ENGINEERING DATA ABOUT MEASUREMENT OF CONCRETE THERMAL DEFORMATION WITH STRAIN GAUGE

Intra-arterial Pressure Measurement with Strain Gauge and Amplifier *

The purpose of this paper is briefly to describe intra-arterial pressure recording by means of a strain gauge pressure transducert and amplifiers. The use of resistance wire strain gauges for blood pressure recording with galvanometers has already been described.1"8 The use of the strain gauge with electronic amplification as a plethysmograph has also been described.2 Since alternating input cu...

EFFICIENCY MEASUREMENT OF NDEA WITH INTERVAL DATA

Data envelopment analysis (DEA) is a non-parametric technique for evaluation of relative efficiency of decision making units described by multiple inputs and outputs. It is based on solving linear programming problems. Since 1978 when basic DEA model was introduced many its modifications were formulated. Among them are two or multi-stage models with serial or parallel structure often called net...

Field Measurement of Vertical Strain in Asphalt Concrete

Recently developed Mechanistic-Empirical Pavement Design Guide (MEPDG) determines the probable total rutting by summing up the deformations of all layers of the trial pavement. If all distresses outcomes including rutting are within the specification the trial section is designed for construction. Therefore, vertical deformation (or strain) needs to be measured to validate the MEPDG for local c...

Investigations about the Accuracy of Target Measurement for Deformation Monitoring

Experience in applications of TLS for deformation monitoring of concrete structures have shown the need of further exhaustive study about the quality of retro-reflecting target measurement. Indeed, this factor is highly influencing the georeferencing that is of primary importance to compare scans acquired at different epochs. Here some tests carried out by means of a RIEGL LMS-Z420i laser scann...

Direct Torque Measurement of Hermetic Rotary Compressors Using Strain Gauge