Velocimeter

Item Name Code (INC) 61603

Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments: Federal Supply Class: FSC 6680; NATO Supply Classification Class: NSC 6680
Instruments and Laboratory Equipment: Federal Supply Group: FSG 66; NATO Supply Classification Group: NSG 66
Item Hits: 25

A specially designed item which provides continuous operational switching as a result of velocity when inserted in an electrical circuit of a body in motion. A method is incorporated for manually pre-setting a velocity which determines the range within which a switching function is performed. Additional switching is performed when the velocity is not within the preset range. It may include an accelerometer, digit assembly, integrating system, and associated switching circuits. For items designed to sense the rate of change of velocity (acceleration), see ACCELEROMETER (as modified).

Additional Information for Velocimeter

Velocimeters are instruments used to measure the velocity or speed of a fluid, such as a liquid or gas. They fall under the supply class of Liquid And Gas Flow, Liquid Level, And Mechanical Motion Measuring Instruments in the supply group of Instruments And Laboratory Equipment.

Velocimeters are commonly used in various industries and applications, including:

1. Fluid dynamics research: Velocimeters are used to study the flow patterns and velocities of fluids in research and development settings. This helps in understanding the behavior of fluids and optimizing processes.

2. Environmental monitoring: Velocimeters are used to measure the flow rates and velocities of water bodies, such as rivers and streams. This information is crucial for assessing water quality, flood forecasting, and managing water resources.

3. Industrial applications: Velocimeters are used in industries such as oil and gas, chemical processing, and wastewater treatment to monitor and control fluid flow rates. This ensures efficient operation and prevents any potential issues.

4. Aerodynamics testing: Velocimeters are used in wind tunnels and aerospace research to measure the velocity of air around objects, such as aircraft wings or car bodies. This helps in designing more aerodynamic and efficient vehicles.

There are different types of velocimeters available, including:

1. Pitot tube: This type of velocimeter uses a tube inserted into the fluid flow to measure the pressure difference between the fluid and the surrounding atmosphere. This pressure difference is then used to calculate the fluid velocity.

2. Laser Doppler velocimeter (LDV): LDV uses laser light to measure the velocity of particles suspended in a fluid. By analyzing the frequency shift of the scattered light, the velocity of the fluid can be determined.

3. Ultrasonic velocimeter: This type of velocimeter uses ultrasonic waves to measure the velocity of a fluid. It works by measuring the time it takes for the ultrasonic waves to travel between two points in the fluid.

4. Hot-wire anemometer: This velocimeter uses a heated wire or filament to measure the convective heat transfer from the wire to the fluid. The heat transfer is directly related to the fluid velocity.

These are just a few examples of velocimeters and their applications. The specific type of velocimeter used depends on the requirements of the application and the desired level of accuracy.