12 Specifications
229
Toco
US Intensity CL (866076) Average output power P = (12.4 ± 0.4) mW
Peak-negative acoustic pressure p_ = (49.1 ± 5.2) kPa
Output beam intensity (I
ob
)
(= spatial average - temporal average
intensity)
I
sata
= (2.77 ± 0.56) mW/cm
2
Spatial-peak temporal average intensity I
spta
= (21.1 ± 5.1) mW/cm
2
Effective radiating area @ -12 dB A
-12dB
= (4.47 ± 0.89) cm
2
Thermal index (TI) and mechanical index (MI) are always below 1.0.
Signal Quality Indication Poor Quality empty
Acceptable Quality half-full
Good Quality full
Beat-to-Beat change (max.) for Ultrasound 28 bpm
US Frequency 1 MHz ± 100 Hz
US Signal range 3.5 μVpp—350 μVpp @ 200 Hz
US Burst Repetition Rate 3.0 kHz
Duration ≤100 μs
FMP Signal Range @ 33 Hz 200 μVpp—40 mVpp
Performance Specifications
Performance Specifications
Toco
Measurement Method Strain Gauge Sensor Element
Sensitivity 1 unit = 2.5 g
Resolution Display 1 unit
Printer 1/4 unit
Measurement Range 400 units
Signal Range 0—127 units
Maximum Offset Range -300 units
Baseline Setting 20 units
Update Rate Display 1 per second
Printer ~4 per second
Auto Offset Correction 3 seconds after connecting the transducer, the Toco value is set
to 20 units
Auto Zero Adjust Toco value is set to zero following a negative measurement
value for 5 seconds
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