Where, Ï = Density of the air, V = velocity, WPD = Wind Power Density ; Related Calculators Actuator Disk Efficiency Blade Solidity Coefficient of Lift of … The simplest formula is : Where P = Mechnical power in kW Q = flow rate in the pipe (m3/s) ρ = density (kg/m3) g = Acceleration of gravity (m/s²) H = waterfall height (m) η = global efficiency ratio (usually between 0,7 and 0,9) Calculator. In addition, for pulsed lasers it calculates energy density based on the repetition rate of the laser and average power or the pulse energy. The average power at the antenna: In watts The antenna gain in dBi: Enter 2.2 for dipoles; add 2.2 for antennas rated in dBd The distance to the area of interest: From the centre of the antenna, in feet The frequency of operation: In MHz Ground Reflection Effects In most cases, the ground reflection factor is needed to provide a …

The Gaussian profile is important since it defines the basic profile of a single mode laser, other profiles are, in fact, characterized by their ‘closeness’ to an ideal gaussian using the M^2 figure of merit. In addition, for pulsed lasers it calculates energy density based on the repetition rate of the laser and average power or the pulse energy. How to calculate output power of a hydroelectric turbine?

The Ophir power density calculator returns the power density of a laser beam based on the above explanations. As we wrote here before (and you are already probably well aware of) – Lasers can be dangerous.In this Blog we’ll explain the details of how power density depends on the beam profile of your laser and how to calculate it using our There are two basic laser beam profiles, Gaussian and Flat top.

The following table provides conversions for wavelength (from frequency), VSWR (from forward and reflected power) and various other … Please provide any two values to the fields below to calculate the third value in the density equation of The density of a material, typically denoted using the Greek symbol ρ, is defined as its mass per unit volume. You can define either a simple Gaussian beam or a Flat Top beam with a circular or rectangular profile.

However, it is important to pay special attention to the units used for density calculations. You only need to take the total power, Calculating a Guassian beam power density is less straight forward since the power density changes at every point in the beam. 65 to estimate power density in the main lobe of an antenna, with use of the EPA-recommended ground reflection factor as an option. Average acceleration is the object's …

Antenna Power Input (P): [mW] Antenna Power Gain (G): Distance to Center of Radiation of Antenna (R): [cm] Power density (S): [mW/cm 2] Latest Calculator Release . This program is intended for approximate far-field calculations. It is useful to carefully write out whatever values are being worked with, including units, and … Calculate Radio Frequency Power Density. - Usually this calculation will be an approximation of the real field strength due to near field … Here we relate only to Gaussian and Flat top profiles.The calculation of the power density of a Flat Top profile is straight forward. It is useful to carefully write out whatever values are being worked with, including units, and perform dimensional analysis to ensure that the final result has units of Below is a table of units in which density is commonly expressed, as well as the densities of some common materials.

Given: P t = 100 watts G t = 10 (dimensionless ratio) R = 100 ft This equation produces power density in watts per square range unit. Enter your own values in the white boxes, results are displayed in the green boxes. There are many different ways to express density, and not using or converting into the proper units will result in an incorrect value. It may overestimate the actual field strength of high-gain antennas in the near field (within several wavelengths of the …