CRDConcept: measurement and instrumentation

"strain gage load cells dominate the weighing industry. Pneumatic load cells are sometimes used where intrinsic safety and hygiene are desired, and hydraulic load cells are considered in remote locations, Strain gage load cells offer accuracies from within 0.03% to 0.25% full scale and are suitable for almost all industrial applications." -- source

Interface Training Manual and Load Cell Theory provides good info on theory, and error analysis.

Strain gauge

Electronic weighing principle

Load cell design

Microscope for nanotech

A scanning tunneling microscope (STM) places an atomically sharp point with a small voltage potential near a sample material and, by measuring the number of electrons that jump across the gap–physicists use the term "tunneling"–creates an accurate representation of the structure. Atoms then can be moved by electrical repulsion or attraction. An atomic force microscope (AFM) is a variation on the STM theme. The small upward and downward movements of the tip needed to maintain a constant force of contact on a surface is used to produce images. A scanning probe microscope (SPM) operating in a "tapping mode" can record variations of friction as a tip is dragged across a sample. It can also nudge individual atoms from place to place. (Popular Mechanics

Tidbits

: OMEGA's Transactions in Measurement & Control series by Omega

A Historical Perspective by Omega.

Instruments for Measuring Air Quality part 1 part 2 part 3

Tools to Know for Home Diagnostics by Stewart Selman

Glossary

Web Links (4):

Notes

CE and CEC by Kevin Altria: Basic information about Capillary Electrophoresis (CE) and Capillary Electrochromatography (CEC)
Engineering Fundamentals: "to create an online destination for the engineering community, where working professionals can quickly find a variety of information to aid in the solution of complex design problems. "
Jersey Balances: "supplier of Analytical, Precision, Top-Loading, Moisture & Industrial Balances and scales - for weighing to the nearest 0.00001g up to several hundred metric tons"
OMEGA's Transactions in Measurement & Control series: "to provide the technical information to help meet your measurement and control requirements. as a practical thesis and as a technical reference series for everyday users of instrumentation and controls, with information on a different measurement and control technology topic."

Related References (37)

