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S1803 – Longitudinal wave DPC transducer 100 KHz

S1803 – Longitudinal wave DPC transducer 100 KHz
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S1803 – Longitudinal wave DPC transducer 100 KHz - 1

Ultrasonic transducer S1803 DATA SHEET Intended use A general-purpose low-frequency transducer S1803 for the dry-point-contact (DPC) excitation or acquiring longitudinal ultrasonic waves in highly scattering materials (concrete, wood, stones etc.) can be used in ready-made housing with the Lemo00 plug or non-wired for self-tailored applications, e.g. for customization of transducer arrays by the customer. Main technical specifications Type of transducer: Type of generated wave mode: Special properties: Nominal frequency: Electric capacity of the piezoelectric element: Maximum excitation pulse voltage: Delay time in transducer protector: Connector type: Overall dimensions: Weight: Operating temperature range: Dry-Point-Contact (DPC) Longitudinal Couplant-free operation 100 kHz 950 ± 50 pF 400 V 0,9 s LEMO00.250 11x22.6 mm 14 gr from -20 to +50 ◦C Measurement conditions and equipment used Temperature 25ºC, rel. humidity 43% Generator transmitting signal: square pulse with 200 V amplitude, duration 10 s Receiving path parameters: integrating amplifier bandwidth 0.001 – 40 MHz, noise 0.7 V / Hz, input resistance 4 kΩ. Calibration sample: 3D box UCB500, plexiglass, thickness 175 mm, longitudinal wave velocity 2700 m/s, transversal waves velocity 1300 m/s. Measured characteristics Amplitude frequency response Shape of the measured pulse Time, s Pulse duration: Maximum AFR frequency fp: Lower AFR frequency (-3 dB level) fl: Upper AFR frequency (-3 dB level) fu: Operating AFR frequency fc: 80.3 kHz Nominal double conversion ratio Srel:-60 dB Absolute band width P: 24.4 kHz Relative band width Bw: 22.4 % © Acoustic Control Syst

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