Substantiating Army Automated Systems Cost Data
Author(s): Loebe Julie
Abstract/Introduction:
In my paper entitled Compamtive Data on Cost of Calibration, presented at the Eighth Measurement Science Conference, a cost analysis form (see P4 of the paper) was used to compute total calibration cost per job for seven different calibration strategies. As shown in the chart below (from P6 of the paper) computed calibration cost/job ranged from 21 to 243.73.
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Document ID:
DCD4DD87
Advantages Of Microprocessor-Based Instruments
Author(s): Norbert R. Laengrich
Abstract/Introduction:
This paper presents a discussion of the benefits of microprocessor-based instrumentation to calibration laboratory personnel. The impact of fl design on calibration concepts and techniques is discussed. New measurement concepts created by #-based equipment are contrasted to older methods and the evolution of operational concepts is outlined.
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Document ID:
D716518A
Microprocessors In Specialized Gaging Applications
Author(s): Ken Roydston
Abstract/Introduction:
Microprocessors may be successfully employed in one-of-a-kind or very limited productinn,specialized, automated gaging applications. The design and development of such systems will differ substantially from the design and development of moderate to high production microprocessor oriented systems. While the decision to use a microprocessor may be justified solely on the economic considerations of replacing hardwired logic, the microprocessors decision making ability may also be incorporated intimately into the measurement process to accomplish tasks otherwise very difficult or prohibitively expensive.
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Document ID:
73640DD0
The Measurement And Quantization Of Vibration
Author(s): Wayne Tustin
Abstract/Introduction:
This paper reviews the measurement of vibration, along with data reduction into engineering units. Applications include measurement system calibration, investigation of in-service conditions, investigation of handling and transportation, and measurement of environmental vibration tests. Various transducer types are considered, along with various readout instruments. The need for spectral decomposition (via Fourier analysis) and display is shown. Advantages of digital analysis over analog analysis are evaluated.
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Document ID:
0A24C81A
Development Of A Low Flow Generator AN0 Calibrator As A Gas Or Liquid Flow Measurement Standard
Author(s): John L. Ountz, C. G. Kullmann
Abstract/Introduction:
For some time, a need has existed in the Naval Air Calibration Program for a standard to calibrate low range laminar flow elements and low flow variable area liquid meters. The lack of availability of a suitable standard or standards in these areas precipitated the development of the low flow calibrator,
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Document ID:
A2CB6A58
Modular Instquctlon For Metrology Training
Author(s): Arthur J. Plourde
Abstract/Introduction:
Modular Instruction for Metrology Training (MIMT) is a new multimedia training program concept for meeting diverse metrology and calibration training requirements including certified training. The MIMT concept defines basic learning objectives for specific job tasks and allows trainees to achieve those objectives in minimum time utilizing minimum resources.
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Document ID:
36DA1ACD
A Sampling Voltmeter For Low Frequency Measurmnent
Author(s): F. Field
Abstract/Introduction:
Conrcial voltmeters presently available are generally not capable of measuring with high accuracy the true RMS value of voltages at frequencies below 10 Hz. A new instrlnent has been developed and tested which is capable of measuring the true RMS voltage of %OOimately sinusoidal waveforms from 2 mV to 10 V with frequencies between 0.1 HZ to providk This new instrument is designed to have a very shortsettllng time as well as measurements of the RMS value of the ac component of the signal, the frequency, and the harmonic distortion of the signal, features which are not available OR previous instruments.
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Document ID:
B772E50E
Transmission Characteristics Of Optical Fibers
Author(s): Douglas L. Franzen
Abstract/Introduction:
The transmission of information by light guided through fibers of glass or plastic is a rapidly advancing technology. Performance of optical fiber communication links is significant enough to justify the replacement of mm-e conventional systems in many applications. The current use of multimode fibers presents some interesting problems in terms of measurements. A brief introduction to optical fibers will be given and the measurement of attenuation and bandwidth discussed. Future directions the technology may take will be indicated.
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Document ID:
5EDF2052
Applications Of Superconductivity
Author(s): T. Van Duzer
Abstract/Introduction:
This talk will concentrate on certain low-power applications of superconductivity which are based on the Josephson effects. some tutorial background on the Josephson effects will be given and the physical configurations of Josephson junctions will be shown. Precise standards and extremely sensitive magnetometers and millimeter-wave detectors will be discussed.
