3D applications in the defense market

Whether it is for Reverse engineering, additive manufacturing or 3D printing, the defense industry is using more and more non-contact sensors for high accuracy measurements. Air force, navy and army specialist are using sensors daily for a variety of applications such as 3D printed parts qualification and spare parts replacement, especially in distant army bases or submarines which stay months at sea. This allows them to produce parts fast and accurately, easily shortening the supply chain procedure. Optimet sensors which have the widest angular coverage in the market (170 deg) have an advantage considering that many of those parts have difficult geometric shape and the ability to cover sharp angles is critical.

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Automotive parts defects detection using non-contact sensors

The automotive world is one of the largest developing markets in the world. This industry embraces new technologies both in-line and off-line quality control of production line. Automotive parts are scanned with a variety of metrology tools, different laser sensor technologies and using CMM, all using robots that works 24/7. In this blog I illustrate an in-line defect detection task, where speed is an important issue but exact part measurement is not.

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Thickness measurement using Conoscopic Holography non-contact laser sensors

Using non-contact laser sensors can provide the end users a variety of parameters to measure and characterize surface features such as flatness, roughness, and displacement. One dominant parameter end users want to measure is the thickness of metal, plastic, wood, and glass. In this blog we discuss thickness measurement of diffusive materials. Another blog will discuss thickness measurement of glass and transparent materials, which is more challenging and needs to consider material coefficients.

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The challenge of measuring rubber

Unlike most industrial materials rubber surfaces might be elastic, meaning if you put a little pressure on it, it will curve even if it’s not visible to the naked eye.

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Does Ambient Temperature Affect My Laser Distance Measurement?

Laser distance sensors use a laser diode to accurately measure the distance from the sensor to an object. The use of a laser diode is required since it emits only a discreet and specific wavelength constantly, though consistency of the wavelength depends on the voltage and current the diode receives. If these parameters are changed the wavelength changes as well, even if it’s less than a few nanometers. If the wavelength varies it slightly impacts the behavior of all the optics and lenses in the sensor and might cause a little decrease in the sensor’s performance resulting in a decrease in accuracy. That is why the guidance is to wait ~40 min after the sensor is powered on until it reaches temperature stability and the internal temperature is the same as when calibrated.

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So what is the difference between the CP-10 and CP-10HD sensor?

In the measurement world there is a trade-off between the distance from the sensor and the accuracy of the measurement. This is caused due to the numerical aperture of the sensor’s objective lens. The numerical aperture, or NA , is a dimensionless number that characterizes the range of angles over which the system can accept or emit light. The calculation is NA=n∙sinθ, where n is the index of refraction of the medium in which the lens is working (1.00 for air), and θ is the maximal half-angle of the cone of light that can enter or exit the lens.

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Control 2017 Q&A summary

At Control 2017 trade show Optimet presented its unique technology and applications, the ConoPoint-10 SMART Sensor with its built-in feature library, and Autofocus for material processing Systems. The demos created much interest and excitement.

We gathered together some questions we were asked at OPTIMET’s booth:

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How to Ensure Your CMP Roughness Pad Is Optimal and Extend Its Lifetime

In the semiconductor and optics world there is a very important process known as CMP – Chemical Mechanical Planarization. One of the key players in this process is the roughness pad (A.K.A polishing pad) which is used in the following way:

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When Should I Use an HD Sensor?

When choosing an optical displacement sensor for 2D or 3D scans there are many parameters which need to be taken into account for best results. If you approach an optical distance sensor distributor or manufacturer for a solution to your problem, he will ask you two main questions:

  1. What type of material do you need to scan?
  2. What level of accuracy is needed?
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The Best Way to Scan Coin Reliefs for Minting Perfect Coins

The accuracy of a coin is completely dependent on how well the reliefs or molds are created.

If this isn’t done just right, you risk:

  • Poor quality coins
  • Coins that are not all identical
  • Enabling counterfeiting

Clearly official mints are under a lot of pressure to create measured and traceable mints.

Measuring Coins and Minting Reliefs

Here’s how to they turn a coin relief into digital data.

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