❱ ❱ With a range of 50-1500mm, the sensors can be used in complex materials handling environments easily without complex set-up

surface prevents water droplets, oil, dirt and dust from sticking to the sensor lens cover. In addition to this, it keeps the lens from fogging so a clear line of sight is maintained. This reduces false detection as well as the frequency of maintenance and cleaning. Detection Flexibility The ability of the sensor to detect objects of a variety of colours and made from a range of materials enables fast evaluation and adjustment to be performed. With conventional photoelectric sensors, prior

requirements. In addition, their small size enables installation in confined spaces. Depending on the material used, the sensor

construction technology uses a variety of innovative techniques to ensure it can cope with the harsh conditions of different manufacturing and distribution environments. Patented laser welding technologies for different materials and metals ensure sealing to avoid sensor failures. The E3AS Sensor case is made of stainless steel

(SUS316L). Omron’s laser welding technology enhances the sealing and adhesion between the parts of the case, reducing failures in water (IP69K) and oil (IP67G) environments. The “weld” can either join different materials, such as the lens and indicator covers, or join metal to metal. For joining different materials, the technology involves the use of laser melted resins to seal joining apertures. For metal to metal joining, laser beam welding is used as a more secure alternative to adhesives. Anti-fouling

Similar to the techniques used in the security camera industry, Omron has deployed special anti-fouling coatings for the sensing surface. Despite its use in other industries, this is the first time this patented coating has been used in sensor manufacturing to prevent contamination. The antifouling coating on the E3AS Series sensing

DAQ, Sensors & Instrumentation Vol 3 No. 1 /// 3

❱ ❱ TOF detectors can reliably detect different objects regardless of shape, colour, material or reflectivity

❱ ❱ The E3AS sensor can also be used in industrial automation equipment such as warehouse automated guided vehicles

evaluation or positioning is required for each sensing object. The E3AS Series detects objects which vary in colour and material at a set distance, enabling less evaluation and adjustment time. This flexibility of detection comes directly from the TOF method used by the E3AS. Alternative sensors that use triangulation methods will receive different signal strengths or positions depending on colour, material or reflectivity of the object being detected. With TOF technology, objects made of such

materials as black rubber and stainless steel can be detected equally reliably.

SENSING FOR MANUFACTURING The new Omron sensor has been designed from the start to meet the needs of modern manufacturing companies. It has the flexibility to detect a wide range of objects and at different distances without complex setting up. In addition, it can be used with palletised objects or as a sensor on manufacturing robots or warehouse automated guided vehicles.

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