Configuring signal devices in thermal processing systems

Patent metadata

Field	Value
Publication number	US-10346647-B2
Application number	US-201815863402-A
Country	US
Kind code	B2
Filing date	Jan 5, 2018
Priority date	Apr 4, 2012
Publication date	Jul 9, 2019
Grant date	Jul 9, 2019

Abstract

In some aspects, material processing head can include a body; an antenna disposed within the body; a first tag, associated with a first consumable component, disposed within a flux communication zone of the body at a first distance from the antenna, the first tag having a first resonant frequency; and a second tag, associated with a second consumable component, disposed within the flux communication zone of the body at a second distance from the antenna, the second tag having a second resonant frequency that is different than the first resonant frequency, where the first and second resonant frequencies are tuned based upon at least one of: i) a difference between the first distance and the second distance; or ii) a characteristic (e.g., shape) of the flux communication zone in which the first tag and/or the second tag is disposed.

First claim

What is claimed:

1. A material processing head for reducing communication interference between data tags and an antenna, the material processing head comprising:
a body;
the antenna disposed within the body;
a first tag, associated with a first consumable component, disposed within a flux communication zone of the body at a first distance from the antenna, the first tag having a first resonant frequency; and
a second tag, associated with a second consumable component, disposed within the flux communication zone of the body at a second distance from the antenna, the second tag having a second resonant frequency that is different than the first resonant frequency,
wherein the first and second resonant frequencies are tuned based upon at least one of: i) a difference between the first distance and the second distance; or ii) a characteristic of the flux communication zone in which the first tag and/or the second tag is disposed.

2. The material processing head of claim 1 wherein the second distance is greater than the first distance.

3. The material processing head of claim 1 wherein the second tag absorbs more energy available from the antenna than the first tag.

4. The material processing head of claim 1 wherein the second resonant frequency is closer in frequency to a broadcast frequency than the first resonant frequency.

5. The material processing head of claim 1 wherein the first tag comprises a first coil having a first number of turns and the second tag comprises a second coil having a second number of turns, the second number of turns being greater than the first number of turns.

6. The material processing head of claim 1 wherein the first distance and the second distance are each between 1 mm and 6 mm.

7. The material processing head of claim 1 wherein at least one of the first tag or the second tag is configured to resonate at about 13 MHz.

8. The material processing head of claim 1 wherein at least one of the first consumable component or the second consumable component is removably coupled to the material processing head.

9. A method of facilitating communication, and reducing communication interference, between an RFID tag reader of a material processing head of a material processing system and two or more RFID tags associated consumable components disposed within the material processing head, the method comprising:
positioning a first RFID tag attached to a first consumable component within the material processing head at a first distance from the RFID tag reader, the first RFID tag having a first resonant frequency;
positioning a second RFID tag attached to a second consumable component within the material processing head at a second distance from the RFID tag reader, the second distance being greater than the first distance, and the second RFID tag having a second resonant frequency;
broadcasting a reader frequency from the RFID tag reader to the first and second RFID tags, the reader frequency being closer to the second resonant frequency than to the first resonant frequency.

10. The method of claim 9 further comprising tuning at least one of the first resonant frequency or the second resonant frequency.

11. The method of claim 10 wherein the tuning the at least one of the first resonant frequency or the second resonant frequency comprises: i) selecting a number of turns of a conductive antenna coil within the first RFID tag or the second RFID tag; ii) selecting a diameter of the coil of the first RFID tag that is different than the diameter of the coil of the second RFID tag; or iii) selecting an IC capacitor for the first RFID tag that has a different capacitance than the capacitor of the second RFID tag.

12. The method of claim 9 wherein the second RFID tag absorbs more energy available to it from the antenna.

13. The method of claim 9 wherein the first resonant frequency deviates more from the broadcast frequency than does the second resonant frequency.

14. The method of claim 9 where the first RFID tag comprises a first coil having a first number of turns and the second RFID tag comprises a second coil having a second number of turns, the second number of turns being greater than the first number of turns.

15. The method of claim 9 wherein at least one of the first consumable component or the second consumable component is removably coupled to the material processing head.

Assignees

• Hypertherm Inc

Inventors

• Hoffa Michael
• Shipulski E Michael

Classifications

• B23K26/38

  by boring or cutting · CPC title

• B24C1/045

  for cutting (energy dissipating devices therefor B26F3/008) · CPC title

• B26D5/00

  Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting · CPC title

• B23K26/21

  by welding · CPC title

• B23K5/00 Primary

  Gas flame welding · CPC title