What is lecher?

Lecher is a device used for measuring the electromagnetic radiation from different sources such as electronic devices, power lines, and appliances. It is an instrument that uses an antenna to detect the presence and strength of electromagnetic waves in a particular area. The Lecher antenna works by measuring the wavelength of the waves and calculating their frequency and energy levels.

The Lecher is named after Austrian physicist Ernst Lecher. His invention was first used to measure the frequency of radio waves in the early 1900s. Today, it has become a popular device for detecting and measuring the electromagnetic waves in various applications, including in the field of medicine, where it is used to diagnose diseases and monitor the health of patients.

The Lecher device is designed to be portable and easy to use, consisting of a metallic tube with a sliding probe, which can be extended or contracted as needed to measure different frequencies. It is commonly used by engineers, scientists, and other professionals to measure and analyze electromagnetic radiation levels in various environments.