If a laser interferometer, positioned paralel to ground, measure rotation speed, what measure when vertical?
As you know, a ring-laser speed measurement, when it comes to its own axis (perpendicular to the plane of their own turns). This type of device detects rotation speed of the earth. But to measure this speed, this device parallel to the ground (see this page: http://www. Ring laser. Org. Nz / content / about_us. Phphttp is: / / www. Ring laser. Org. Nz / content / gross_ring_facility. php) Why is the ring laser is parallel to the ground, when is probably to be perpendicular to the axis of the earth when the earth rotation measure? What should be measured if there is a ring-laser perpendicular to the axis of the earth? Http://www. Ring laser. org. nz / content / gross_ring. php
Tagged with: Axis • Earth Rotation • ground • interferometer • Laser • Laser Interferometer • Laser Measurement • measure • paralel • positioned • Ring Laser • rotation • Rotation Speed • speed • Speed Measurement • vertical
perhaps axial velocity?
if u wouldnt place parallel to the ground it measured the speed. if u place the laser perpendicular to the IT is the speed when it is parallel, it is like the light action travell http://en Click on the links below. wikipedia. org / wiki / Image: Sagnac_interferometer. pnghttp: / / en. wikipedia. org / wiki / Ring_laserhttp: / / en. wikipedia. org / wiki / Sagnac_effect
Remember, rotation is a vector. The device measures the component of the rotation right around it’s own axis * *. The component of the rotation of the loop around its own axis through the Earth’s rotation = once per day times cos (theta) where theta is the angle between the two axes. The loop perpendicular to the axis of the earth makes the two axes in the same direction, which in the strongest signal. If you lay flat on the floor, theta = width.