Cognex 821-0116-3R Reference Download Page 38 | Manualshive

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background image

The following figure illustrates the laser stripe as seen from the position of the camera and the intensity image the
camera captures:

The sensor locates the brightest pixels in the intensity image in order to extract peak information. Your Cognex software

combines successive intensity images to generate a synthetic image containing height profile information.

38

Range Images

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Summary of Contents for 821-0116-3R

Page 1: ...DS1000 Series Displacement Sensors Reference 2019October21 Revision 9 5 0 SR2 1...

Page 2: ...echanical for any purpose nor transferred to any other media or language without the written permission of Cognex Corporation 2019 October 21 11 49 AM Revision 9 5 0 SR2 1 Copyright 2016 Cognex Corpor...

Page 3: ...ormation WARNING This symbol indicates a hazard that could cause death serious personal injury or electrical shock CAUTION This symbol indicates a hazard that could result in property damage Note This...

Page 4: ...enerated by cameras that acquire two dimensional images Each sensor projects a triangular laser plane onto an object as it passes within view The illumination of the laser plane generates a laser stri...

Page 5: ...a synthetic 2D image containing height profile information in real world coordinates Your Cognex software supports a variety of 3D vision tools for performing tasks such as l Generating information a...

Page 6: ...by the party responsible for regulatory compliance could void the user s authority to operate the equipment l Ensure that the cable bend radius begins at least six inches from the connector Cable shie...

Page 7: ...es representative Cables Note Cables are sold separately Power and I O For more information refer to I O Cable on page 26 for the pin out of the unterminated flying leads Length Description Part Numbe...

Page 8: ...Number 0 6m M12 to RJ 45 straight CCB 84901 1001 00 2m CCB 84901 1002 02 5m CCB 84901 1003 05 10m CCB 84901 1004 10 15m CCB 84901 1005 15 30m CCB 84901 1006 30 Length Description Part Number 2m M12 to...

Page 9: ...Number Mounting bracket and M6 screws DS BKT 000 Description Part Number High accuracy mounting plate and M6 screws DS MPHA 00 Steel Enclosure Description Part Number IP69K stainless steel enclosure D...

Page 10: ...wing labels on every 3D displacement sensor DS1000 Series If you need more information on the collection reuse and recycling systems please contact your local or regional waste administration You may...

Page 11: ...Label Locations 11 DS1000 Series Models...

Page 12: ...enance necessary to keep the product in compliance l Under no circumstances should you operate the sensor if it is defective or the seal damaged Cognex Corporation cannot be held responsible for any h...

Page 13: ...Dimensions 13 DS1000 Series Models...

Page 14: ...verted A B Single Ended A B 5 24V 50 kHz max A B VDC A B Working Distance 87 to 163 mm Ethernet l Gigabit Ethernet interface l Integrated link and traffic LEDs l Standard M12 8 female connector Shock...

Page 15: ...Y Resolution This value depends on Encoder Resolution the Distance per Cycle and the Steps per Line settings Z Resolution Top 0 005 mm Bottom 0 014 mm 15 DS1050 Sensor Specifications...

Page 16: ...mm to 355 mm Ethernet l Gigabit Ethernet interface l Integrated link and traffic LEDs l Standard M12 8 female connector Shock 50 G s Half Sine with a pulse of 11 milliseconds duration Test conducted w...

Page 17: ...mm to 905 mm Ethernet l Gigabit Ethernet interface l Integrated link and traffic LEDs l Standard M12 8 female connector Shock 50 G s Half Sine with a pulse of 11 milliseconds duration Test conducted w...

Page 18: ...by Cognex and re use it whenever you ship your sensor l Follow the instructions in Sensor Maintenance on page 20 for details on cleaning the sensor l Refer to the topic Safety and Regulatory on page 4...

Page 19: ...oups of three when a 1000 Mbps connection is established with the host 3 Sensor Status Blinks approximately every 5 seconds when the sensor is running normally 4 Laser Enabled Lights while the laser i...

Page 20: ...ecommendations for cleaning the laser and camera windows l Unplug the unit so the laser cannot be enabled l Use lint free tissue or an optical grade cotton swab Q tip l Use reagent grade isopropyl alc...

Page 21: ...that pass within its view Feature Description 1 A three dimensional coordinate system where the origin is at the center of the laser plane on the surface of movement 2 For best results movement shoul...

Page 22: ...t number DS MPHA 00 accessory offers the following advantages when anchoring your sensor to your production environment l The laser plane will always be parallel to the mounting plate l Removing and r...

Page 23: ...e Description 1 Hole for Location Pin 2 Through hole for M6 screw 3 Hole for Master Pin To mount the sensor to the plate 1 Align the Master Pin the Location Pin and the through hole for the M6 screw w...

Page 24: ...make contact with the mounting plate 3 Insert and tighten the M6 screw CAUTION Observe torque limit 2 2 Nm 19 Lb In 4 Mount the plate perpendicular to the direction of moment of the objects to be ins...

