Cykeo RFID IoT Solution Products R&D Manufacturer
RFID vs NFC: How to Choose the Best Wireless Technology for Your Business Needs
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MoreCan RFID Handheld Readers Scan Tags Through Metal or Liquid Containers?
Scanning RFID tags through metal or liquid containers is challenging due to signal interference, but specialized tags and optimized RFID handheld readers can overcome these limitations. Here’s a detailed breakdown of the challenges and solutions.
1. Scanning Through Metal Containers
- Signal Reflection:
- Metal surfaces reflect RFID signals, causing read failures or reduced range.
- Solutions:
- On-Metal RFID Tags: Use tags with built-in spacers or ferrite layers to isolate antennas from metal surfaces.
- Adjustable Power: Increase transmit power (up to 33 dBm) to penetrate thin metal barriers.
- Cykeo’s MetalFocus Technology: Enhances signal penetration for industrial or medical equipment tracking.
2. Scanning Through Liquid Containers
- Signal Absorption:
- Liquids (e.g., water, chemicals) absorb UHF signals, limiting read range.
- Solutions:
- Low-Frequency Tags: Use HF (13.56 MHz) tags for close-range scanning of liquid-filled items like IV bags.
- Tag Placement: Attach tags to dry areas (e.g., bottle necks) rather than submerged surfaces.
3. Hybrid Environments (Metal + Liquid)
- Example:
- Medical devices with metal components stored in liquid-filled trays.
- Strategy:
- Combine on-metal tags and HF readers for short-range accuracy.
- Use Cykeo’s MultiMode Scanners to switch between UHF and HF frequencies.
4. Best Practices for Reliable Reads
- Test Signal Strength:
- Use RSSI (Received Signal Strength Indicator) tools to identify dead zones.
- Tag Orientation:
- Align tags perpendicular to the reader’s antenna polarization.
- Avoid Overcrowding:
- Space tags 10–15 cm apart to minimize interference.
Case Study: 95% Accuracy in Pharma Logistics
A pharmaceutical warehouse achieved 95% read rates for metal-cased vaccine vials using Cykeo’s handheld readers and on-metal tags, reducing manual checks by 50%.
RFID handheld readers scan through metal liquid containers
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