portable façade unit for teseting: A configurable smart facade unit for on-site calibration and control optimization, by Messadi, T. and Augenbroe G., 2001
annex 14: condensation and energy: A prarmeteric study of wall moisture contents using a revised variable indoor relative humidity version of the "MOIST" transient heat and moisture transfer model, by Tsongas, G., Burch, D., Roos, C., and Cunningham, M. J., 1995
annex 14: condensation and energy: Annex XIV: Condensation and Energy. Volume 2: Guidelines & Practice and Volume 3: Catalog of Material Properties, by IEA, 1990
--------: Application of digital-image-based models to microstructure, transport properties, and degradation of cement-based materials, by Bentz, D. P., Garboczi, E. J. and Martys, N. S., 1996
temperature and RH: Assembly and Calibration of a Compact Temperature and Relative Humidity Sensor, by Maref, W., Tardiff, Y. and Booth, D. G., 2002
video taping: Characterization of particulate emissions from occupant activities in offices , by Luoma, M. and Batterman, S. A., 2001
spore sampling: Collection of bioaerosol particles by impaction: effect of fungal spore agglomeration and bounce, by Trunov, M., Trakumas, S., Willeke, K., Grinshpun, S. A. and Reponen, T., 2001
aerodynamic particle size spectrometer: Collection of bioaerosol particles by impaction: effect of fungal spore agglomeration and bounce, by Trunov, M., Trakumas, S., Willeke, K., Grinshpun, S. A. and Reponen, T., 2001
--------: Convective processes in loose-fill attic insulation—metering equipment, by Lawton, M. D., 1998
Cali moisture meter: D4444-92e1 standard test methods for use and calibration of hand-held moisture meters, by ASTM, 1998
gas chromatography-mass spectrometry: Determination of microbial colonisation in water-damaged buildings using chemical marker analysis by gas chromatography-mass spectrometry, by Szponar, B. and Larsson, L., 2000
Production of aerosols from bulk dry powders: Dry powder aerosol production using modified pitt-3 type acoustic generators, by Johnson, D., Alston, L. and Esmen, N., 2002
--------: E74-04 standard practice of calibration of force-measuring instruments for verifying the force indication of testing machines, by ASTM, 2005
GC: Evaluation of adsorbents for sampling and quantitative analysis of microbial volatiles using thermal desorption-gas chromatography , by Sunessona, A., Nilssona, C. and Anderssona, B., 1995
Evaluation of indoor fungal exposure: Evaluation of indoor fungal exposure, by Pasanen, A-L, 2000
X-ray microtomography: Experimental methods for engineers, by Holman, J. P. and Gajda, W. J., 1984
infrared sensor: F1249-90(1995) Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor, by ASTM, 1995
--------: Inferring ventilation and moisture release rates from field psychrometric data only using system identification techniques, by Cunningham, M. J., 2001
using isotopes to trace moisture movement in buidling: Isotopic tracing of moisture in buildings, by Gudmundsson, K., 2001
electromagnetic, Microwave Aquametry: Material properties, measuring methods, applications, by Kupfer, K., 1900
Capillary Electrophoresis: Measurement of biocides in metal working fluids and in workplace air using capillary electrophoresis, by Breuer, D., 2002
VOC: Measurement of diffusion coefficients of VOCs for building materials: review and development of a calculation procedure , by Haghighat, F., Lee, C. and Ghaly, W. S., 2002
--------: Measuring air leakage characteristics with flexible double air chambers, by Fazio, P., Rao, J., and Ge, H., Mao, Q., Rao, J. and Fazio, P., Mao, Q., Rao, J. and Fazio, P., 2002
good description of temperature, rh, MC, wetness, heat flux: Monitoring of the building envelope of a heritage house: a case study, by Saïd, M. N. A., W. C. Brown, C. J. Shirtliffe and A. H. P. Maurenbrecher, 1999
computer-aided image analysis: Morphological recognition of fungal spore germination by a computer-aided image analysis and its application to antifungal activity evaluation, by Oh, K., Chen, Y., Matsuoka, H., Yamamoto, A. and Kurata, H., 1996
--------: Passive sampling, by Gorecki, T. and Namiesnik, J., 2002
optical spectro pluviometer for rain drop size distribution: Performance of an optical spectro pluviometer in measuring basic rain erosivity characteristics, by Salles, C. and Poesen, J., 1999
bioaerosol samplers: Performance of bioaerosol samplers: collection characteristics and sampler design considerations, by Nevalainen, A., Pastuszka, J., Liebhaber, F. and Willeke, K., 1992
colour image analysis: Quantitative spore colour measurement using colour image analysis, by Yule, B., Roberts, S., Marshall, J. E. A. and Milton, J. A., 1998
airflow: Review of airflow measurement techniques, by Mcwilliams, J., 2002
non destructive test method: Review of non-destructive test methods for assessing strength, serviceability and deterioration in buildings, by IRC, 1996
MVOC: Sampling and analysis of microbial volatile organic compounds (MVOCs), by Campbell, J., Casteel, C., Chen, K. and Tuday, M., 2002
hot sphere anemometer: Simulation and measurement of the stationary and transient characteristics of the hot sphere anemometer, by Loomans, M. and A. Schijndel, 2002
Spectroscopic evaluation and inspection: Spectroscopic evaluation and inspection of environmentally friendly wood protection systems, by Jernberg, P., Eriksson, B., and Abrahamsson, J., 1996
Atomic force microscopy (AFM): Surface properties of microbial cells probed at the nanometre scale with atomic force microscopy, by Boonaert, C. J. P., Rouxhet, P. G. and Dufrene, Y. F., 2000
--------: The New CMI (Czech Metrology Institute) Method of Metrological Ensure for Accurate Low Mass Flow, by Tesar, J., Prazak, D. and Krajicek, Z., 2001
--------: The optical spectropluviometer revisited , by Salles, C., Creutin, J. and Sempere-Torres, D., 1998

CRDBER Home, at Building Envelope Performance Laboratory, CBS, BCE, Concordia, March 2005