A metal coil for us the original role is not big, we just regard it as a general metal, as for its use performance we do not understand, in life by relying on the power of the individual will not reflect a great role. The use of hollow coils is also in some specific areas, and its role is relatively
Self-adhesive Coil Division of the company in 2003, produces various types of adhesive induction coils, coils, coils, coil flat coils, stickers, and all other hollow coils, coils for IC card access control, solar swing coils, wireless chargers, mobile phone vibration motor coils, coil antenna coils,
The inductance calculated as follows: coil formulaImpedance (ohm) = 2 * 3.14159 * F (working frequency) * inductance (mH), setting required 360ohm impedance, and therefore: Inductance (mH) = impedance (ohm) ÷ (2 * 3.14159) ÷ F (operating frequency) = 360 ÷ (2 * 3.14159) ÷