Surveyor’s Wheel Uses Reed Switches for Distance Measurement

A Surveyor’s Wheel, also known as a Trundle Wheel, serves as a fundamental tool for measuring distances efficiently. Designed with precision in mind, each revolution of the wheel corresponds to a specific distance, allowing surveyors to accurately gauge lengths during their fieldwork. Manual Surveyor’s Wheels often feature fractional markings, enabling users to translate partial revolutions into precise length measurements for comprehensive surveys.

While the Surveyor’s Wheel may not offer pinpoint accuracy, particularly in sandy terrain where wheel slippage can occur, its utility shines when surveying irregular boundaries where traditional measuring tools like tape measures prove impractical.

In the realm of land surveying, the need for seamless unit conversions between different land measurement units such as grounds, acres, hectares, and cents is paramount. To address this requirement, modern Surveyor’s Wheels are equipped with advanced features to facilitate efficient conversions.

By incorporating a reed switch within the controller unit and affixing a ring magnet onto the shaft of the Surveyor’s Wheel, the device generates pulses that are decoded by the controller. This mechanism enables the seamless conversion of measured distances into various units, including meters, feet, or any other desired unit, at the push of a button.

This integration of reed switch technology enhances the functionality and versatility of Surveyor’s Wheels, empowering surveyors to perform comprehensive land surveys with greater efficiency and accuracy. With the ability to swiftly switch between different measurement units, surveyors can streamline their workflow and ensure precise results across diverse surveying tasks.

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

When an application requires the volume of a fluid, or a distance, or the RPM of a machine tool measured, such an application can be Continue reading -> Jun 18, 2025

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.

Miniature Flat Pack Reed Sensor MS-324

Drawing of MS-324 Magnet Sensor starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Jul 22, 2025

Standard Cylindrical Magnet Sensor, MS-216

MS-216 Magnet Sensor Drawing starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Jun 18, 2025

Large Cylindrical Magnet Sensor, MS-216-L

Drawing of MS-216-L Magnet Sensor starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Ruthenium Continue reading -> Jun 18, 2025

M5 Threaded Sensor Cylindrical Sensor, MS-225

MS-225 Threaded Magnet Sensor drawing starFeatures10W Contact Rating. Normally Open contact. Three sensitivity bands. Sputtered Continue reading -> Jul 22, 2025