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Title Description Author(s) Picture Download
Thin lens

This experiment is for determining the focal length of a thin lens. A light beam passes through a thin lens so that the rays converge at some point. Users can move the lens in this experiment and also a screen in which they get to see whether the rays are converging in a single spot or not. When they get a position for which the rays do focus in one point, then they measure the positions of both the lens and the screen and they can determine the focal length of the thin lens.

Luis de la Torre, Juan Pedro Sánchez



application/java-archive ejs_ThinLens.jar

Three tanks system (advanced)

This plant has three cylindrical deposits or tanks. The three tanks are connected between them in series and they count with their own unloading pipes. The liquid that leaves the tanks is collected in a big rectangular deposit placed at the bottom of these tanks. This same deposit serves as the source for the pumps that inject liquid to the tanks placed on the extremes. The advanced version of this lab allows uers to program their own controllers instead of just using the PID implemented in the basic version.

Héctor Vargas, Luis de la Torre, Jacobo Sáenz



application/java-archive ejs_ThreeTanksAdv.jar

Three tanks system (basic)

This plant has three cylindrical deposits or tanks. The three tanks are connected between them in series and they count with their own unloading pipes. The liquid that leaves the tanks is collected in a big rectangular deposit placed at the bottom of these tanks. This same deposit serves as the source for the pumps that inject liquid to the tanks placed on the extremes.

Héctor Vargas, Luis de la Torre



application/java-archive ejs_ThreeTanksBasic.jar

Two coupled electric drives

The device has two electric drives, coupled by means of a flexible belt. The belt passes through a pulley with a system that allows measuring its velocity and tension. The main control problem is to change the torque in the two motors in order to regulate the tension and the velocity of the belt. This can be done either individually or simultaneously.

Jacobo Sáenz, Luis de la Torre, Jesús Chacón



application/java-archive ejs_CoupledDrives.jar