Magnet Sensors in Anemometers

An Anemometer is an instrument used to measure wind speed. Spinning cup anemometers are measure wind speeds and are part of every weather station and airport. Originally, the cups of the anemometer that turned when during winds, were attached to a shaft that was mechanically translated to wind speed gauge or a graph recording. This had its own problems such as friction, which would come into play over a period, and this loss had to be compensated.

This is where Magnet Sensors help. The basic, proven construction of an Anemometer, has not changed over the years, but is now improved to give out more information when used with magnets and sensors. By adding a magnet to each of the cups and a reed sensor under the stem, the same information can be generated and recorded, only more accurately. As the wind blows, the Sensor counts the number of pulses which can then be translated to wind speed, by a processor. The output generated by the Magnet Sensor can be integrated into intelligent hubs that can record wind speed over a period or send out push notifications to mobile devices when the wind speed exceeds a set limit.

Application Classification

Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.

Pulse Counting Type

Pulse counting type application When an application requires the volume of a fluid, or a distance, or the RPM of a machine tool Continue reading -> Nov 7, 2020

Recommended Products

The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.

SM-1322 Sub Miniature Reed Switch

This Form A type SM-1322 Sub Miniature Reed Switch is built with a 2.25 mm diameter glass with a higher wall thickness for better glass to Continue reading -> Nov 8, 2022

MS-214 Miniature Cylindrical Sensor

Drawing of MS-214 Magnet Sensor starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Oct 30, 2020

MS-225, M5 Threaded Cylindrical Sensor

MS-225 Threaded Magnet Sensor drawing starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Continue reading -> Nov 20, 2020