Ultrasonic Equipment Setup

Last updated June 10, 2002

Overview

The ultrasonic equipment is currently used in 13-ID-D in conjunction with the 1000 ton LVP for acoustic measurements under high pressure and high temperature. In principle, it can also be used in 13-BM-D on the 250 LVP. The set up instruction given below is based on operations in 13-ID-D.

Components

TDS5104 Oscilloscope (“Scope”)

AWG2021 Arbitrary Waveform Generator (“Waveform Generator”)

CFG253 Function Generator (Function Generator”)

All these three components are mounted in a blue rack that is rolled inside the hutch during ultrasonic experiment

MicroExtender for controlling Waveform Generator outside of hutch

Additional Monitor/mouse/keyboard outside the hutch

BNC Connectors, terminators, cables

Spring-loaded connection pin

Acoustic transducers

T-25 module, Anvils and cell assembly

Connection

Connection between components

• Connect Function generator Output (SYNC, TTL£5V) to the Waveform generator Trigger Input (1 MW £ 10 V p-p) with a BNC cable
• Connect Scope Channel 4 (CH 4) to the Waveform Generator CH1 SYNC (3V) with a BNC cable (note: this is the fourth connection terminal from left)
• Connect Scope channel 1 (CH 1) with Waveform Generator channel 1 (CH 1) with a TEE in the middle of the connection. Connect another BNC cable to the bottom connection pin to be installed in the bottom guide block of T-25.
• Connect the Network port (back of the rack) on the Scope to the “Network, IDD-AD1” port on the DAC hutch panel, with an Ethernet cable. This allows the scope to be on the GSECARS network so that data files can be saved/transferred over the network
• Connect the MicroExtender (back of the rack) to the “Computer AD1” port on the LVP hutch panel, so that the scope can be controlled/viewed on the monitor outside the hutch.

Settings

• Function Generator:
• The button labeled “Volts Out” should be pushed in (for 0-2 V P-P)
• Frequency dial should be set around 0.45
• Range (Hz): select “1 K” by pushing in the corresponding button
• Waveform Generator:
• Make sure channel 1 (CH 1) is selected (green indicator on)
• Under “Menu”, select “Set”
• Oscilloscope: See user manual

Note: The rack that contains all the electronics must be lead-shielded in the hutch during experiment to reduce the risk of radiological damage.

Setup in T-25

• Spring-loaded connection pin is inserted at the triple junction between the three bottom wedges in the lower guide block. The blue coated wire is inserted in between the front two wedges
• A 50 W terminator is connected to a TEE, which connects the pin cable and the input cable (from the Scope). The TEE, resting on the containment ring of T-25, must be insulated by insulating tape and must be securely held by additional tape.
• A ground connection must be secured by taping the ground connector to the bottom containment ring of T-25.