PROCEDURE: Figure 1 shows a schematic of the system. The block diagram of the level control system is given in Figure 2. 1. Identify all the blocks in the closed-loop control system of figure 2 and explain to which item in figure 1 they correspond. In figure 2,H
sp(s) is the Laplace transform of the liquid level set point (system input, i.e. the desired liquid level in tank) and H(s) is the Laplace transform of liquid level (system output, i.e. the actual liquid level in tank)