Estimating irradiance on a square planar surface

In summary, the conversation discusses a problem involving two square planar surfaces, one with an area of 4mm2 and the other with an area of 6mm2, and a total power of 1mW. The surfaces are located in different planes and at a distance of 10cm apart. The second surface is tilted 20 degrees towards the first. The question is how to compute or estimate the irradiance at the second surface, and if using a Lambertian point source with the same power would make it easier to estimate the irradiance on the first surface.
  • #1
vst98
51
0
Hi, I have a simple problem.

A Lambertian emitter has the shape of a square planar surface, with area Ae=4mm2,
total power P=1mW, and is located in yz plane.
Another square planar surface, with area Ad=6mm2, is located in the
xy plane, at a distance d=10cm to the Ae, and is tilted 20 Degrees toward the Ae
(see attached picture).

How do I go about to compute or estimate irradiance at Ad ?
 

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  • #2
Is there really is no one who can answer or give advice on this problem ?
What if instead of Ad I would have a Lambertian point source with the same power,
would this make it easier to give an estimate of irradiance on Ae surface ?
 

What is irradiance?

Irradiance is the amount of radiant energy per unit area that is incident on a surface. It is typically measured in watts per square meter (W/m²).

How is irradiance calculated?

Irradiance is calculated by dividing the radiant flux (in watts) by the surface area (in square meters) that the radiation is incident upon. It can also be calculated by measuring the incident radiation with a radiometer.

What factors affect the irradiance on a square planar surface?

The irradiance on a square planar surface can be affected by factors such as the angle of incidence of the radiation, the distance from the radiation source, atmospheric conditions, and the reflectivity of the surface.

Why is it important to estimate irradiance on a square planar surface?

Estimating irradiance on a square planar surface is important in various fields such as solar energy, agriculture, and materials testing. It allows us to understand the amount of energy or radiation that is incident on a surface, which can help in designing efficient systems or predicting the behavior of materials.

What are some methods for estimating irradiance on a square planar surface?

Some methods for estimating irradiance on a square planar surface include using mathematical models and equations, measuring the incident radiation with instruments such as pyranometers, and using computer simulations. The choice of method depends on the specific application and the available resources.

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