DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
5E50.00 | Thermoelectricity | | |
5E50.10 | thermocouple | PIRA 200 | Two iron-copper junctions, one in ice and the other in a flame, are connected to a galvanometer. |
5E50.10 | thermocouple | 5E50.10 | Attach a voltmeter to the iron wires of two copper-iron junctions while they are differentially heated. |
5E50.10 | thermocouple | Et-1 | Two iron-copper junctions, one in ice and the other in a flame, are connected to a galvanometer. |
5E50.10 | thermocouple | Disc 16-20 | Place a twisted wire thermocouple in a flame and observe the current on a lecture table galvanometer. |
5E50.11 | thermocouples | H-1a | Heating two metals causes a deflection on a galvanometer. |
5E50.12 | thermoelectric generator | AJP 29(4),273 | Review of a commercial thermoelectric generator made from 150 constantan/nickel-molybdenum thermocouples in series. |
5E50.15 | Seebeck effect | E-179 | The thermoelectric effect of copper-iron junctions. |
5E50.17 | Seebeck and Peltier effects | E-181 | Send current through a copper-iron-copper circuit for several seconds and immediately disconnect and switch to a galvanometer. |
5E50.18 | copper-iron junctions ring | 30-5.3 | Sixty copper-iron junctions in series are arrayed in a ring heated simultaneously with a Bunsen burner producing 90 mA. |
5E50.19 | thermoelectric compass | E-183 | Bars
of copper and iron are joined to form a case for a compass needle. The needle
will indicate the direction of the current as one or the other junction is
heated. |
5E50.19 | thermocouple coil magnet | E-6a.1 | Heat a thermocouple loop and the current produces a magnetic field that can be detected by a compass needle. |
5E50.20 | thermoelectric effect in a wire | E-184 | Show that a piece of soft iron wire connected to a galvanometer has little thermoelectric effect until the wire is kinked. |
5E50.25 | Thompson effect | E-185 | A flame moved along a long wire will "push ahead" current. |
5E50.30 | thermoelectric magnet | PIRA 500 | |
5E50.30 | thermoelectric magnet | 5E50.30 | Heat one side of a heavy copper loop closed by an unknown metal to generate thermoelectricity for an electromagnet. |
5E50.30 | thermoelectric magnet | Et-3 | A ring
of copper shorted by iron forms a thermocouple that powers an electromagnet
when one end is in water and the other is heated in a flame. |
5E50.30 | thermoelectric magnet | E-182 | One end
of a heavy copper bar bent into a loop and closed with a copper-nickel alloy
is heated, the other cooled. An electromagnet made with a soft iron shell
can support 200 lbs. Picture. |
5E50.30 | thermocouple magnet | H-1b | A Bunsen burner heats one side of a thermocouple magnet supporting over 10 Kg. |
5E50.30 | thermoelectric magnet | Disc 16-18 | Heat
and cool opposite sides of a large thermocouple. Suspend a large weight from
an electromagnet powered by the thermocouple current. |
5E50.36 | 3M Aztec lamp | Et-4 | A thermocouple is built into a kerosene lamp. |
5E50.60 | Peltier effect | PIRA 1000 | |
5E50.60 | thermoelectric cooler | Et-2 | A Peltier device is used to cool a drop of water. |
5E50.60 | thermoelectric heat pump | Disc 16-19 | Mount aluminum blocks with digital thermometers on either side of a Peltier device. Run the current both ways. |
5E50.61 | Peltier effect | E-180 | Directions for making an antimony-bismuth junction and an apparatus to show heating and cooling. |
5E50.62 | Peltier effect | 30-5.1 | Directions for building a Peltier effect device. |
5E50.90 | pyroelectric crystals | 30-5.2 | Demonstrate the temperature effect on the polarization of pyroelectric crystals. Picture. |
5E50.93 | domains of electric polarization | 30-6.6 | Tiny BaTiO3 crystals are heated on a microscope slide until the domains disappear. |