Dr. Norman Axelrod

Dr. Norman N. Axelrod (New York, NY) does contract development and consulting on challenging electro-optical sensing & control systems. For more information, visit www.axelrodassociates.com, call (212) 741-6302 or e-mail naxelrod@axelrodassociates.com.  



How to Select Lighting for Product Inspection and Control


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.

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

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?

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

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

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

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

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

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

The selection of an appropriate 3-D technique depends on the feature(s) to be quantitatively determined.
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Charles J. Hellier has been active in the technology of nondestructive testing and related quality and inspection fields since 1957. Here he talks with Quality's managing editor, Michelle Bangert, about the importance of training.
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2015 January

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