1. What is Integer Part of Wavelength?

The integer part of wave length is the coarser part of the larger wavelength measurement while the finer part is determined more accurately from the smaller wavelength measurement. It represents the whole number of wavelengths in the measured path difference.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( M \) — Integer part of wave length
• \( 2D \) — Double path (distance travelled by the wave multiplied by 2)
• \( \delta\lambda \) — Fraction of wavelength (value when wavelength is multiplied to the phase difference)
• \( \lambda \) — Wavelength (distance between two successive crests or troughs of a wave)

Explanation: The formula calculates the integer number of complete wavelengths in the measured path difference by subtracting the fractional part from the total path and dividing by the wavelength.

3. Importance of Integer Part Calculation

Details: Calculating the integer part of wavelength is crucial in interferometry and wave measurement techniques where precise determination of path differences is required. It helps in resolving ambiguity in measurements where multiple wavelengths could fit in the measured path.

4. Using the Calculator

Tips: Enter double path in meters, fraction of wavelength in meters, and wavelength in meters. All values must be positive numbers with wavelength greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Why is the integer part important in wavelength measurements?
A: The integer part helps resolve measurement ambiguity when the path difference contains multiple complete wavelengths, allowing for more accurate distance measurements.

Q2: What is the significance of double path in this calculation?
A: Double path represents the total distance traveled by the wave in both directions (to and from the target), which is commonly used in interferometric measurements.

Q3: How does fraction of wavelength affect the calculation?
A: The fraction of wavelength represents the partial wavelength component that, when combined with the integer part, gives the precise total path difference measurement.

Q4: What are typical applications of this calculation?
A: This calculation is used in laser interferometry, optical metrology, radar systems, and any application requiring precise distance measurements using wave phenomena.

Q5: What units should be used for input values?
A: All input values should be in consistent units (typically meters) for accurate results. The calculator assumes metric units.