Sensor To Detect Plastic Only

In contrast to inductive sensors which only detect metallic objects capacitive sensors can also detect non metallic materials.

Sensor to detect plastic only.

Inductive proximity sensors can only detect metal targets. Unlike photoelectric sensors this allows a inductive proximity sensor to detect a metal object through opaque plastic. Still you could go for indirect methods like reflectivity infrared signature by black body radiation. Google for omron or ifm proximity sensors learn and find something you want and purchase.

Similar to the question pesticides detection sensor there isn t a specific sensor to look for glasses or plastic polymers. If you want to go more complex than 1. Or you want to distinguish diffeent types of plastic say pvc vs. They do not detect non metal targets such as plastic wood paper and ceramic.

Typical applications are in the wood paper glass plastic food chemical and semiconductor browse capacitive linear position sensors datasheets for ifm electronic gmbh. You have to do some logic that both type of sensors are on then it is metal only capacitance sensor is on it is plastic or glass. Omron also have sensor to detect aluminum non iron then it would be three sensors and more logic to decide. While infra red sensors have been in use for some time to enable fast sorting of two or three plastic streams for recycling the latest developments allow the rapid recognition and reliable separation of six different plastics at the same time using near infra red laser diodes and detectors this enables the practicable and cost effective recycling of mixed plastic waste streams.

The question is vague but here is my train of thoughts. Balluff s patented hybrid capacitive technology sensor series detects water based conductive media through thick glass and plastic walls while compensating for moisture foam and material build up. Prices are indicative only and may vary by country. Plastic granulate sugar oil aqueous media directly or through a container wall.

Capacitive sensors for level detection use a spherical field to detect the product bulk material or liquid e g. Even though you cou. Inductive sensors detect metal objects contactless and wear free.