Page 25: ...hrough Body Mounting To mount your sensor using the through body mounting option insert rods or appropriate hardware through the sensor unit and use a clamping mechanism to prevent the sensor from shi...

Page 26: ...voltage creates a risk of fire or shock and can damage the sensor Refer to the following wiring diagram for connecting the sensor to power Power l Connect the cable or connector shield to earth groun...

Page 27: ...the sensor through the I O cable Pin Number Signal Name 1 24VDC power 2 Laser Not Used 3 Laser Not Used 4 Ctrl Not Used 5 Ctrl Not Used 6 Not Used 7 Not Used 8 24VDC 9 Encoder A 10 Encoder A 11 Trigg...

Page 28: ...thernet Connector The Ethernet connection uses an M12 8 female connector Ethernet Signal RJ 45 Pin Number M12 8 Pin Number DA 1 6 DA 2 4 DB 3 5 DB 6 8 DC 4 7 DC 5 1 DD 7 2 DD 8 3 28 Ethernet Connector...

Page 29: ...mation based on the speed of the moving object rather than predetermined exposure settings Many vision applications use a rotary encoder attached to the conveyor system Note l The frequency of encoder...

Page 30: ...input of the I O cable with a single channel encoder Be aware that single channel encoders cannot determine which direction the conveyer system is moving and they are more susceptible to electrical n...

Page 31: ...s Transition approx 10V Min To configure the acquisition trigger as a sourcing input connect the Trig terminal to the high voltage reference 24 VDC and the Trig terminal to the output of the photo ele...

Page 32: ...one step For many vision applications this default value allows too much of the object to pass by the sensor potentially missing important features Your Cognex software allows you to increase the numb...

Page 33: ...a value that is too high the sensor does not acquire enough image information and the resulting image will appear flattened Cognex recommends you experiment with this value for the best results 33 Ima...

Page 34: ...placement Sensor Acquisition Wizard to assist you in configuring the necessary acquisition parameters for your 3D displacement sensor The following figure shows one part of the wizard See your Cognex...

Page 35: ...Working Section The working section is the subset of the overall laser plane visible to the camera field of view Area Description 1 Camera field of view 2 Laser 3 Working Section 35 Working Section...

Page 36: ...ifferent field of view and working section Specification Model Numbers DS1050 DS1101 DS1300 Clearance Distance mm 87 136 181 Near Field of View mm 43 64 90 Far Field of View mm 79 162 410 Measurement...

Page 37: ...formation in real world coordinates A range image can be viewed on a typical 2D display or the Cognex 3D Viewer application Range image on 2D Display Range Image on 3D Viewer Your Cognex software gene...

Page 38: ...a and the intensity image the camera captures The sensor locates the brightest pixels in the intensity image in order to extract peak information Your Cognex software combines successive intensity ima...

Page 39: ...any data outside the defined zone which allows the application to generate a synthetic 3D image faster and gives you the ability to increase the line speed of your vision solution While many vision ap...

Page 40: ...image and are displayed in red within a standard 2D display For example the following figure shows an object being scanned by a sensor The following figure shows the range image on 2D display with the...

Page 41: ...on l With values specific to your vision solution Use a color map to change the 2D display of range images For example the following figure shows a typical range image and the same image using a color...

Page 42: ...nsate for perspective distortion which is illustrated in the following figure Feature Description 1 Although the two red stripes have the same width the lower strip appears more narrow 2 The orange st...

Page 43: ...a 3D Range Image Viewer to view range images in a three dimensional setting The utility allows you to rotate your view of the image around three dimensional space See your Cognex software documentati...

Page 44: ...ixed to the sensor Units mm Image 3D Space Left handed the origin is at the upper left corner of first pixel in image Units pixels X Y pixel values Z Sensor 3D Space The Sensor 3D coordinate system is...

Page 45: ...Image 3D Space Each range image uses a coordinate system defined in Image 3D Space with units defined in pixel values The Z axis contains height information 45 Coordinate Systems...

Page 46: ...ation from Image 3D to Sensor 3D Space Your Cognex vision software performs the mapping between coordinate spaces Motion Direction The motion direction of your conveyor system changes the origin of th...

Page 47: ...When the direction of motion is laser to lens the Y axis points in the opposite direction Laser to Lens Direction 47 Coordinate Systems...

Page 48: ...bject from one of the two directions looks mirrored Here an object arrives in the lens to laser direction and the range image it generates Here an object arrives in the laser to lens direction and its...

Page 49: ...ons may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct...

Page 50: ...d herein may result in hazardous radiation exposure CAN CSA C22 2 No 61010 1 04 Part 1 UL STD No 61010 1 2nd Edition DS1050 Laser Safety Statement DS1101 Compliance with FDA performance standards for...

Page 51: ...Notice No 50 dated June 24 2007 This device has been tested in accordance with IEC60825 1 2nd ed and has been certified to be under the limits of a Class 2M Laser device Use of controls or adjustments...

Page 52: ...January 2018...

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