1005856-1

40 kHz Ultrasonic Receiver & PreAmplifier Board Wide Horizontal Beam Directivity Broad bandwidth Low Q Resonance Excellent Impact Resistance Low Cost Lightweight Piezoelectric Film (PVDF) Ultrasound Receivers offer unique advantages for air ranging applications. Cylindrical 40kHz PVDF receivers exhibit very wide horizontal beam directivity and broad bandwidth characteristics. These characteristics lend unique solutions in many applications such as two-dimensional positioning, digitizer, object detection, and distance measurement. Depending on the applications, resonance frequency and vertical beam directivity of the receiver can easily be customized by changing the diameter and length of the PVDF cylinder. The receiver has a very wide horizontal beam angle and it can be reduced by changing the housing design if necessary. PVDF receivers also have very low resonance Q value. Typically, PVDF receivers have a Q value of 4. This means that the rising time and the signal decay time are much faster than the conventional ceramic receivers. This characteristic is suitable for high speed data acquisition or high speed digitizer applications. Also, a preamplifier is available for easy evaluation of 40 kHz receivers. FEATURES APPLICATIONS Two-dimensional Position PVDF Thickness: 30 m Resonance Frequency: 40 kHz Detection Digitizer Bandwidth: 10 kHz Distance Measurement Resonance Q: 4 Object Detection Sensitivity Output: 1.5 mV/Pa -76 dB General Purpose Air Ranging Horizontal Beam Directivity: 150 Applications Vertical Beam Directivity: 40 Capacitance: 140 pF Storage Temperature: -20 C - +85C Operating Temperature: +5C - +60 specifications Min Typ Max Unit Supply Voltage 5 VDC Supply Current 0.03 ADC Frequency 40 kHz Gain 31 dB 40 kHz Receiver Rev 1 www.meas-spec.com 05/12/2009 1 of 5 40 kHz Ultrasonic Receiver & PreAmplifier Board dimensions 14.3mm 8.6mm 2.6mm 42.2mm 49.3mm 40 kHz Receiver Rev 1 www.meas-spec.com 05/12/2009 2 of 5 16.3mm 10.5mm 5.0mm 37.3mm 44.7mm