By Paul Thomas, Managing Editor Ambient moisture and humidity are also thought to impact signal strength and thus read rates. While pharmaceutical production and warehousing areas tend to be humidity-controlled, have you had any issues along these lines? This is a fact and I believe there are even some published test reports available. Weve not had issues to date and not likely to within our four walls. Pharmaceuticals need to be kept within controlled temperatures and humidity throughout the entire supply chain. Its a bit more environmentally friendly than consumer goods sitting in warehouses with no temp or humidity control. Have you been testing RFID (either HF or UHF) on blister packs and other types of packages, and if so, have you experienced readability challenges? Weve done some exploratory testing with HF on blister packs and even Rolaids (roll of tablets in a foil liner). In general, we would seek to minimize changes to packaging wherever possible and balance the needs of business and RFID performance. The challenges will be to economically get the tag on the package in a location conducive to managing the effects of metal content. You can try and fight the fact that there is metal present. However, a better approach is to take into account the metal content and properly tune the tag. This is an old trick used on some EAS theft-deterrent labels. A problem can occur, however, where the tag will then not work properly in the absence of metal which makes scalability an issue. Metal is more of an issue with UHF because even though you can tune UHF tags, metal still reflects the propagating wave component of near-field UHF. Thus you get RF in places you dont want it. How much have you learned about optimizing RFID read rates through trial
Products & Services
RFID readers communicate with RFID tags via radio waves. They also send information in digital form to a computer system.
RFID Chips, or radio frequency identification chips use radio signals to transmit data over short distances. They are typically used for security, tracking and identification applications. RFID Chips can be paired with other circuitry to create a RFID tag or reader.
RFID tags are microchips that attach to an antenna and are designed to receive signals from and send signals to RFID readers. They are sometimes called transponders.
RFID transceivers are combination receiver/transmitter devices that RFID readers and RFID tags use to communicate with each other.
Radios are communication systems that send and/or receive electromagnetic waves. Devices such as citizens’ band (CB) radios, walkie-talkies, and handie-talkies are two-way radios that can be used for interpersonal communications.
Topics of Interest
By Paul Thomas, Managing Editor Vials present unique challenges, because tags on vials can be detuned if wrapped or bent. When vials rotate on conveyors, labels can be oriented away from an RFID...
By Paul Thomas, Managing Editor If theres anything thats well understood about how drug packaging materials impact the success of RFID applications, it is that nothing is well understood.
By Paul Thomas, Managing Editor As it does on many fronts, Pfizer is taking the lead in implementing RFID (radio frequency identification) for product protection and supply chain oversight. It will be...
By Paul Thomas, Managing Editor A general consensus has developed in the pharmaceutical industry that high frequency (13.56 MHz) radio frequency tags are better suited for item-level deployment on...
A new study concludes that high frequency (HF) RFID tags trump ultra high frequency (UHF) tags for use with item-level pharmaceutical products. The study would seem to verify a developing consensus...