Piezo spiral wrapped coaxial cable

Piezo cable is another form of piezo polymer sensors. Designed as a coaxial cable, the Piezo polymer is the dielectric between the center core and the outer braid. When the cable is compressed or stretched, a charge or voltage is generated proportional to the stress.

Piezo cable has a number of advantages in certain applications. Due to its coaxial design, the cable is self-shielded, allowing its use in a high EMI environment. The piezo cable can be spliced to passive coax, using standard coax splice techniques. It is extremely rugged and will stand up to heavy loads. Its linear format makes it ideal for monitoring large areas.

In the cable construction, two narrow ribbons of PVDF film are helically wound around the inner conductor, which comprises 20 awg stranded silver-plated copper wire. The cable is then braided, and jacketed with an extruded high-density polyethylene.

The cable is available in short lengths (in multiples of 1 m), or as single cut lengths wound on spools.

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Features

• Passive, long length sensor
• Very tough, water resistant and flexible
• Temperature stability to 85°C
• Self-shielded coaxial construction
• High voltage response
• Low impedance per unit length
• Field repairable
• Simplified interconnections

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Applications

• Perimeter intrusion detection
• Safety and security fencing
• Door edge/vehicle bumper switch
• Cable tampering detector
• Weather sensing/rain/hail
• Structural NDT/strain/vibration
• Underwater acoustics
• Patient mattress monitor
• Sports scoring/foul line

Documents and Files

	File	Date	Size
	Piezo spiral wrapped coaxial cable datasheet (English)	01-09-2016	221KB
	Piezocables: properties (English)	30-05-2001	484KB
	Piezocables: applications (English)	14-10-1999	107KB
	Piezofilm sensors technical manual (English)	02-08-2012	1.9MB
	Piezofilms FAQs (English)	02-05-2007	147KB
	Interfacing piezofilms to electronics (English)	01-03-2006	573KB
	Applying piezoelectric film in electronic designs (English)	16-12-2009	205KB