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Title: High Bandwidth Differential Amplifier for Shock Experiments

Abstract

We developed a high bandwidth differential amplifier for gas gun shock experiments/applications. The circuit has a bandwidth > 1 GHz, and is capable of measuring signals of ≤1.5 V with a common mode rejection of 250 V. Conductivity measurements of gas gun targets are measured by flowing high currents through the targets. The voltage is measured across the target using a technique similar to a four-point probe. Because of the design of the current source and load, the target voltage is approximately 250 V relative to ground. Since the expected voltage change in the target is < 1 V, the differential amplifier must have a large common mode rejection. High pass filters suppress internal ringing of operational amplifiers. Results of bench tests are shown.

Authors:
Publication Date:
Research Org.:
Nevada Test Site (NTS), Mercury, NV (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1057096
Report Number(s):
DOE/NV/25946-1504
DOE Contract Number:  
DE-AC52-06NA25946
Resource Type:
Conference
Resource Relation:
Conference: 19th Topical Conference: High-Temperature Plasma Diagnostics
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; shock experiments, differential amplifier

Citation Formats

Ross, P. W., Tran, V., Chau, R. High Bandwidth Differential Amplifier for Shock Experiments. United States: N. p., 2012. Web.
Ross, P. W., Tran, V., Chau, R. High Bandwidth Differential Amplifier for Shock Experiments. United States.
Ross, P. W., Tran, V., Chau, R. 2012. "High Bandwidth Differential Amplifier for Shock Experiments". United States. https://www.osti.gov/servlets/purl/1057096.
@article{osti_1057096,
title = {High Bandwidth Differential Amplifier for Shock Experiments},
author = {Ross, P. W., Tran, V., Chau, R.},
abstractNote = {We developed a high bandwidth differential amplifier for gas gun shock experiments/applications. The circuit has a bandwidth > 1 GHz, and is capable of measuring signals of ≤1.5 V with a common mode rejection of 250 V. Conductivity measurements of gas gun targets are measured by flowing high currents through the targets. The voltage is measured across the target using a technique similar to a four-point probe. Because of the design of the current source and load, the target voltage is approximately 250 V relative to ground. Since the expected voltage change in the target is < 1 V, the differential amplifier must have a large common mode rejection. High pass filters suppress internal ringing of operational amplifiers. Results of bench tests are shown.},
doi = {},
url = {https://www.osti.gov/biblio/1057096}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Apr 30 00:00:00 EDT 2012},
month = {Mon Apr 30 00:00:00 EDT 2012}
}

Conference:
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