RFID Pressure Sensor

Wireless and IoT
1

I am looking for a small, passive RFID tag with an embedded pressure sensor capable of measuring around 100 psi. I would like to stick this to the inside wall of an aluminum pressurized can so I can wirelessly read the internal pressure with a RFID reader outside the can. Does anyone know of a cost effect solution out there for this application?

2

Hello jfriend,

That would be a nice set of features. Unfortunately, I am not aware of any such item. However, you may want to explore an automotive technology known as an active real-time Tire Pressure Monitoring System (TPMS). With this technology you attach a small sensor to the tire’s Schrader valve. Each sensor then sends wireless data to a central display.

Best wishes adapting this or related technology to your needs.

APDahlen

3

Hi,
Welcome to the Digikey tech forum. I’m not aware of any RFID tag with pressure sensor built in but take a look at these tire pressure sensors or this pressure sensor, Digikey part 448-SP4001511XTMA1CT-ND. Maybe you can incorporate one of these in your design.

4

Please note that a metallic vessel would function as a Faraday cage, preventing RF transmissions across its boundaries.

2 Likes
5

I am not aware of any pressure sensor embedded RFID tag. You can use an Arduino+Pressure sensor+RFID tag+reader. You already have got suggestions regarding pressure sensor. You can choose MFRC522 RFID reader for the RFID part: