Zimmer PhySys - Ultrasound Specifications

Technical information
10.3 Ultrasound
10
Page 38
Transducers
Frequency
0.8 MHz and 2.4 MHz
Ultrasound transducer,
small
1 cm² , ERA = 0.67 cm² at 0.8 MHz,
0.65 cm² at 2.4 MHz
Maximum output
1.0 W at 0.8 MHz, 0.6 W at 2.4 MHz
Intensity levels
0.1 to 1 W/cm² eff. in intervals of 0.1 W/cm²
Ultrasound transducer,
large
5 cm² , ERA = 2.30 cm² at 0.8 MHz,
2.38 cm² at 2.4 MHz
Maximum output
6.9 W at 0.8 MHz, 7.1 W at 2.4 MHz
Intensity levels
0.1 to 3 W/cm² eff. in intervals of 0.1 W/cm²
Accuracy
± 20%
Ultrasound types
1. Continuous ultrasound
2. Pulsed sound, adjustable pulse frequencies 20 Hz, 50 Hz, 100 Hz
Duty cycle 1:10.............9:10
Interchangeability
Ultrasound transducers are calibrated ex works and can be interchanged without any
problems.
Applied part
Transducer oscillator