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Doppler Velocimeters

Compact Photonic Doppler Velocimeter
IDIL Fibres Optiques
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Compact Photonic Doppler Velocimeter
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IDIL Fibres Optiques developed the first industrial Photonic Doppler Velocimeter for shocks and detonic applications. This technology allows to measure unique or multiple speeds, in the range of 0 to 20 km/s with an excellent temporal resolution. A dedicated software, based on a Fourier Transform algorithm, allows a rapid ...

Specifications
Displacement Interferometer: High dynamics (>27 dB)
Eye Safety: (1.55 μm) all fibered design μm
Minimum Reflectance Required: -60 dB dB
Speed Measurement: 0 to 20 km/s km/s
High Sensitivity: >50 dB dB
...
Data Sheet

Frequently Asked Questions

A Doppler velocimeter is a type of laser-based instrument that is used to measure the velocity of a moving object. It works by measuring the Doppler shift in the frequency of light that is scattered by the moving object.

Doppler velocimeters are used in a variety of scientific and industrial applications, such as in fluid dynamics, aerodynamics, and combustion research. They are also used in medical applications, such as measuring blood flow in the body, and in remote sensing, such as measuring wind velocity in the atmosphere.

Doppler velocimeters working principle is based on a well-known optical Doppler effect, which is a phenomenon of changing frequency of light waves as the source and observer move towards (or away from) each other. It works by emitting a laser beam that is scattered by the moving object. The scattered light is then collected and analyzed to determine the frequency shift caused by the Doppler effect. By measuring this frequency shift, the velocity of the moving object can be calculated.

There are several different types of Doppler velocimeters, including laser Doppler velocimeters (LDVs), backscatter Doppler lidars (DLs), and pulsed Doppler lidars (PDLs). LDVs use a laser beam that is focused on the moving object, while DLs and PDLs use laser pulses that are scattered by the moving object.

When selecting a Doppler velocimeter, some key specifications to consider include the velocity range, the resolution, the accuracy, the signal-to-noise ratio, and the laser wavelength. Other factors to consider include the type of input signal, the interface options, and the overall cost.

One common challenge is achieving a high signal-to-noise ratio, particularly in low-light conditions. Another challenge is dealing with the effects of turbulence or other sources of noise in the signal. Additionally, the range and accuracy of Doppler velocimeters can be limited by factors such as laser power and beam divergence.

There are 1 different Doppler Velocimeters from suppliers and manufacturers listed in this category. In just a few clicks you can compare different Doppler Velocimeters with each other and get an accurate quote based on your needs and specifications. Please note that the prices of Doppler Velocimeters vary significantly for different products based on various factors including technical parameters, features, brand name, etc. Please contact suppliers directly to inquire about the details and accurate pricing information for any product model. Simply navigate to the product page of interest and use the orange button to directly reach out to the respective supplier with one click.

Did You know?

Doppler velocimeters are instruments that use laser-based technology to measure the velocity of moving objects. They are used in a wide range of scientific and industrial applications, such as fluid dynamics, aerodynamics, and combustion research. They are also used in medical applications to measure blood flow, and in remote sensing to measure wind velocity in the atmosphere. Doppler velocimeters work by emitting a laser beam that is scattered by the moving object. The scattered light is then collected and analyzed to determine the frequency shift caused by the Doppler effect. This shift is proportional to the velocity of the moving object, allowing the velocity to be calculated. There are several different types of Doppler velocimeters, including laser Doppler velocimeters (LDVs), backscatter Doppler lidars (DLs), and pulsed Doppler lidars (PDLs). LDVs use a laser beam that is focused on the moving object, while DLs and PDLs use laser pulses that are scattered by the moving object. When selecting a Doppler velocimeter, some key specifications to consider include the velocity range, the resolution, the accuracy, the signal-to-noise ratio, and the laser wavelength. Other factors to consider include the type of input signal, the interface options, and the overall cost. One common challenge with Doppler velocimetry is achieving a high signal-to-noise ratio, particularly in low-light conditions. Another challenge is dealing with the effects of turbulence or other sources of noise in the signal. Additionally, the range and accuracy of Doppler velocimeters can be limited by factors such as laser power and beam divergence. In Summary, Doppler velocimeters are a powerful tool for measuring velocity in a variety of applications. They provide a non-invasive and highly accurate method for measuring velocity, allowing for precise measurements of fluid and air flows, as well as blood flow in medical applications.
External links:
1 - Laser Doppler Flowmetry: Measuring Blood Flow with Light
2 - A Doppler LiDAR System for Advanced Weather Monitoring
3 - All Laser Scanning and Ranging products