DC Technology

Current and voltage are electrical quantities and do not have to be generated by sensors from the primary measured quantities. Electrical measurement technology is therefore one of the fundamentals of general electrical engineering. In this practical course, the measuring circuits are set up using the STE plug-in system.

Method

Equipment for student experiments and/or teacher demonstrations with non-hazardous low voltage. The experiments are carried out using a manual in printed or electronic form.

Target group

Vocational training in industry and students specialising in automation technology and mechatronics. The course offers the basics of electrical measurement technology.

Topics

More than 30 experiments can be carried out with this equipment. The topics range from the construction of simple circuits to Ohm's and Kirchhoff's laws and measuring the characteristics of non-linear resistors. This includes experiments on direct current measurement technology and the load behaviour of voltage sources. It is also possible to analyse capacitors and coils in a direct current circuit.

Simple circuits

• Structure of simple circuits
• Polarity of a direct voltage

Ohmic resistance

• Ohm's law
• Series connection of resistors
• Parallel connection of resistors
• Unloaded voltage divider
• Loaded voltage divider
• Wheatstone bridge

Non-linear resistors

• Incandescent lamp characteristic
• Voltage-dependent resistor VDR
• Resistor with positive temperature coefficient
• temperature coefficient PTC
• Resistor with negative temperature coefficient
• temperature coefficient NTC
• Light dependent resistor LDR
• Diode characteristic