Probably the most flexible type is the High Quality Deep Seeking Gold Detector, where the material is gravity fed through the inlet of the detector. Metallic particles are detected and immediately rejected by an air-operated rejection system. Adjustable sensitivity along with short rejection time ensures minimal loss of good product.
Free-fall units can be found in single-coil or balanced-coil designs along with either analog or digital electronics. Free-fall units can vary in aperture size from 25 to 300 mm (1 to 12 in.). Some types use a quick-clean rejection system that facilitates cleaning from the reject system.
Metal detectors for pneumatically conveyed materials take the form of a collar surrounding the conveying line. Again, these detectors can be purchased in single- or balanced-coil design with analog or digital electronics. Positive speed control is accessible on some models to precisely time the reject-gate closing and opening in order to minimize the losing of good material.
Metal detectors for mechanical conveyors take the shape of a tunnel all around the conveyor. This system can be coupled with many different customized rejection options for loose or packaged materials. Metal detectors for films and thin sheets use coils which are extremely sensitive at close range. They fit directly under the web and require hardly any space.
Separators for plug-flow applications are similar in operating principle to some free-fall detector. However, the plug-flow design detects metals in slow-moving or standing columns. An average application is mounting the device underneath the hopper and simply above the throat in the processing machine. At Bunting Magnetics, we call this the “Last Chance Separator” or LCS. The LCS is made to support batch feeders, blenders, as well as other processing equipment weighing approximately 250 lb. Tools are bolted right to the infeed in the LCS.
Give a magnet – Place a drawer, grate, hump, liquid-trap, or any other magnetic separation unit upstream to do business with your detector. Magnetic separators will pull all ferrous metal out before it reaches the detector. This can lighten the burden of contaminants that go through the detector, increasing its efficiency while minimizing the likelihood of rejecting good material. Additionally, usage of an upstream magnet allows you to adjust the detector’s sensitivity to some more impressive range to capture only non-ferrous contaminants.
The detection system consists of a pulse/echo transducer, a water jet nozzle and an x-y table. Foreign bodies such as glass, X Ray Scanner were detected by scanning the flat bottom of the beverage container. According to acoustic modeling, a way for detection and identification of foreign bodies is developed and tested. A signal processing algorithm for time-frequency analysis is used to discriminate between beverage and contaminants from ultrasound echoes. Effective detection ability for materials such as glass, metals, and plastic, with sizes from 10 to 2.5 mm2 is demonstrated. Experiments were also performed using ultrasonic beam penetrating glass material to detect steel balls of various sizes. This is even closer to the situation of real foreign body with regards to orthogonality and cross-section to ultrasound beam.
Detection of metallic and non-metallic objects – Sometimes you need to simply understand what is hidden behind a surface. For instance behind a wall or cover, or what exactly is inside in a storage container or shipping container. Capacitive proximity sensors are ideal for level and feed monitoring. From solid material, such as paper or wood, to granules or liquids, they reliably detect the status of the product through the production process and final inspection. Can there be something behind which cover? Is the filled package really full?
How much paint continues to be left within the tank? For capacitive proximity sensors, they are easy questions to answer. Capacitive proximity sensors from SICK are never far from the action. Sensing ranges between 1 and 25 mm allow them to be used in virtually all installation situations, making them extremely adaptable for a variety of applications. These sensors pbgavn also remarkably resistant to faults. Impurities, contamination, dust, and airborne spray particles have little influence on them, nor does electromagnetic interference. Not surprising they are installed in a wide range of industries, including food, automotive, or even in storage and conveyor systems.
Reliable, powerful, rugged. Inductive proximity sensors from SICK – An incredible number of inductive proximity sensors are being used in virtually all industries. They Deep Target Waterproof Metal Detector without contact, and are characterized by a long service life and extreme ruggedness. Using the latest ASIC technology, SICK’s sensors provide the epitome of precision and reliability. SICK can provide the right solution to meet your requirements each time – from cylindrical or rectangular standard sensors with single, double or triple operating distance, to special sensors for explosive zones and harsh environments. Our sensors are definitely the intelligent, reliable way to implementing industry-specific and customized methods to any task involving automation.
Junhong Electronic&Technology (Dongguan) Co., Ltd is a professional manufacturer since 2005, specialized in R&D of security detection technology. We have various of products range: Walk through metal detectors, hand held metal detectors, X-ray luggage scanners, X-Ray Body Scanner, Underground Metal Detector, Industrial Metal Detector, Checkweigher, Infrared Body Temperature Detection System; Explosives Detector, Under Vehicle Surveillance Systems; etc.
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