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Specific technical Information
21.2 Ultrasound
21
Ultrasound heads
Frequency
0.8 MHz (800 kMHz) and 2.4 MHz
Small ultrasound head 1 cm² , ERA = 1.1 cm² at 0.8 MHz (800 kMHz), 0.5 cm² at 2.4 MHz
Maximum output
1 W at 0.8 MHz (800 kMHz), 0.5 W at 2.4 MHz
Intensity steps
0.1 to 1 W/cm² eff. in steps of 0.1 W / cm²
Large ultrasound head 5 cm² , ERA = 2.3 cm² at 0.8 MHz (800 kMHz), 2.4 cm² at 2.4 MHz
Maximum output
6.9 W at 0.8 MHz (800 kMHz), 7.1 W at 2.4 MHz
Intensity steps
0.1 to 3 W/cm² eff. in steps of 0.1 W / cm²
Accuracy
< ± 20 %
(This value represents the legally permissible value required by law, and not the
actual accuracy level for each device)
Ultrasound modes
1.
Continuous ultrasound
2.
Pulsed ultrasound, adjustable pulse frequencies:
20 Hz, 50 Hz, 100 Hz
Duty factor: 1:1, 1:2, 1:3, 1:5, 1:10
Note:
Duty cycle 1:10 only provides comfort heating
Replacement parts Ultrasound heads are factory-calibrated and can be easily replaced.
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