Search coil by computer to determine displacement in multiple dimensions. Additionally, a second search coil can be added to measure torsional rotation. A more crude search coil also called exploring coil is also used in laboratory experiments in schools to measure the magnetic field in a certain region of space. In this case the search coil consists of a simple wire coil or solenoid connected to a sensitive ammeter or galvanometer. The coil is placed in the magnetic field to be measured and quickly withdrawn to a region of space with a negligible magnetic field. As the search coil moves the magnetic
High-Intensity Focused Electromagnetic Field muscle contractions due to the action potential. The exposure of muscles to these contractions leads to muscle strengthening. In aesthetic medicine, HIFEM is used as a non-invasive body contouring treatment for abdomen and buttocks. The same technology is used in urology and gynecology to treat urinary incontinence through strengthening of the pelvic floor muscles. A pulse of electric current flowing through a wire coil generates a rapidly changing magnetic field. The changing magnetic field induces a secondary electric current in the nearby tissue. When applied on peripheral level the secondary electrical current depolarizes neural membranes of underlying neurons. Motor neurons