Dec 192011
 
power
by i5a

Question by xx_Erin_xx: What is the minimum power of laser pointer that could pop a balloon?
Just wondering what would be the minimum power of laser pointer that could pop a balloon? What would be the minimum power of laser pointer that could make a hole in a bin liner? What would be the minimum power of laser pointer that could light a match?

Best answer:

Answer by Chris Chen
To pop balloons with a laser pointer, you would need a green laser pointer 95mW or above. A tip about popping balloons is to use only black colored balloons. If your balloon is not black, color the balloon with a black marker.

Another trick is to use a magnifying glass to focus the laser pointer’s beam. If you use a magnifying glass, you may get away with popping balloons with a 55mW to 75mW laser pointer.

You can learn more about laser power here: http://www.skylasers.com/laser-power.html

Give your answer to this question below!

Apr 042011
 

The Laser Barcode Scanner to RFID Identification: A Metamorphosis

The Laser Barcode Scanner to RFID Identification: A Metamorphosis


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Home Page > Business > Organizational > The Laser Barcode Scanner to RFID Identification: A Metamorphosis

The Laser Barcode Scanner to RFID Identification: A Metamorphosis

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Posted: Jul 12, 2009 |Comments: 0
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However, for the modern day business this solution may appear somewhat limited. The logical and physical process behind using a laser handheld barcode scanner is a slow one since barcodes are a linear, line of sight technology which required human interaction most of the time. In addition, laser barcodes are restricted in how much information they can store. A new system needed to be developed.

RFID is a wireless data collection technology that can take the shape of a small chip and can be attached to a product. The use of radio waves means that RFID chips do not need to be in direct contact with a receiver and can be tracked by location through wireless or cellular points or GPS. In addition, where traditional barcodes can be tampered with, information is hard-wired within the chip itself. Furthermore, multiple tags can be read at once.

Characteristics of RFID Asset Tracking

As a relatively new technology, it is important to understand the characteristics of RFID tags that differ from traditional laser barcode scanner barcodes. First of all, memory is defined as the ability to read and write to the tag. A read only tag often includes just a unique identifier, such as product code. The distance that RFID tags can be read from is always increasing and it is important to note that high frequency tags have a longer range, currently around 1 metre whereas low frequency tags have a range less than 25cm. Finally, active tags are powered with an internal battery but in order to maintain cost effectiveness and small form, passive RFID tags are powered by the reader.

Real World Applications

Since RFID tags have enhance sensing capabilities and the ability to transmit information, there is potential for regulating product or stock. Boxes of fish, the physical product that moves its way through the supply chain, can be monitored for temperature or whether it has been properly stored. If any one of its configured parameters is violated, such as an increase in nominal temperatures, an alert can be sent via SMS or another form of communication.

The End of the Laser Barcode Scanner?

One aspect of improving supply chain management is increasing the efficiency of sending and receiving goods. For example, a number of large retailers now require suppliers to use RFID tags on goods, such as pallets, to allow stock management to take place much more efficiently at the retail site. Suppliers can tag their goods as they leave the warehouse with information such as identification, priority levels and stock handling information.

RFID tags are extremely powerful devices that certainly have their advantages. However, just like barcodes and laser barcode scanners, RFID tags need to be standardised to allow effective communication between devices.

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Handheld Barcode Scanner Guide (http://www.handheldbarcodescannerguide.com) is a regularly updated guide on choosing the best barcode scanners, including the laser barcode scanner, PDA barcode scanner, CCD barcode scanner and the best asset management software.

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Role of radio frequency identification RFID in inventory management

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Source:  http://www.articlesbase.com/organizational-articles/the-laser-barcode-scanner-to-rfid-identification-a-metamorphosis-1031510.html

Article Tags:
barcode scanner, handheld barcode scanner, laser barcode scanner, rfid tags, rfid tagging, rfid asset tracking, asset tracking, inventory tracking, rfid equipment

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Handheld Barcode Scanner Guide (http://www.handheldbarcodescannerguide.com) is a regularly updated guide on choosing the best barcode scanners, including the laser barcode scanner, PDA barcode scanner, CCD barcode scanner and the best asset management software.

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Dmitri Tsyboulski performs single nanotube experiment with tunable Ti:Sapphire laser Trestles Finesse. More details on related research can be found on Professor Bruce Weisman website. Dr. R. Bruce Weisman and his group investigate the spectroscopy and photophysics of fullerenes and carbon nanotubes. All of these are closed nanoscopic structures formed from carbon atoms. Fullerenes, such as C60, C70, and their chemical derivatives, have unusual molecular properties that cause interesting behaviors following the absorption of light. Time-resolved absorption and emission methods are used to study radiationless decay, photochemical reactions, and energy transfer in fullerenes. Another major research topic is single-walled carbon nanotube spectroscopy. Following the discovery in Weisman?s lab of near-infrared nanotube fluorescence, the group has measured and unraveled the absorption and emission spectra of more than 30 semiconducting nanotube species. Follow-up projects include detailed elucidation of nanotube electronic structure, as well as applications in non-invasive biomedical imaging and analytical nanotechnology. Few publications and abstracts are cited below: Laurent Cognet, Dmitri A. Tsyboulski, John-David R. Rocha, Condell D. Doyle, James M. Tour and R. Bruce Weisman “Stepwise Quenching of Exciton Fluorescence in Carbon Nanotubes by Single Molecule Reactions.” Science, 316 (2007): 1465-1468. Dmitry Tsyboulski, Ph.D. “Spectroscopic and Optical Imaging Studies of
Video Rating: 5 / 5

The poison must stop!!! We are not lab rats!!!!

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