MicroPulse LT Specifications
Pulser Specifications
PulserPulser Voltage25 to 200 Volts25 Volt
Pulser Rise Time ~6 ns N/A
Pulser Width 20 nsec to 500 nsec2 nsec
Pulser Damping50Ω to 660Ω in 8 steps N/A
Pulse Repetition Frequency1 Hz to 20 kHz 1 Hz
Receiver Specifications
Receiver AmplifiersGain - 12 to 70 dB 0.25 dB
*Max DAC plus main gain is 110 dB
Input Noise 2 nV typical N/A
Gain Linearity Better than 0.25dBN/A
Input Impedance660 Ω N/A
Bandwidth .75 MHz to 25 MHz (-3 dB)N/A
Channel Crosstalk< 60dB between channels at 2 MHz
FiltersAnalog Filters 0.75 MHz to 12 MHz (-3 dB) Bandpass FilterDiscrete selection
2.5 MHz to 18 MHz (-3 dB) Bandpass Filter
3 MHz to 22 MHz (-3 dB) Bandpass Filter
3 MHz to 25 MHz (-3 dB) Bandpass Filter
0.5 MHz Bandpass Filter
1 MHz Bandpass Filter
2 MHz Bandpass Filter
4 MHz Bandpass Filter
5 MHz Bandpass Filter
10 MHz Bandpass Filter
Distance Amplitude Correction DAC Dynamic Range 0 to 70 dB0.25 dB
*Max DAC plus main gain is 110 dB
DAC TriggerTransmit pulse or material interface echo User selectable
No of DAC curves 256 utilising up to 32 kbytes
DAC update40 dB/Ásec
DAC Clock Rate1.5625 MHz to 25 MHz5 settings
Digitizer and Digital Processing
Digitizer ADC Resolution12 bitsN/A
ADC Rate25, 50, and 100 MHzUser selectable
Rectification Rectification No Rectification
+ve halfwave
-ve halfwave
Discrete selection
Post Rectification FilterNone and 7 selectable settings
Hardware GatesGates4 gates utilizing up to 32 kbytes
Gate Delay64 k sample points from trigger or I/F echo
Interface EchoHardware interface trigger for gate and DAC
Digital Processing Hardware Peak ProcessingUp to 80 peaks (N + largest), first peak, largest peak
Averaging2 to 256 real-time
Output OptionsPeak processed data or full digitized waveform
Threshold160 to 40951
Gain Reduced Firing Selectable to be triggered on saturation with programmable adjustment level
General Specifications
InterfacesControl Interface100 Base-T Ethernet , Gigabit Ethernet
Digital Encoders 2 axes of differential quadrature inputs accepting 5 Volt encoders
at rates of up 700 kHz
Analog Encoders 2 channels. 0-5V (1MΩ input impedance) up to 100Hz signal
ConnectionsUT ConnectorsCoaxial LEMO EPS 00.250.NTN
Suitable mating connector:
LEMO FFA.00.250.CTAC29
Control ConnectorIP67 rated 9-pin D-Sub
Encoder ConnectorLEMO EXG.1B.310.HLN
Suitable mating connector:
Aux. Power ConnectorLEMO EXG.0B.302.HLN
Suitable mating connector:
PhysicalCase Size160 mm x 45 mm x 108.5 mm
Power Supply48 V DC from Ethernet (Class 3) or separate supply (48 V 300 mA)
Power Consumption10 W Max
Weight 550g
Environmental EnclosureIP67 (No dust ingress, temporary immersion up to 1 m depth)
TemperatureOperating: 0 to 40 ░C
Storage: -20 to 70 ░C

Product Ordering Options

The following options can be specified when ordering MicroPulse LT instruments:

Dynamic Range Expansion - DRE option
8-Channel instruments may be ordered with the DRE option. Operation is selectable for normal mode with 8 active channels or DRE enabled with 4 active channels.

Related Resources
Wide Dynamic Range Acquisition for Ultrasonic Signals
This paper describes our progress in the development of a novel technique of dynamic range expansion we call DRE. The resulting algorithms provide 16 effective bits and a spurious-free dynamic range of 96dB for most RF digitizers
» Support » White Papers
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