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Document ID:
02FEA570
Superconducting Digital Electronics*
Author(s): Richard L. Rautz
Abstract/Introduction:
The Josephson junction is a superconducting electronic device which, because it combines high speed, low power dissipation and small size, is suitable for making very fast, highly complex digital circuits. The fastest Josephson logic reported to date has a delay time of a few tens of picoseconds per gate and a power dissipation of a few microwatts per gate. With the superconducting microcircuit technology presently being developed, several thousand gates per chip are now possible. Such packing densities contrast with those achievable with semiconducting electronics, where power dissipation limits the number of gates to a few tens per chip. Superconducting electronics thus promises a new generation of digital instruments which might include analog-to-digital converters and real-time digital filters operating at higher speeds than previously possible.
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Document ID:
8D143432
The Developing National Measurement System For Length In The Micrometer And Sub-Micrometer Range
Author(s): Russell D. Young
Abstract/Introduction:
Recent technological shifts toward microcircuits and other microtechnologies have generated unmet demands for length measurements in the micrometer and submicrometer range. The National Bureau of Standards is developing the measurement techniques and physical standards to provide the basis for extending the National Measurement System for Length to the micrometer range.
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Document ID:
53F0440C
Laboratoarlyi Tomtecda Libratiol System( Lacs) Utilization And Status Report
Author(s): K. K. Magnant
Abstract/Introduction:
THIS REPORT DETAILS THE EFFORTS OF THE USAMCC AND THE LACS USER ORGANIZATION FOR THE LACS PROGRAM. A HISTORY OF THE LACS DEVELOPMENT AND FIELDING IS PRESENTED WITH A DESCRIPTION OF THE SYSTEM.
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Document ID:
5E7FA32A
Instrument Performancespecification Problem Or Qa?
Author(s): Clyde Moss
Abstract/Introduction:
IN THINKING BACK THROUGH THE YEARS, I CAN RECALL MISSILE SYSTEM CONTRACTORSS TRESSINGA CCURACIESA ND RELIABILITYO F THEIR SUPPORT EQUIPMENTI N ORDER TO INSURE THAT SYSTEM PERFORMANCEW OULD MEET THEIR CONTRACT CRITERIA, ONE SUCH EXAMPLE WAS THE INS ISTENCE ON THE PART OF A MISSILE CONTRACTOR THAT SIMPSON 260 MULTIMETERSH AD TO BE CALIBRATEDE VERY NINETY DAYS OR ELSE HIS INSTALLATIOENF FORTS WOULD BE QUESTIONABLEA ND HE WOULD NOT STAND BEHIND THEM, DURING THESE SAME TIME PERIODS INSTRUMENTR EPRESENTATIVES AND MANUFACTURERWSE RE COMPLAININGA BOUT COPY CONTRACTS AND LOW BIDDER AWARDS TO LOFT MANUFACTURERS, THE SITUATIONH AS CHANGEDT HROUGH THE YEARS, PARTICULARLYW ITHIN THE METROLOGAYN D CALIBRA TION (METCAL)P ROGRAM
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Document ID:
B5565359
Defective-On-Arrival Products: Product Supports Role
Author(s): Jim Detrick
Abstract/Introduction:
THERE IS A COMMUNICATIONS GAP BETWEEN THE CUSTOMERS EXPECTATIONS OF A NEW MEASUREMENT INSTRUMENTS PERFORMANCE AND THE MANUFACTURERS PERCEPTION OF CUSTOMER SATISFACTION WITH IT, THE MANUFACTURERS PERCEPTION IS OFTEN THE REPORTED WARRANTY REPAIRS ON DEFECTIVE-ON-ARRIVALM PRODUCTS, D,O,A,s. FOR US, D,O,A,s ARE CLASSIFIED AS ANY WARRANTY REPAIRS ON A PRODUCT THAT HAS FAILED WITHIN 45 DAYS AFTER SHIPMENT (I,E,, EARLY FAILURES), THIS WARRANTY REPAIR DATA ON OUR PRODUCTS INDICATES THAT 2-52 ARE EARLY FAILURES, WE CLASSIFY A FAILURE AS ANY TYPE OF DEFECT RESULTING IN A WARRANTY REPORT,
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Document ID:
7C298BD2
Instrument Performance: Specification Problem Or Qa?
Author(s): Dan Harper
Abstract/Introduction:
SATISFACTORY PRODUCT PERFORMANCE ON RECEIPT BY THE CUSTOMER, AND THROUGHOUT THE WARRANTY PERIOD, IS A COMMON GOAL OF ALL MANUFACTURERS.
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Document ID:
222EA2DB
Product Reliability
Author(s): Howard E. Mcelroy
Abstract/Introduction:
A few years ago the terms low-costand high-performance were mutually exclusive in the electronics industry. A piece of electronic equipment was either low-cost, low performance or high-cost, high performance but never cheap and good too. Today thats changed. Our technology has reached the point where thedream of producing low-priced, quality equipment is within our reach. However, since the concept is traditionally contradictory, production of such products requires careful planning to ensure manufacturing simplicity without sacrificing product reliability.
