9/2015

Page 1

DIMENSION in INCHES (mm)

A

Film

B

Electrode

C

Film

D

Electrode

t

(

μm)

Cap

(nF)

.640 (16)

.520 (13)

1.64 (41)

1.18 (30)

75

2.78

SDT SHIELDED PIEZO SENSORS

SPECIFICATIONS



Shielded coaxial cable lead



Shielded sensor



Low noise



Flexible



Multi-purpose



Piezo film Technology

The “S” in SDT stands for “Shielded Sensor.”

SDT1 Piezo Film Sensors consist of a rectangular

element of Piezo film together with a molded plastic

housing and 18” of coaxial cable. The film element, screen

printed with silver ink, is folded over on itself, providing

self-shielding of the transducer area. This is important in

applications in high EMI environments.

The SDT1 can be adhered to other surfaces using

double sided adhesives, epoxy or cyanoacrylate (super

glue). Care should be taken if the sensor is to be removed,

as the double-side adhesive can peel the metallization

from the film.

When adhered to a surface in this manner, the

SDT1 is an excellent contact microphone or dynamic

strain gage. The output from the SDT1 can input directly to

an oscillosco

pe (10 MΩ preferred input impedance) or a

signal analyzer.

FEATURES



Shielded piezo film sensor



High longitudinal strain coefficient



Integral coax cable



Wide frequency response

APPLICATIONS



Machine monitoring



Acoustic emission detection



Contact microphone



Vibration / impact sensing



Detecting machine tool chatter



Acoustic pickup



Vibration analysis for equipment and product design

DIMENSIONS