- New
P2210101 - Measuring the Velocity of Light
Reference :
P2210101
Function and Applications
This complete system enables the measurement of the velocity of light in air, as well as in transparent media such as liquids and solids. It is ideally suited for laboratory experiments, demonstrations, and educational purposes in optics.
Principle of Operation
The light intensity is modulated, and the phase relationship between the transmitted and received signals is analyzed. The velocity of light is calculated based on the relationship between phase variation and the optical path length.
Benefits
- Measure the speed of light yourself
- Analyze how light velocity varies across different materials
- Compact setup suitable for tabletop use
- Combined light speed and distance measurement in one device
- Advanced digital measurement technology for high accuracy
- Simple design with minimal adjustment requirements
- Up to 2% accuracy using phase comparison of a high-frequency modulated laser
- Can be used with or without an oscilloscope
- Integrated display of all relevant parameters (ƒ, Δφ, Δt, Δx)
Experimental Tasks
- Determine the velocity of light in air
- Measure the velocity of light in water and synthetic resin
- Calculate the refractive indices of different media
Learning Objectives
- Refractive index
- Wavelength
- Frequency
- Phase
- Modulation
- Electric field constant
- Magnetic field constant
Technical Specifications
- Modulation frequency: 50.0 MHz (quartz stabilized)
- Laser safety class: Class 2 according to DIN EN 60825-1
- Digital display: 3-digit LED display
- Digit height: 20 mm
- Operating voltage: 12 VDC (12 VDC / 2.25 A power supply included)
- Power consumption: 5 W
Scope of Delivery
- 1 light velocity measuring apparatus
- 1 retroreflector with holder
- 1 power supply 12 V / 2 A
- 1 slide mount for optical bench
- 1 optical bench (length: 1800 mm)
- 1 holder for measuring instrument
- 1 acrylic glass cylinder with holder
- 1 tubular cell with holder
- 1 USB data cable
- 1 digital storage oscilloscope, 2 channels
- 2 screened BNC cables (length: 1 m)
P2210101
Data sheet
- HS
- 90230010
Specific References
- MPN
- P2210101
Reference :
P2210101
Function and Applications
This complete system enables the measurement of the velocity of light in air, as well as in transparent media such as liquids and solids. It is ideally suited for laboratory experiments, demonstrations, and educational purposes in optics.
Principle of Operation
The light intensity is modulated, and the phase relationship between the transmitted and received signals is analyzed. The velocity of light is calculated based on the relationship between phase variation and the optical path length.
Benefits
- Measure the speed of light yourself
- Analyze how light velocity varies across different materials
- Compact setup suitable for tabletop use
- Combined light speed and distance measurement in one device
- Advanced digital measurement technology for high accuracy
- Simple design with minimal adjustment requirements
- Up to 2% accuracy using phase comparison of a high-frequency modulated laser
- Can be used with or without an oscilloscope
- Integrated display of all relevant parameters (ƒ, Δφ, Δt, Δx)
Experimental Tasks
- Determine the velocity of light in air
- Measure the velocity of light in water and synthetic resin
- Calculate the refractive indices of different media
Learning Objectives
- Refractive index
- Wavelength
- Frequency
- Phase
- Modulation
- Electric field constant
- Magnetic field constant