where expertise comes together - since 1996 -

The Largest Open Access Portal of Nondestructive Testing (NDT)

Conference Proceedings, Articles, News, Exhibition, Forum, Network and more

where expertise comes together
- since 1996 -

GRANPECT COMPANY Ltd

909 views
Technical Discussions
Michael
Director, Vice President, Accounts
Inspection Consultants International Philippines, Philippines, Joined Feb 2004, 1

Michael

Director, Vice President, Accounts
Inspection Consultants International Philippines,
Philippines,
Joined Feb 2004
1
07:19 Feb-02-2004
Low Absorption Coefficients for Polymers

We are doing some research on different polymers that can contain an RFID Chip inside. We need to find different polymers with a low absorption coefficient at 915MHz and are having some trouble locating information on this.

Does anyone out there have any sites that may be helpful in finding these polymers w/ their absorption coefficients?

Thanks in advance
Michael


    
 
 
Jaeseok Park
Jaeseok Park
08:04 Feb-02-2004
Re: Low Absorption Coefficients for Polymers
----------- Start Original Message -----------
: We are doing some research on different polymers that can contain an RFID Chip inside. We need to find different polymers with a low absorption coefficient at 915MHz and are having some trouble locating information on this.
: Does anyone out there have any sites that may be helpful in finding these polymers w/ their absorption coefficients?
: Thanks in advance
: Michael
------------ End Original Message ------------

915MHz is pretty high frequency for polymer, I guess. I dont know what RFID Chip exactly is, but I can comment you polystyrene made by extrusion have most lower absortion coefficient ever I experienced.


    
 
 
Udo Schlengermann
Consultant, -
Standards Consulting, Germany, Joined Nov 1998, 176

Udo Schlengermann

Consultant, -
Standards Consulting,
Germany,
Joined Nov 1998
176
05:35 Feb-03-2004
Re: Low Absorption Coefficients for Polymers
----------- Start Original Message -----------
: We are doing some research on different polymers that can contain an RFID Chip inside. We need to find different polymers with a low absorption coefficient at 915 MHz and are having some trouble locating information on this.
: Does anyone out there have any sites that may be helpful in finding these polymers w/ their absorption coefficients?
: Thanks in advance
: Michael
------------ End Original Message ------------

Explanation an question?

RFID means Radio frequency Identifacation.
i.e. a cheap intelligent tag bearing a chip (useful for all products), to replace the barcode-tag, e.g.

Do you mean ultrasonic attenuation at appr. 1 GigaHertz?

Kind regards
Udo Schlengermann
GE Inspection Technogies Systems


    
 
 
Michael
Michael
07:26 Feb-03-2004
Re: Low Absorption Coefficients for Polymers
Sorry if I was a little unclear about some things.
Like the previous poster said the RFID Chip sends data through RF Signals. The second part of an RFID Tag, is a Reader. This reader will pick up the signals from about 12 inches or more away depending on the chip/reader combo.

In our case, the RFID Chip that we will be using will be sending out its data on the RF Frequency of 915 MHz. What we are looking for now is a material that can withstand the heat, probably at least 200-250F, easily moldable so we can insert the tag inside of the material, and has a low absorption coefficient so when the RFID tag sends out the RF Signal the material will not absorb it and make the tag unreadable.

We were told to look at the Absorption Coefficients, the lower the better, but as of yet we havent found a good source that lists this data. Any information of where we can look, websites, books, whatever, would be extremly helpful.
----------- Start Original Message -----------

: Explanation an question?
: RFID means Radio frequency Identifacation.
: i.e. a cheap intelligent tag bearing a chip (useful for all products), to replace the barcode-tag, e.g.
: Do you mean ultrasonic attenuation at appr. 1 GigaHertz?
: Kind regards
: Udo Schlengermann
: GE Inspection Technogies Systems
------------ End Original Message ------------




    
 
 
i have what you are looking for
i have what you are looking for
01:00 Sep-18-2005
Re: Low Absorption Coefficients for Polymers
----------- Start Original Message -----------
: : We are doing some research on different polymers that can contain an RFID Chip inside. We need to find different polymers with a low absorption coefficient at 915 MHz and are having some trouble locating information on this.
: : Does anyone out there have any sites that may be helpful in finding these polymers w/ their absorption coefficients?
: : Thanks in advance
: : Michael
: Explanation an question?
: RFID means Radio frequency Identifacation.
: i.e. a cheap intelligent tag bearing a chip (useful for all products), to replace the barcode-tag, e.g.
: Do you mean ultrasonic attenuation at appr. 1 GigaHertz?
: Kind regards
: Udo Schlengermann
: GE Inspection Technogies Systems
------------ End Original Message ------------

respond immediatley



    
 
 

Product Spotlight

Swift & Scorpion2 - a state-of-the-art remote-control ultrasonic crawler

The Swift and Scorpion2 dry-coupled, remote-access ultrasonic crawler bring major efficiency and d
...
ata improvements to tank shell inspections and other structures such as vessels and offshore installations.
>

Immersion systems

ScanMaster ultrasonic immersion systems are designed for high throughput, multi shift operation in a
...
n industrial or lab environment. These fully integrated systems provide various scanning configurations and incorporate conventional and phased arrays technologies to support diverse applications, such as inspection of disks, bars, shafts, billets and plates. All of ScanMaster immersion systems are built from high accuracy scanning frames allowing for scanning of complex parts and include a multi-channel ultrasonic instrument with exceptional performance. The systems are approved by all major manufacturers for C-scan inspection of jet engine forged discs. Together with a comprehensive set of software modules these flexible series of systems provide the customer with the best price performance solutions.
>

PROlineTOP Plug & Play Ultrasonic inspection device

As Plug & Play solution it units all control and operation elements in a small housing and therefo
...
re replaces the typical control cabinet...
>

Research Center IDEKO develops an ultrasonic train wheel inspection system for CAF

The Basque Research centre IK4-IDEKO has developed a state-of-the-art ultrasonic inspection system f
...
or the train wheel. This system secures a sound condition of train wheels and is thus a significant contribution to rail transport safety. The device was delivered to CAF recently and its use allows the manufacturer to become an approved supplier of rolling stock in Italy, as it meets the demanding homologation standards of this country. \\\\r\\\\n
>

Share...
We use technical and analytics cookies to ensure that we will give you the best experience of our website - More Info
Accept
top
this is debug window