drift over ...
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58 views

Detector for a fiber optic gyroscope

I'm a navigation engineer, so I often have to deal with gyroscopes and their measurements. Out of curiosity, I've decided to build one myself and will give it a try with a Fiber Optics Gyroscope (FOG),...
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Quarternion disagreement between two BNO80 IMU

I'm trying to use two BNO80 orientation sensors to measure the deflection of a universal joint in both pitch and yaw (there are components in the way that prevent the use of rotary position sensors). ...
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955 views

Reading FIFO in LSM6DS3

What is the difference between reading the FIFO registers(FIFO_DATA_OUT_L,FIFO_DATA_OUT_H) and Sensor output registers(OUTX_L_XL to OUTZ_H_XL) both are same?which is recommended to get the raw data ...
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480 views

Should I be using a Standard Kalman Filter (KF) or an Extended Kalman Filter (EKF)?

So I am trying to implement a Kalman filter for an Inertial Measurement Unit (IMU) using an Arduino. I have 4 sensors: GPS Accelerometer Gyroscope Magnetometer To measure various vehicle properties ...
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477 views

Quadcopter balance with MPU-6050

It is not uncommon to see people asking about how to balance a quadricopter using MPU-6050. It's also common to see people answering that a PID controller is needed. However, people doesn't say how. ...
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MPU6050 (ACCEL_YOUT_H , ACCEL_YOUT_L) register , have constant value

every one I have problem with reading data of (ACCEL_YOUT_H , ACCEL_YOUT_L) registers , I wanted to stabilize quadcopter with this sensor , I already read data from these register correctly with ...
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BMG250: Understanding basic gyroscope output?

I've never used a gyroscope before. I chose Bosch BMG250 from the digikey search results. I was reading the datasheet and other info online on how a gyroscope works and I'm a bit lost. The output of ...
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36 views

Calculating differences in gyro values

I want to draw a distribution of the change in gyro values (my values are coming from android). I read here that magnitude is relevant. I came up with 2 ideas for formulas, but can't quite make sense ...
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What to look for in an Inertial Measurement Unit?

I'm trying to implement an inertial measurement unit (IMU) in a project of mine, but I don't have much experience in this field. There's some terminology that I don't understand. For example, what ...
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51 views

need help deciphering accel/gyro datasheet for i2c communication using python RPi

I have barely any knowledge in this area, the most I have done is used my RPi3 with pre-built python libraries for sensors such as ADS1115 so I didn't have to go through the process of understanding ...
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51 views

Filter gyroscope's error from linear acceleration?

I need to use 3-axis angular velocity data for my application, but the gyroscope outputs angular velocity when under linear acceleration (not rotating). Is there a way to filter this error?
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158 views

why gyroscope sample rate can be changed by frequency, while accelerometer sample rate cannot?

This is from the mpu6050 datasheet. In the datasheet, gyroscope sample rate can be changed by frequency, but accelerometer cannot. Why this happens?