Articles by Dr. Norman Axelrod


How to Select Lighting for Product Inspection and Control

March 3, 2014

To improve the reliability and sensitivity of an optical inspection system, the optical design of the sub-systems and components should be well-matched to both the inspection requirements and the optical properties of the product of interest.

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Vision & Sensors - 3-D Imaging

Optically Enhancing Images

From Basic to 3-D: Inspection and control using optical spatial filtering and diffraction.
May 7, 2013

Image processing is usually done in order to extract information of interest from a busy image or to enhance the image.

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Vision & Sensors 101: The LED Basics

July 3, 2012
Light output per LED has doubled about every two years since 1970. Learn more about this growing technology.

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Photonics, Electro Optics or Optoelectronics?

February 28, 2012
Our intention here is to suggest, for comprehensiveness, the use of all three of these words-photonics, electro optics, and optoelectronics-to any relevant computer searches for products, jobs, literature and more.
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Cognitive Biases and Project Planning

January 19, 2012
Cognitive biases are more common than we imagine, even among folks who are technically well-trained and competent. These can lead to misreading data and faults in project planning.
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Color Imaging: Color: It's Not Always What You See

January 10, 2012
Color is a versatile, non-contact method to identify materials and material variations and its wave properties are commonly used for gauging.
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Measurement: Best Practices for Developing Sensing Systems for Production and Quality Control

January 3, 2012
Make use of available resources and different management environments.
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Auto-Compensated Optical Sensing for Online Applications

September 23, 2011
Auto-compensated photosensing systems are used to increase reliability and sensitivity of on-line defect detection, positioning, and other optical and laser systems.
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Vision & Sensors: LEDS: LEDs 101

September 1, 2011
To see the increasing use of LEDs, just look around. Their growing popularity is driving efforts to improve performance, reduce costs and further expand applications.
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3-D Imaging for On-Line Product and Process Control

July 6, 2011
The selection of an appropriate 3-D technique depends on the feature(s) to be quantitatively determined.
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 In honor of World Quality Month, we spoke to James Rooney, ASQ Past Chairman of the Board of Directors 2013, for his take on quality around the world.
For more information, read the ASQ Speaking of Quality column.
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