Item no.: P4010711 Principle Interactive learning and teaching system with one neurosimulator for up to 30 experiments covering nerve cells. Tasks use the nerve function model to study the following aspects of a nerve cell: intercellular potential, action potential, the different types of synapses. What you can learn about Comparison between low and high threshold and
Item no.: P4030211 Principle Tapping the Achilles tendon stretches the calf muscle and causes a reflex contraction in the muscle. This happens because the spindles sense the stretch and send an action potential to the motor neurons which then cause the muscle to contract. The amplitude of the muscle action potential is higher with tensed arm musculature
Item no.: P4010111 Principle Earthworms have a median giant nerve fibre, which reacts to stimulation at the front end, and two lateral giant fibres, which can be stimulated at the rear end. The experiment covers the following topics: the course of a biphasic action potential over time, estimation of the conduction velocity and coding of
Item no.: P2530111 Principle The resistivity and Hall voltage of a rectangular germanium sample are measured as a function of temperature and magnetic field. The band spacing, the specific conductivity, the type of charge carrier and the mobility of the charge carriers are determined from the measurements. Tasks The Hall voltage is measured at room
Item no.: P2440611 Principle The current and voltage of parallel and series-tuned circuits are investigated as a function of frequency. Q-factor and band-width are determined. Tasks Determination of the frequency performance of a Series-tuned circuit for voltage resonance without damping resistor, current resonance without damping resistor, current resonance with damping resistor. parallel-tuned circuit for current
Item no.: P2360415 Principle The Stirling engine is submitted to a load by means of an adjustable torquemeter, or by a coupled generator. Rotation frequency and temperature changes of the Stirling engine are observed. Effective mechanical energy and power, as well as effective electrical power, are assessed as a function of rotation frequency. The amount