JG6000V电机引接线,电感的主要特性参数 The main characteristic parameters of the inductor 1、电感量L及精度 1, inductance L and precision 电感量L表示线圈本身固有特性,与电流大小无关。除专门的电感线圈(色码电感)外,电感量一般不专门标注在线圈上,而以特定的名称标注。线圈电感量的大小,主要决定于线圈的直径、匝数及有无铁芯等。电感线圈的用途不同,所需的电感量也不同。例如,在高频电路中,线圈的电感量一般为0.1uH—100H。 The inductance L represents the inherent characteristics of the coil itself and has nothing to do with the current size. In addition to the special inductor (color code inductor), inductance is generally not specified on the coil, but is marked by a specific name. The inductance of the coil depends mainly on the diameter of the coil, the number of turns, and whether there is an iron core. The inductance of the inductor is different, and the inductance required is also different. For example, in high frequency circuits, the inductance of the coil is generally 0.1uH - 100H. 电感量的精度,即实际电感量与要求电感量间的误差,对它的要求视用途而定。对振荡线圈要求较高,为0.2-0.5%。对耦合线圈和高频扼流圈要求较低,允许10—15%。对于某些要求电感量精度很高的场合,一般只能在绕制后用仪器测试,通过调节靠近边沿的线匝间距离或线圈中的磁芯位置来实现。 The accuracy of inductance, that is, the error between the actual inductance and the required inductance, depends on its application. The demand for the oscillating coil is higher, 0.2-0.5%. The coupling coil and the high frequency choke require less 10 to 15%. For some occasions where the precision of inductance is very high, it is usually only tested by instrument after winding, and is realized by adjusting the interturn distance between the lines near the edge or the position of the core in the coil. 2、感抗XL 2, reactance XL 电感线圈对交流电流阻碍作用的大小称感抗XL,单位是欧姆。它与电感量L和交流电频率f的关系为XL=2πfL The size of the inductance coil's impediment to alternating current is called XL, which is ohmic. It is related to the inductance L and the alternating current frequency f as XL=2 PI fL. 3、品质因素Q 3, quality factor Q 线圈的品质因数JG6000V电机引接线 Quality factor of coils 品质因数Q用来表示线圈损耗的大小,高频线圈通常为50—300。对调谐回路线圈的Q值要求较高,用高Q值的线圈与电容组成的谐振电路有更好的谐振特性;用低Q值线圈与电容组成的谐振电路,其谐振特性不明显。对耦合线圈,要求可低一些,对高频扼流圈和低频扼流圈,则无要求。Q值的大小,影响回路的选择性、效率、滤波特性以及频率的稳定性。一般均希望Q值大,但提高线圈的Q值并不是一件容易的事,因此应根据实际使用场合、对线圈Q值提出适当的要求JG6000V电机引接线 The quality factor Q is used to represent the size of the coil loss, and the high frequency coil is usually 50 to 300. The Q value of the tuning loop coil is higher. The resonant circuit with the high Q value coil and the capacitance is better. The resonant circuit with the low Q coil and the capacitance is not obvious. For coupling coil, the requirement is lower, and the high frequency choke and low frequency choke are not required. The size of Q affects the selectivity, efficiency, filtering characteristics and frequency stability of the loop. It is generally hoped that the Q value is large, but raising the Q value of the coil is not an easy task. Therefore, appropriate requirements should be made according to the actual use occasion and the Q value of the coil.