I tried to check the possibilty of the Earth rotation rate measure. I cannibalized old HDD to prepare the rotating table, attached the device to the plate, and performed the series of recordings, turning the device by 180° every 75 seconds, after 10 rotations the results were calculated. 15 series of 10 rotations each were recorded.

Certainly i could catch only horizontal component (vertical is invisible due to linear acceleration effect), i.e. i need to multiply the value by the cos(55.75°). The latitude of my office is 55.75°.

Can you bet the average measured value and STDEV for 15 series of 10 rotations each?

Do you think this research worth writing an artice?

Test no

Sensor no

Active axis

Value measured

Relative to actual

1

1

X

±0.002176°/s0.924

2

1

X

±0.002727°/s1.160

3

1

Y

±0.002235°/s0.951

4

1

X

±0.002408°/s1.024

5

1

Y

±0.002527°/s1.075

6

1

Y

±0.003327°/s1.415

7

1

Y

±0.002918°/s1.241

8

1

X

±0.003391°/s1.442

9

1

X

±0.002346°/s0.998

10

2

Y

±0.002116°/s0.900

11

2

X

±0.002533°/s1.077

12

2

X

±0.002394°/s1.018

13

2

Y

±0.002028°/s0.862

14

2

X

±0.002095°/s0.891

15

2

Y

±0.002287°/s0.972

16

2

Y

±0.002189°/s0.931

average

average

±0.002481°/s1.055

STDEV

±0.000403°/sActual value computed as 360°/86164*cos(55.75°)=0.002351°/s