Proximity detection is critical to automation and process control, Hexamite Ltd. offers the following short range proximity sensors in addition to its medium and long range ultrasonic distance measurement systems. These proximity sensors are classified based on their sensing principles,  inductive, capacitive, optical and magnetic sensors, and have proven track record in various process intense automation and material handling fields. Found in refineries, foundries, pharmaceutical and textile processing plants, these have served gainfully for decades. Hexamite offers four types of proximity sensors, these are:

1. Inductive proximity sensors: trip on the detection of metallic objects close to the sensor face. 

2. Magnetic proximity sensors: trip on the detection of ferrous objects such as Iron, Nickel and etc. close to the sensor face. 

3. Capacitive proximity sensors: trip on the detection of any object close to the sensing face

4. Optical proximity sensors: useful for precise distance measurements and proximity switching at longer distances than the sensors above.

Applicable Standards: IS-13947, UL-508, EN61000-3-3 & EN61000-3-4, CSA 22.2NO.14-95

Most sensors can be used for counting small objects falling trough a conduit like illustrated on the right. For non-metallic and non-ferrous objects either optical or capacitive sensors can be used.

The illustration on the right shows a mechanical gear being monitored. Assuming the gear wheel is composed of ferrous material, all sensor types can be used for monitoring the rotational characteristics.

The image shows an  optical sensor placed against against a reflective object, and when the bad guy brakes the beam, the computer sounds an alarm.

The setup on the right shows how proximity sensors can be used to monitor the status of textile threads, wires for coil windings can be monitored similarly.

The illustration on the right depicts a two level liquid switching. Optical and capacitive sensors can be used for this application. 

Again the optical and capacitive sensors can be applied for the level monitoring of solids. Application suggestions are shown in the illustration on the right.