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Magnetic Sensors: Speed & Proximity Sensors

Magnetic Speed Sensors
Magnetic Proximity Sensors

Introduction

When an application demands some level of feedback, it is rare that a magnetic switch, sensor or encoder cannot service that requirement. In most cases, the use of magnetic technology is preferable. Phoenix America Inc. sets itself apart from other suppliers of magnetic sensor by having the technology to manufacture the magnetic target as well as the magnetic sensor.

SPEED SENSORS

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Phoenix America Inc. speed sensors can be used to determine rotational speeds from zero to 100 kHz with very high resolution. These products are very well suited to almost all industrial environments, eliminating the need for special precautions for dirt, grime, grease, water splashes, cutting fluid splashes, etc. Our speed sensors offer a low cost, industrially sound, high resolution alternative for measuring rotational speed.

PROXIMITY SENSORS

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Phoenix America Inc. proximity sensors are used to determine the location or passage of a target with very rapid response times and very highly repeatable actuation points. They can easily respond to targets passing by with speeds from zero to 100 kHz. These products are very well suited to almost all industrial environments, obviating the need for special precautions for dirt, grime, grease, water splashes, cutting fluid splashes, etc. Our proximity sensors offer a low cost, industrially sound, fast response, highly repeatable alternative for measuring proximity and position. The general grouping of proximity sensors is the method of actuation:

Other specifications to be considered would be

Normally open or normally closed
Operating gap
Housing size or shape

Magnet actuated sensors generally afford the largest operating air gaps available. Depending on the target and sensor chosen, air gaps exceeding 1/2" are readily attainable in relatively small housings.

Magnet actuated sensors are not susceptible to false triggering in the presence of "non-target" metals, as is very common for inductive sensors.

Ferrous target sensors, sometimes referred to as Position Sensors, offer the customer the flexibility of utilizing an existing feature on a piece of equipment as a target, such as a sprocket, gear, bolt head, metal bracket arm, etc. Our sensors have low sensitivity to mounting materials, therefore we do not need to offer special "shielded" versions. This allows the user the luxury of mounting the sensor in its optimum position. The ferrous target sensor can readily detect ferrous materials inside non-ferrous materials. This feature makes it a very valuable tool in looking for missing objects in assemblies or in looking for ferrous objects that should not be in an assembly or product.

Rotary Position Sensors

Phoenix America manufactures custom tooled rotary position sensors. If you have an application for a rotary position sensor, contact the factory for more information.

Linear Position Sensors

The technology of the Phoenix America encoder product line can be configured to support a linear position sensing application. Contact the factory for more information.