Velometers like the one shown in Figure 1 -33 are often called air volume balancers.
Somewhat tolerant to turbulence compared to other forms of anemometer. They offer good averaging (damping) and can be used in sweep mode to determine average flow across a duct that may have a varying velocity profile. Some can also drive an optional micro-printer to record the readings. Vane anemometers rely on air flowing through them to spin the vane proportionally to the velocity of the flow. Certain electronic velometers use a microprocessor that can automatically average up to 250 individual readings taken across an area to provide the average air velocity and temperature. Depending on the sensing probe or attachment used, velometers are available to measure air velocities in several ranges within the overall range o f 0 to 10,000 FPM.
Sensing probes used with the velometers have a sensitively-balanced vane or a small resistance heater element that when placed in the airstream produces a measurement of airflow for application to the velometer meter scale. Several analog and electronic types of velometers are in common use. For example, a thermal anemometer (hot wire) is hypersensitive to low airflow, and perfect for low velocity, non. Some can also provide direct readings in CFM. The hollow cup shell is fixed on a three-pointed star-shaped bracket that is 120° to each other or a cross-shaped bracket that is 90° to each other. The induction part is composed of three or four conical or hemispherical empty cups. Velometers provide instantaneous, direct readings o f air velocity in FPM without the need for timing or calculations. The wind cup wind speed sensor is a very common anemometer, which was first invented by British Robinson. Like the anemometers described previously, velometers are used when evaluating the operation and/or balancing the airflow in air distribution systems. Send us feedback.Velometers (Figure 1-32) are used to measure the velocity of airflow. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anemometer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Los Angeles Times, 19 July 2019 This technology isn’t perfect-software still hiccups, anemometers still break-but El Faro’s black box has commemorated the crew in a way nothing else could.Ĭraig Fehrman, Outside Online, El Faro didn’t even have a working anemometer, a wind-speed gauge.ĭouglas Preston, New York Times, In addition to filming, Maravelias was also recording wind speeds with two anemometers.Īngela Fritz, Washington Post, 6 Mar. 2019 Each platform is fitted with an anemometer, which measures wind speed, and an alarm sounds if the speeds reach 30 mph. 2019 The Police Department also has seven wind-monitoring devices, called anemometers, to measure gusts along the route.ī, 27 Nov. Sarah Maslin Nir, New York Times, 28 Nov. 2021 Officers were checking seven wind-detection machines, known as anemometers, as the balloons proceeded down the route from West 77th Street and Central Park West to the grandstand at Herald Square.
Velometer vs anemometer plus#
2021 More advanced systems can have all that, plus all or a selection of these: a rain gauge, an anemometer for measuring wind speed and direction, a barometer, and an actinometer for checking UV index and solar radiation.Īdrienne Donica, Popular Mechanics, 4 Jan. An overview of the design of tachometric anemometers and their applications in the mining industry, which is interesting from the point of view of development. the windspeed anemometer is an ideal tool for windsurfing, sailing and kite flying. What is final data format: spreadsheet, plots, other Viscometer. Recent Examples on the Web On top of that, the instrument the man was using, an anemometer, broke. ApplicationThis wind speed tester is very small and light. 0 The evolution of our current velocity sensor and accelerometer line began with sensors that offered a self-generating moving-coil design used by geologists to measure movement in the earths crust.
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