This paper describes a new signal-conditioning technique for measuring strain and temperature which uses fewer connecting wires than conventional techniques. Simultaneous measurement of temperature and strain has been achieved by using thermocouple wire to connect strain gages to signal conditioning. This signal conditioning uses a new method for demultiplexing sampled analog signals and the An...

A broad range of investigations has been carried out to suggest that the facet joint capsule is a source of neck pain and the pain may arise from large strain in the cervical facet capsule that will cause pain receptors to fire. So far, no direct methods to in vivo test the cervical facet capsule strain during rearend crashes have been known. To solve this methodology problem, a special liquid ...

Strain gage rosettes are used often in engineering practice to determine strain states at specific points on a structure. Figure 1 illustrates three commonly used strain gage rosette configurations. Each of these configurations is designed with a specific task in mind. The far right rosette in Figure 1 is referred to as a tee rosette. Tee rosettes are two element rosettes and should only be use...

PURPOSE Previous biomechanical studies have estimated the strains of bone and bone substitutes using strain gages. However, applying strain gages to biological samples can be difficult, and data collection is limited to a small area under the strain gage. The purpose of this study was to compare digital image correlation (DIC) strain measurements to those obtained from strain gages in order to ...

The need for calibration arises frequently in the use of strain gage instrumentation. Periodic calibration is required, of course, to assure the accuracy and/or linearity of the instrument itself. More often, calibration is necessary to scale the instrument sensitivity (by adjusting gage factor or gain) in order that the registered output correspond conveniently and accurately to some predeterm...