![]() Since this is a measurement geometry conversion - this cannot be helped. Again, this calculator makes several assumptions which directly affect the accuracy of the conversion. OUTPUT: This is the APPROXIMATE TOTAL WATT OUTPUTof the lamp. In many cases, the default of 30 degrees is sufficient for the expected accuracy of this conversion process. This can be a difficult property of a light source to measure, which is a contributing factor for why any conversions done with this calculator are to be considered approximate and should only be used as a last resort when measuring watts in an integrating sphere is not possible. This is the solid-angle of light that is occluded or blocked by the lamp base.This angle can be any number between 0 (perfectly isotropic source) to 120 degrees. STEP 3: Enter the SHADOW DEGREES (solid angle) in the numerical stepper here. millimeters or inches) you will have to convert these numbers up to meters or feet first. If you are measuring in units less than meters or feet (i.e. Select whether the distance is in meters or in feet. This number can be entered in decimal format (i.e. STEP 2: Enter the MEASUREMENT DISTANCE at which the reading in Step 1 was taken, in this box. Select what units - W/m 2 or W/cm 2 the measurement was taken in. STEP 1: Enter the ORIGINAL measurement taken in W/m 2 or W/cm 2 with your light meter and sensor here. Any results with this converter must be considered approximate. You must be aware of what each measurement geometry implicitly assumes before conversion. For example a 50 watt electric fan running for 50 hours will consume 50 watt x 50 hours = 2500 watt hours = 2.5 kilowatt hours of electricity = 2.5 units of electricity.NOTE: Converting between geometry-based measurement units is difficult and should only be attempted when it is impossible to measure in the actual desired units. Units as described in electricity bill a.k.a kilowatt hour is the energy consumption of a device.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |