Three-axis gyros, three-axis acellerometers, three-axis magnetometer and a pressure sensor: $605 in batches of at least 100. Someday this will cost $6 and life will be good.
Jeff, yes every time we post about a new sensor people make that point. I guess it's like "4G" at this point--mostly marketing. But that's the terminology the industry uses, so I guess we're stuck with it.
Amusedly (and rhetorically) I ask: At what point did the world begin interpreting "Degrees Of Freedom" as "Number of Independent Sensors"?
I suppose calling it "10 Independent Sensors based on 4 Different Sensing Modalities providing observations of the 6 Degrees of Translational and Rotational Motion" is a bit wordy.
Comments
I was under the guise of the 9 Degrees of Freedom board was this
Attitude: Gyro
1) Pitch
2) Roll
3) Yaw
Environmental Effects: Accelerometer
4) Lift/Gravity
5) Thrust/Drag
6) Angular Moment
Spherical Location and Vectoring: Magnetometer
7) hemisphere
8) ascension
9) declination
Add to that having an independant system to offset sensor drifts and manufacturing inconsistancies:
Spherical Location and Vectoring GPS:
10) Lat
11) Long
12) Altitude
of course there are corrections as well
Location: Mag North vs True north
Speed: Ground Speed vs Air Speed
the list goes on... but I do agree, its been used many ways.
Amusedly (and rhetorically) I ask: At what point did the world begin interpreting "Degrees Of Freedom" as "Number of Independent Sensors"?
I suppose calling it "10 Independent Sensors based on 4 Different Sensing Modalities providing observations of the 6 Degrees of Translational and Rotational Motion" is a bit wordy.
Probably next year!