Induktionsspolar

Induktionsspolar, also known as induction coils, are electrical transformers that produce high-voltage, low-current pulses. They are commonly used in ignition systems for internal combustion engines and in X-ray tubes. A basic induction coil consists of two coils of wire, a primary coil and a secondary coil, wound around a common iron core. The primary coil is connected to a power source, typically a battery, and a vibrating contact breaker. The secondary coil has many more turns of wire than the primary coil and is connected to the device requiring the high voltage.

When current flows through the primary coil, it creates a magnetic field in the iron core. The contact breaker rapidly interrupts the current flow to the primary coil, causing the magnetic field to collapse. This rapid change in magnetic flux induces a high voltage in the secondary coil due to electromagnetic induction. The ratio of the number of turns in the secondary coil to the primary coil determines the voltage amplification. This high voltage is then used to create a spark in a spark plug or to accelerate electrons in an X-ray tube. Early induction coils were crucial in the development of early automobiles and scientific instruments. Modern induction coils have evolved with improved efficiency and reliability, but the fundamental principle of operation remains the same. They are essential components in many technologies requiring high voltage generation from a low-voltage source.