Search the archive: |
| | |
While 134.2 kHz low frequency (LF) RFID technology has been used to identify everything from livestock to automotive parts since the late 1980s, a host of new applications are demanding tags with improved performance in highly metallic and other harsh industrial environments. Texas Instruments Incorporated (TI) has now made two additions to its LF product family: the 12 mm Multi-Usage Wedge Transponder and 24 mm LF Circular Inlay. The 12 mm Multi-Usage Wedge Transponder offers improvements in chip circuitry that enable direct-on-metal mounting. The 24 mm LF Circular Inlay, manufactured using TI's patented tuning process, provides improved consistency in read and write performance in applications such as waste management and industrial production. The tags incorporate TI's half-duplex (HDX) radio communication, which boosts read range by 50% compared with full-duplex (FDX) LF and offers a stronger RF signal because the HDX reader shuts down during the HDX tag's response. This allows the HDX reader to concentrate on receiving the signal thereby obtaining an accurate read as compared to FDX. In FDX systems, the reader signal remains on and may create RF interference as it attempts to read the FDX tag. HDX also features frequency shift keying technology which makes TI's tags more immune to electromagnetic interference (EMI) and other ambient environmental noise, allowing the reader to effectively read and differentiate tags that are close together.
Source: Texas Instruments
|
|
|
