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9 Threads found on edaboard.com: Solid Angle

MPU-6050 angle readings under mechanical vibrations

I assume this effect is due to mechanical vibrations caused by motors. Did you try clamping the aircraft to a solid object, then take readings? That would quiet the mechanical vibrations.

solution for balanis problem

An antenna has a beam solid angle that is equivalent to a trapezoidal patch (patch with 4 sides, 2 of which are parallel to each other) on the surface of a sphere of radius r. The angular space of the patch on the surface of the sphere extends between π/6 ≤ θ ≤ π/3(30◦ ≤ θ ≤ 60◦) in latitud

Regarding the laser diode(LM8-650) beam offset after 50 metres

laser diodes are fabricated (packaged) using various UV cure epoxies. All epoxies outgas. I would guess that the epoxy starts out solid, but then heats up, outgasses and there is a slight variation of the dielectric constant as it outgasses, and at some point the outgassing becomes minimal so the lens/adhesive system returns to its original shap

What is the light intensity and how to find it ?

candela is a measure of light intensity. steradian is a measure of 3-dimensional (solid) angle. 1 candela is .0015 Watt/steradian. There are many, many light measuring instruments out there. You need to determine what your requirements are before we can suggest 'the cheapest way'.

5V Ac lamp Intensity controller

Most economic method is phase angle control ("dimmer") at the primary, using a dimmer circuit designed for 400 Hz and transformer load. At the secondary, MOSFET solid state relays can be used for phase angle control, triac voltage drop would be most likely too high.

Radiation resistance and gain of an antenna

Radiation intensity is the power radiated per unit solid angle as well it also holds a relationship with directivity, where directivity in a direction is the radiation intensity in that direction over an averaged radiation intensity in all gain is efficiency times directivity. so radiation intensity

Radiated power per unit Solid Angle

Hi, solid angle is the spatial angle. It is different from the planar angle. An example is the angle at the vertex of a cone. An antenna radiates energy in a solid angle defined by the azimuth angle and elevation angle. Mathematically, the (...)

What happens to the light energy lost in destructive interference?

Your illustration dose not show. In general, you can think of the same effects as in gain antennas. The waves are phased to subtract in some directions and add in others. The total power radiated is the same; it is just concentrated in a smaller solid angle.

copper pouring in protel dxp

do you mean on a single/double sided board? if so just goto Place/Polygon. setup you minimum grid (0 for solid) and track size/angle. select Gnd (or whatever you called it) in the net selector. select pour over same net and remove dead copper and away you go. if you mean on a multilayer board (a gnd plane) you need to set it up in the layer stack