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Title: In-situ calibration: migrating control system IP module calibration from the bench to the storage ring

Abstract

The Control System for the Advanced Light Source (ALS) at Lawrence Berkeley National Lab (LBNL) uses in-house designed IndustryPack(registered trademark) (IP) modules contained in compact PCI (cPCI) crates with 16-bit analog I/O to control instrumentation. To make the IP modules interchangeable, each module is calibrated for gain and offset compensation. We initially developed a method of verifying and calibrating the IP modules in a lab bench test environment using a PC with LabVIEW. The subsequent discovery that the ADCs have significant drift characteristics over periods of days of installed operation prompted development of an ''in-situ'' calibration process--one in which the IP modules can be calibrated without removing them from the cPCI crates in the storage ring. This paper discusses the original LabVIEW PC calibration and the migration to the proposed in-situ EPICS control system calibration.

Authors:
;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director, Office of Science (US)
OSTI Identifier:
796102
Report Number(s):
LBNL-50191
R&D Project: 458030; TRN: US0201448
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Conference
Resource Relation:
Conference: Beam Instrumentation Workshop, Upton, NY (US), 05/06/2002--05/09/2002; Other Information: PBD: 30 Apr 2002
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ADVANCED LIGHT SOURCE; CALIBRATION; CONTROL SYSTEMS; STORAGE RINGS; IN-SITU CALIBRATION IP MODULE LABVIEW EPICS CPCI ACTIVEX

Citation Formats

Weber, Jonah M., and Chin, Michael. In-situ calibration: migrating control system IP module calibration from the bench to the storage ring. United States: N. p., 2002. Web.
Weber, Jonah M., & Chin, Michael. In-situ calibration: migrating control system IP module calibration from the bench to the storage ring. United States.
Weber, Jonah M., and Chin, Michael. Tue . "In-situ calibration: migrating control system IP module calibration from the bench to the storage ring". United States. https://www.osti.gov/servlets/purl/796102.
@article{osti_796102,
title = {In-situ calibration: migrating control system IP module calibration from the bench to the storage ring},
author = {Weber, Jonah M. and Chin, Michael},
abstractNote = {The Control System for the Advanced Light Source (ALS) at Lawrence Berkeley National Lab (LBNL) uses in-house designed IndustryPack(registered trademark) (IP) modules contained in compact PCI (cPCI) crates with 16-bit analog I/O to control instrumentation. To make the IP modules interchangeable, each module is calibrated for gain and offset compensation. We initially developed a method of verifying and calibrating the IP modules in a lab bench test environment using a PC with LabVIEW. The subsequent discovery that the ADCs have significant drift characteristics over periods of days of installed operation prompted development of an ''in-situ'' calibration process--one in which the IP modules can be calibrated without removing them from the cPCI crates in the storage ring. This paper discusses the original LabVIEW PC calibration and the migration to the proposed in-situ EPICS control system calibration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 30 00:00:00 EDT 2002},
month = {Tue Apr 30 00:00:00 EDT 2002}
}

Conference:
Other availability
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