Question: P1.11 Automatic control of water level using a float level was used in the Middle East for a water clock [1, 11]. The water clock

P1.11 Automatic control of water level using a float level was used in the Middle East for a water clock

[1, 11]. The water clock (Figure P1.11) was used from sometime before Christ until the 17th century.

Discuss the operation of the water clock, and establish how the float provides a feedback control that maintains the accuracy of the clock. Sketch a block diagram of the feedback system.Float Orifice Time scale

Float Orifice Time scale

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