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Proximity Switches


We have several types of sensors for sensing the proximity of an object to a target. Below is a table to show you the various types to give you an idea how diverse the sensors can be to meet all types of applications.


Download our guide to sensors here



Sensor Type

Advantage’s

Disadvantages

Common Applications

 

Limit Switch.

High Current Capability.

Low Cost.

Familiar "Low- Tech” Sensing.

Requires Physical Contact with Target.

Very Slow Response.

Contact Bounce.

Needs frequent adjustment.

Interlocking.

Basic End-of-Travel Sensing.

Photoelectric.

Senses all Kinds of Materials.

Long life.

Long range.

Very fast response time.

Lens Subject to Contamination.

Affected by Colour and Reflectivity of Target.

Packaging.

Material Handling Part.

Inductive.

Resistant too Harsh Environments.

Very Predictable.

ONLY sense metal objects.

Long Life.

Simple to install.

Distance Limitations,

Needs to be relatively close to the target.

ONLY sense metal objects.

Industrial Manufacturing.

Machine Tools.

Capacitive.

Detects Through Some Containers.

Can Detect Non-Metallic Targets.

Range varies with material be detected.

Very Sensitive to Extreme Environmental Changes.

Level Sensing.

Ultrasonic.

Detects all Materials.

Resolution

Repeatability.

Anti-Collision

Doors.

Car parking aid

Level Control.