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Document ID:
78CBE188
Quality Of Precision Measurement Equipment As Presented At The Seventh Annual Measurement Science Conference
Author(s): Leobe Julie
Abstract/Introduction:
THIS AUTHOR FREELY ADMITS THAT HE HAS AN AXE TO GRIND. SINCE 1954 HE HAS CONCENTRATED ALL OF HIS SCIENTIFIC EFFORTS ON ADVANCING THE TECHNOLOGY OF US METROLOGY. NOW, 24 YEARS AND 48 METROLOGY IMPROVEMENT PATENTS AFTER HE FIRST BEGAN, HE STILL BELIEVES IN THE OFT-STATED FINE PRINCIPLES OF PRECISION MEASUREMENT, AND IN THE HIGH IDEALS AND HIGH STANDARDS OF QUALITY PROFESSED BY THE STANDARDS AND CALIBRATION LABORATORY.
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Document ID:
A2E71626
End-To-End Metrology Cost Avoidance
Author(s): Don Tobey
Abstract/Introduction:
recent technological advances in weapons system design have placed a major emphasis on the role of aircract support. Sophisticated avionic subsystems require diagnostic testing, troubleshooting techniques, automatic self-test, calibration procedures, and microprocessor data handling to reduce turnaround time and sustain high levels of operational readiness. In the wake of these developments has come the problems typically associated with rapid advances in technology: Spiraling cost, proliferation, and divergent philosophies of Ground Support Equipment (GSE).
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Document ID:
16D671B1
Comparative Data On Cost Of Calibration
Author(s): Loebe Julie
Abstract/Introduction:
The author has collected data from many sources in industry and government which shows a surprisingly wide range of calibration performance and cost effectiveness. This data clearly indicates the effects of different strategies on job quality and cost and should be of help to every laboratory in improving its performance.
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Document ID:
161C2610
Accuracy And Cost-Effective Concepts Of Small, AUTOMAl?D MICRO/MILLIMETER-WAVE Measurement Systems
Author(s): T. Mukaihata
Abstract/Introduction:
In recent years numerous significant advancements in computer and instrumentation technology have greatly reduced the cost and complexity of laboratory automation. The impact of these advancements and their application in a micro/millimeter-wave calibration laboratory are discussed. The flexibility and cost-effectiveness in adapting a few basic automated test instruments (controlled by a desk-top computer) to diverse test configurations are analyzed. Data comparison between automated systems and NBS calibrations are also presented.
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Document ID:
3D859F01
A Review Of Receiver Noise Parameter Measurement Techniques And Equipment
Author(s): William E. Pastor
Abstract/Introduction:
The noise performance of a receiving system is an inherent limitation on its ability to extract information from a remotely located source therefore, the measurement and characterizaticnof receiver noise, and the noise performance of the components and subassembIies making up the receiver, assumes considerable significance in virtually all areas utilizing receiver technology - communications, telemetry, radar, ELINT, etc.
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Document ID:
EF898152
Rf Communications Test Equipment
Author(s): Kenneth Harrison
Abstract/Introduction:
Modulation meters have many applications, the most common being the measurement of Frequency Modulation and Amplitude Modulation. The conventional method has been to use a manually tunable modulation meter that has to be set to a precise carrier frequency plus the IF frequency. The level then has to be set and the modulation meter finely retuned before any measurements are made. This can be tedious particularly when several frequencies have to be covered such as testing a signal generator or a multi channel radio. This paper describes the use of sampling techniques to achieve automatic measurement of both FM and AM.
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Document ID:
9B8E6191
Precise Calibration Nigh Frequency Voltage Sources
Author(s): Ramesh Goyal
Abstract/Introduction:
The problems associated with precise calibration of hiqh frequency voltages over a wide range are discussed. Based on ac-dc differences, an accurate voltaqe measurement technique is extended down to low levels. A method that provides ease of production testinq of the Fluke ?lodel 5lOOA Calibrator is described.
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Document ID:
50BC5AC9
A Bridge Circuit For The Dynamic Characterization Of SAMPLE/HOLD Amplifiers
Author(s): T. m. Souders
Abstract/Introduction:
A transformer bridge technique is described for measuring the dynamic performance of sample/hold amplifiers. Of particular importance to simultaneous data acquisition, the technique accurately measures dynamic gain errors, signal delay, aperture time delay and jitter, and acquisition time. The bridge is selfcalibrating, and the voltage and time resolution are primarily limited only by the oscilloscope which serves as detector.
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Document ID:
0CA4A5E4