1005935-1 TE Connectivity

NDT1-220K Ultrasonic Transducer SPECIFICATIONS Low cost ultrasonic transducer Flexible Format 3 MHz nominal center frequency Various housings available High Bandwidth Low Q Performance Description Model No. Part No. Low Impedance Dual layer 110 m NDT1-220K 1005935-1 The NDT1-220K element offers outstanding ultrasonic transducer performance in a low-cost, flexible format for general-purpose use. It has a 3 MHz nominal center frequency, with extremely low Q-factor of 1.3 (air- backed, into PMMA). Electrical impedance is well FEATURES matched to conventional NDT instrumentation (pulsar/receivers). Unit-to-unit repeatability is very good. High Bandwidth, Low Q Performance The transducer is robust, and conforms perfectly to Excellent Acoustic Match to Liquids, cylindrical surfaces such as pipe or tank walls. Epoxies, Polymers transfer adhesives, or even double-coated tapes may be Low Electrical Impedance (30 to 100 ohms typ) used as bonding agents. Lightweight, Robust, Flexible Design Conforms to Flat or Curved Surfaces Low Cost, Disposable Transducers APPLICATIONS Liquid Presence/Absence (through-wall) Thickness Measurement (solids, elastomers) Liquid Depth (bottom-up) Speed of Sound Measurement Tamper Detection SENSOR SOLUTIONS /// NDT1-220K Ultrasonic Transducer Rev 1 9/2015 Page 1 NDT1-220K Ultrasonic Transducer DIMENSIONS IN INCHES IN MILLIMETERS A (film) B (electrode) C (film) D (electrode) .650 17 .485 12 5.51 140 1.18 30 Connector provides two 0.025 square pins on 0.1 spacing and will mate with a wide range of FFC (flexible flat cable) receptacles. PERFORMANCE SPECIFICATIONS NDT1-220K Frequency Response 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 0.E+00 1.E+06 2.E+06 3.E+06 4.E+06 5.E+06 6.E+06 Frequency (Hz) TYPICAL PROPERTIES/SPECIFICATIONS Typical Properties (at 25 C) Parameter NDT1-220K Units 670 pF 1 kHz Capacitance 3 MHz (in PPMA) Center Frequency 1.7 MHz Lower -6 dB Freq 4.0 MHz Upper -6 dB Freq Q-Factor 1.3 (none) Impedance at f(c) 100 Thickness (over length C) 0.30 mm SENSOR SOLUTIONS /// NDT1-220K Ultrasonic Transducer Rev 1 9/2015 Page 2 Magnitude (V rms)