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Title Automated servo controlled calorimetry
Creator/Author Wetzel, J.R.
Publication Date1984 Jan 01
OSTI IdentifierOSTI ID: 6449314; DE85002527
Report Number(s)MLM-3198(OP);CONF-841007-22
DOE Contract NumberAC04-76DP00053
Resource TypeConference
Specific TypeTechnical Report
Resource RelationNuclear science symposium; 31 Oct 1984; Orlando, FL, USA; Portions are illegible in microfiche products
Research OrgMonsanto Research Corp., Miamisburg, OH (USA). Mound
Subject440300 -- Miscellaneous Instruments-- (-1989); ;CALORIMETERS-- COMPUTERIZED CONTROL SYSTEMS; ACCURACY;ELECTRIC BRIDGES;NONDESTRUCTIVE ANALYSIS
Related SubjectCHEMICAL ANALYSIS;CONTROL SYSTEMS;ELECTRICAL EQUIPMENT;EQUIPMENT;MEASURING INSTRUMENTS
Description/Abstract A method of operating a calorimeter is called the servo controlled method.^An internal heater is driven by a controlled voltage source to produce a constant internal temperature.^The heater power is controlled by a digital computer program that uses as one of its inputs the bridge potential.^The heater power can be calculated by multiplying the heater current by the heater voltage.^A bridge potential can then be determined that will produce the desired internal power level.^When a sample is placed in the calorimeter the servo system reduces the heater power to maintain the set point bridge potential.^There will be four calorimeters in the system - two for large sizes and two for small sizes.^They will be servo controlled using a DEC Micro-11 computer with a IEEE-488 interface buss.^(LEW)
Country of PublicationUnited States
LanguageEnglish
FormatPages: 4
AvailabilityNTIS, PC A02/MF A01; 1.
System Entry Date2001 May 13

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