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REU Summer 2012 Sensor Project

Alan Young 7/5/12. REU Summer 2012 Sensor Project. Mechanical Sensing System. Goals for project Conduct initial literature review Select an appropriate distance sensor and a pressure sensor to interface with a system

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REU Summer 2012 Sensor Project

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  1. Alan Young 7/5/12 REU Summer 2012 Sensor Project

  2. Mechanical Sensing System • Goals for project • Conduct initial literature review • Select an appropriate distance sensor and a pressure sensor to interface with a system • Use LabVIEW to measure the signals from the sensors and display on a computer

  3. Literature Review • How to use sensors for distance measurement: http://www.waset.org/journals/waset/v51/v51-51.pdf • How to use sensors for pressure measurement: http://www.emant.com/250001.page

  4. Rough sketch of mechanical system

  5. Mechanical Sensor System Base Borrowed base from the Nanofab laboratory Displacement Sensor will attach a cylinder Pressure sensing pad will be located under the cylinder

  6. Uses for project • Assembly line worker • Robotics research • Automated stamper • Robot that can type on a keyboard • Research ways to incorporate sensors to any mechanical system

  7. Displacement Sensors

  8. SICK Displacement sensor Model name: SICK DT10 Type: Red LED Sensor https://impurchasing.mysick.com/partnerPortal/TopFrameset.aspx?lefttarget=../ProductCatalog/Leftnav.aspx%3Fcategory=Produktfinder&righttarget=../ProductCatalog/Datasheet.aspx%3FProductID=41543 50 mm to 500 mm range 3 mm resolution Analog output, Cable interface 2m Cable costs $50 Need to put wires onto a DAQ, which plugs in via USB to a computer Works with NI DAQ: http://sine.ni.com/np/app/main/p/ap/daq/lang/en/pg/1/sn/n17:daq,n36:18/ $359 Needs a power supply (on-off switch)

  9. Keyence Laser distance sensor Model name: Keyence IL-100 Type: Laser http://www.keyence.com/products/sensors/laser/il/il_specifications_1.php?style=print $1,490 $299 RS-232 adapter OR 4-20mA or -5 to 5V outputs

  10. Tactile Sensors

  11. Force Imaging Array from UneoTech • http://www.uneotech.com/ucctw/index.php?option=com_k2&view=item&layout=item&id=173&Itemid=147&lang=en • $10,000 • Comes with sensor pad, electronics controller, and software

  12. Pressure Sensing Sheet from Sensible UI • http://www.sensibleui.com/buy • Initial Resolution: 4.5mm • $399.00 • USB interface with computer • Sold out!!!

  13. Interface Options

  14. Data Acquisition Board • http://sine.ni.com/nips/cds/view/p/lang/en/nid/208789 • NI 9219 • $ 926.10 • Need to make sure one or both sensors are compatible with the DAQ

  15. Distance Sensor Interfaces SICK DT10 Keyence IL-100 Has an option to have an RS-232 adapter, eliminating the need for a DAQ Total price: ~$1789 Resolution of 0.004 mm More expensive, but much better resolution • Has an analog voltage or current that can be plugged into the DAQ • Must buy a DAQ that costs around $1000 • Total price: ~$1300 • Resolution of 3mm • Cheaper, but less resolution

  16. Summary

  17. Products Distance Sensors Pressure Sensors

  18. Recommended choices • Displacement sensor: SICK DT10, $389. Reasons: • Reasonable resolution (3 mm) • Interfaces with DAQ via wires and analog current • DAQ can be used with other sensors • Pressure sensor: SensibleUI, $399. However, currently sold out and need to wait to order. • Reasons: • Other sensors are >$5k or are not interfacable/don’t show a pressure distribution

  19. Other goals • Order the pressure sensor • Create a contour plot of force generated from the pressure sensor • Actuate the mechanical system and control it via LabVIEW • Create publication

  20. Questions?

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