I am in the process of making a full Wheatstone bridge. I was told to use 4 tee-rosette strain gauges (with axial and radial components in one gauge) to temperature correct the signals. I am interested in measuring amplitudes and phases of stress signals. I understand how to do this for 2 tee-rosette gauges but I am uncertain how to do it for 4 tee-rosette gauges. I guess you need to put them in a series but I am not sure how to wire it. I was also told that it should only take 4 wires out: voltage (V+ and V-) and measuring (m+ and m-).
How do I configure this? I tried something like this but I realized that it will not work because in a full-bridge two resistivities needs to increase and the other two decrease. This alas is not the case for the bridge I drew. Strain gauges are bonded equidistantly around a quasi-square.
@DKNguyen requested further information. The aluminum piece that I am supposed to bond the gauges too looks like this
in which the upper quasi-square is the top view and the bottom rectangle is the side view of the aluminum piece, while the red lines indicate the strain gauge position. It is basically a cylinder with trimmed sides to have flat surfaces to bond the strain gauges to. It is used to measure amplitude and phase of an axially applied sinusoidal wave. A1 and R1 denote axial and radial components of strain gauge number 1. The same notation applies for the remaining strain gauges (2, 3, and 4).