Purpose
BFS Doppler electronic blood flow simulator is designed for periodic verification, verification of parameters and operation of ultrasound Doppler diagnostic Simulators and ultrasound systems in Doppler mode, as well as spectral and color modes of blood flow mapping.
The simulator is used in regulation, acceptance and other tests of ultrasound Doppler diagnostic devices and systems, as well as for their initial and periodic verification in operation. The simulator can be used for testing ultrasound Doppler diagnostic devices and systems according to IEC TS 61895 and CEI/IEC 61206 in the part that provides or allows the use of electronic blood flow simulator.
Suitable for use by metrological services and manufacturers of ultrasound Doppler diagnostic simulators and ultrasound systems with Doppler modes.
Specification
The simulator is made in a portable version powered by ~ 220 V.
Technical data and characteristics:
| Name of characteristic |
Value
|
| nominal value |
range |
| 1 |
2 |
3 |
| AC supply voltage, V |
220 |
100 - 250 |
| Frequency, Hz |
50 |
47 - 65 |
| Operating acoustic frequency range, MHz |
- |
from 2 to 7,5 |
| Repeat frequency range (RPF) of the verified simulators probing pulse, kHz |
- |
from 1 to 25 |
| Range of duration of the verified simulators probing pulses, μs |
- |
from 0,12 to 4 |
| Simulation signal readiness time after receiving the request signal, s |
no more 5 |
|
| Relative instability of the master quartz oscillator |
- |
± 50×10-6 |
|
Forming simulation signal modes:
- by the form of radiation
- by the spectrum of the Doppler signal |
pulsed and continuous;
harmonic, biharmonic and noise-like with stable frequencies or pulse simulation
|
|
Continuous operation time
|
not limited |
| BFS block dimensions, mm |
200x135x75 |
Metrological characteristics:
| Name of parameter |
Value |
| 1 |
2 |
| Doppler frequency shift control range, kHz |
from minus 45 to 45 |
| Non-uniformity of amplitude-frequency characteristic in the Doppler range, dB |
no more 1 |
| Mirror component level, dB |
no more minus 60 |
| Adjustment range of the output level (at harmonic Doppler signal), dB |
no less 60 |
| Limiting error of the output level range from 0 dB to -60 dB, dB |
no more 1 |
| Pulsation frequency adjustment range, Hz |
from 0,2 to 50 |
| Limiting relative error of pulsation frequency setting |
no more ± 1×10-4 |
| Limiting relative error δf of forming of the maximum frequency of the broadband Doppler signals spectrum |
no more ± 0,5×10-2 |
| Limiting relative error of forming of the average frequency of the broadband Doppler signals spectrum |
no more ± 0,3×10-2 |
Delivery set
- BFS block
- Laptop with software and power supply
- Power supply
- User manual
- Passport
- Bag
