3D Vision Sensor Evaluates Shape, Size, and Volume
ifm has partnered with PMD technologies in providing a reliable 3D sensor that evaluates an object’s shape, size and volume. In many industrial automation applications, numerous sensors are required to obtain the necessary object information for proper material handling. ifm’s 3D Image Sensor is the first industrial sensor that can evaluate an object in three dimensions in real-time.
For applications such as robotic palletizing, the 3D Image Sensor can identify an incomplete layer or box overhang, which if undetected, can result in damage to the product. In conveying applications, the 3D Image sensor can determine the gross dimension and volume of an object to ensure proper traffic flow.
The compact sensor uses time-of-flight distance measurement to identify an object in its field of view. An integrated 64 x 48 pixel array – in which each pixel represents a time of flight measurement – defines the field of view for the sensor. The result can be represented as a grey-scale or a color coded image.
- Courier and parcel logistics
- Automated storage retrieval systems
- Warehousing and distribution
- Automated guided vehicles
- Bulk material level
- Grains and raw materials in feeders
- Food products on vibratory conveyors
In material handling and logistics applications, standard 2D vision cameras are used because of their large field of view. However, 2D vision cameras cannot supply the distance information needed for many applications. To compensate for this, standard sensors, such as photoelectrics, are used for distance information, but only provide a single point of data.
ifm’s new 3D Image Sensor offers both: a large field of view and distance information in a robust, compact housing.
The 3D image sensor is designed to evaluate size, shape and volume in industrial automation applications. The compact, easy-to-use sensor uses time-of-flight distance measurement and photonic mixing device technology to identify an object in its field of view. The integrated 64 x 48 smart pixel array projects 3072 points of reference onto an object, capturing the entire object in three dimensions, in real time.
The solid-state, robust metal housing measures only 42 x 62 x 42 mm and is designed to withstand harsh environments and to perform in fast-moving applications. Application parameters are quickly established, and the sensor can provide either digital or analog outputs.
For full specs and online shopping, please visit ifm’s 3D vision sensor page.
Challenge: Boxes out of place on pallet.
ifm Solution: Pallet image in 3D
Challenge: multiple scanners to determine box height, width, and depth
ifm Solution: 3D sensor detects box size AND volume.
Challenge: Many single-point position sensors needed to detect bulk material level
ifm Solution: 3D Image Sensor projects 3072 data points to detect the entire area