#### The amount of radiation can be quantified in various ways. In photovoltaics, we usually use either. light intensity, also called energy flux or irradiance, which is energy **per** area **per** time, typically [W/m 2] or [mW/cm 2]; or; photon flux, which is the number of photons **per** area **per** time [cm -2 s -1].; → How to convert a spectrum from intensity to photon flux. How to convert hertz to cycles per **second** [Hz to cycle/s]: f cycle/s = 1 × f Hz. How many cycles per **second** in a hertz: If f Hz = 1 then. f cycle/s = 1 × 1 = 1 cycle/s. How many cycles per **second** in 7 hertz: If f Hz = 7 then. f cycle/s = 1 × 7 = 7 cycle/s. Note: Hertz is a metric unit of **frequency**. The greater the **pulse** repetition **frequency** f p (in **pulses** **per** **second**), the shorter the **pulse** repetition time T (interpulse period) and the shorter the maximum unambiguous range R max of the radar. R max must be larger than the Maximum Display Range (so-called: instrumented range).. Consider radar with **pulse** repetition **frequency** 1 000 Hz. The **pulse** period is its reciprocal value and is 1/ 1 000.

**pulse**-

**per**-

**second**" in English-Italian from Reverso Context: Based on Condor C2626 GPS core of Trimble Navigation Ltd, the receiver features a RS422 serial communication port and an open-collector

**pulse**. The time interval is known as "PRI", and also frequently called "PRT". The number of

**pulses**transmitted in one

**second**is called the "

**frequency**", and is most often referred to as the "PRF" (

**pulse**repetition

**frequency**). The "duty ratio" (often called the Duty Cycle) is the ratio of the

**pulse**width (PW) to the

**pulse**repetition

**frequency**(PRF), and .... a) improves resolution. b) increases the maximum depth that can be imaged. c) decreases the maximum depth that can be imaged. d) increases refraction. b. The amount of time that pulsed ultrasound is actually on is the... a)

**pulse**duration. b) frame rate. c) spatial

**pulse**length.