9. Other techniques
Other techniques, less widespread or still at the development stage, can be proposed to differentiate foreign bodies from the product on the basis of mechanical, physical or electromagnetic properties.
9.1 Ultrasonic detection
The principle consists in generating sonar echoes on the product surface. The particulate product is distributed by a vibrating distributor on the surface of a rigid (metallic) contact zone, which is set in ultrasonic vibration by a sonicator. A set of microphonic detectors measures the echo returned by the contact surface. If a product comes into physical contact with the vibrating surface, the echo is modified.
Depending on the hardness or elasticity of the object's surface, ultrasound is reflected or absorbed...
The Ultimate Scientific and Technical Reference
This article is included in
Food industry
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Other techniques
Choice of technology
European suppliers
(non-exhaustive list)
Detection by X-ray imaging
Anritsu, représenté par Latinpack http://www.latinpack.com/
France Scan http://www.francescan.net/
Dylog, représenté par HTDS (High-Tech Detection...
Organization
Centre technique de la conservation des produits agricoles (CTCPA) http://www.ctcpa.org
The Ultimate Scientific and Technical Reference
