Since my thermoelectric experiment is not a necessary for any class but just I applyed it, this two experiment are required by electrical and electronic classs.

electric motor control experiment

electric motor control experiment

This experiment, we try to control the motor to run intermittent，continuous and its self-locking circuit, and we also control the motor cycle the opposite directions. We spent one week hard time on this experiment. For we were having class that days, we just use spare time to do this experiment. One day, I remembered, we went out to class at 8:00am and got back at 10:00pm, and just have one hour have lunch and one hour have dinner.www.zhangpeng.info

In this experiment, we deal with three-phase AC which voltage reach 380V. The major equipment are two relay ( the two big box in figure two) and an over-current protection device (to prevent burn motor when current is too large)

make radio

the radio，the left side show radio circuit，speakers and power supply located right

Radio welding, installation and test experiment was performed at the time close to final examination. When we had finished all of our class, we have more time to do our best. But it seems easy to Zhangpeng, for he welded all electronic component in one day and got a perfect evaluating from his teacher.

Thermoelectric generation based on theory of seececk effect.

First, have a full view about our test system:

This system include referigeration system, heating module, temperature test and print-out instruments and some electrocircuits.

The small cycle in this picture show a multimeter, cost about RMB 3000. The big one show you a Agilent displaying meter, it’s used to gather electric current, voltage, temperature, etc. Also this Agilent instrument ‘s price is as high as RMB 60000. Also there is 8 thermalcouples cost about RMB 1000, referigeration system cost about RMB 4000. So you see, this experiment is expensive. However, all this cost are pay by our college.www.zhangpeng.info

The second picture will show you the thermoelectric generator.

This figure show three thermoelectric generators. TEPI represent thermoelectric generator. TECI represent thermoelectric refrigerating unit. Difference between these two equipment is just their usage. While TEPI is aimed at generate power, and TECI is used to cool small rooms. But when you change them use, such as like us, the two can output electic circuit.