Ultrasonic transducer S1801 DATA SHEET Intended use Main technical specifications Type of generated wave mode: Nominal frequency: Double conversion ratio: Electric capacity of the piezoelectric element: Maximum excitation pulse voltage: Connector type: Weight: Weight: Operating temperature range: Shear horizontal 50 kHz > -100 dB (600 ± 650) pF < 200 V LEMO 00.250 24×Ø11 mm <8g -20 °C to +50 °C Measurement conditions and equipment used The transducer test is performed by its direct contacting with the reference transducer with the pressing force of 4 Newtons. The transducer under test is fed by a transmitter pulse, while the signal acquired by the reference transducer is evaluated. The double-conversion ratio is calculated as a ratio of the first halfwave amplitude received by the reference transducer to the transmitter pulse amplitude. The operating frequency corresponds to the frequency spectrum maximum of the first signal cycle. Excitation signal: square pulse with the amplitude 200 V, duration 10 μs, equal to half period of the nominal. Receiver parameters: integrating amplifier with the bandwidth 0.01 Hz – 400 kHz, input resistance 4 kΩ, equivalent input noise voltage 10 μV. Environmental temperature 26 °C, rel. 35 %. conditions: Amplitude-frequency response Level, rel.un. Measured characteristics Shape of the measured pulse Time, μs AFC frequency maximum first wave ƒp: First half wave duration τ: ©Acoustic Control Systems - ACS Group Frequency, kHz Double conversion ratio AFCmaximum Srel: Leading front duration td: