Olympus OmniScan MX2, User Manual

Page: 152 / 228

DMTA-20015-01EN [U8778402], Rev. J, January 2014
Appendix D 140
D.1 Acoustic Specifications
This section outlines the number of channels available per acquisition module, and
the acoustic specifications for the pulser and the receiver (see Table 38 on page 140).
Table 38 Acoustic specifications
Number of channels
Pulse-echo mode 2 channels, OMNI-M-UT-2C
4 channels, OMNI-M-UT-4C
8 channels, OMNI-M-UT-8C
Pitch-catch mode 1 pulser and 1 receiver, OMNI-M-UT-2C
2 pulsers and 2 receivers, OMNI-M-UT-4C
4 pulsers and 4 receivers, OMNI-M-UT-8C
Pulser
Voltage 50 V, 100 V, 200 V, 300 V
Pulse width Adjustable from 30 ns to 1000 ns; resolution
of 2.5 ns
Fall time Less than 7 ns
Pulse shape Negative square pulse
Output impedance <7
Ω
Receiver
Receiver gain range 0 dB to 100 dB, maximum input signal
20 Vp-p
Input impedance 50
Ω
Bandwidth 0.25 MHz to 32 MHz (–3 dB)