PureView™ Pulser-Receiver Operator Manual
Page 10
Imaginant Inc.
Through
Pulser
(Energy &
Damping)
Amplifier/
Attenuator
Low Pass
Filter
High Pass
Filter
Pulser Voltage
Control Logic
T/R-
Through
Select
PRF Control
USB
Trig/Sync
Output
T/R
Figure 1: PureView System Block Diagram
Control Logic and USB Interface
The USB interface and associated control logic provides control of a PureView instrument through software
resident on a host computer. A USB interface cable is supplied with the instrument.
Pulser (Energy and Damping)
The pulser generates a transducer-excitation pulse upon receipt of a trigger signal from a selected source,
either internal or external. The Pulser energy and damping controls provide control of pulse parameters such
as pulse duration, pulse energy and pulse amplitude. Note that a change to either the Energy or the Damping
value will affect all three pulse parameters.
The pulser produces constant-amplitude pulses over the specified range of pulse repetition frequency. The JSR
.Net Control Panel software and SDK software provide “power limit status” indications to warn a user when
PureView might be functioning beyond the specified range of pulser operation, i.e. at too high a Pulse
Repetition Frequency (PRF) which may result in reduced-amplitude of the transducer-excitation pulses.
Pulser
Voltage
The pulser voltage supply provides power to the PureView pulser circuitry. The pulser voltage may be enabled
or disabled which allows a user to assess signals that are present in a test system with and also without
generating a transducer excitation pulse on the T/R connector. This can be useful for test system debugging.