What is a standard inductor, the structure, characteristics, working principle, applications, testing, installation, usage, and development history of a standard inductor 1

The standard inductor is a precision instrument (FQD19N10TM) used for measuring inductance values, capable of providing highly accurate inductance readings. It is commonly employed for calibrating and verifying the accuracy of other inductors. Below is an overview of the standard inductor's structure, characteristics, working principles, applications, testing, installation and usage, as well as its developmental history.diode

1. Structure:

A standard inductor typically consists of a coil, which is usually wound with copper wire and then secured onto a non-magnetic core. The core is typically made of quartz or ceramic to ensure the coil's stability and precision. The length of the coil and the winding method of the standard inductor are designed according to specific inductance values.diode

II. Features:

1. High Precision: Standard inductors can provide very accurate inductance values, typically with extremely high precision.diode

2. Wide Frequency Range: Standard inductors typically operate over an extremely wide frequency range, capable of measurements from a few Hz to several MHz.

3. Stability: Standard inductors typically exhibit high stability, capable of maintaining accurate inductance values over extended periods.diode

4. Adjustability: Standard inductors typically feature a function for adjustable inductance values, allowing them to be modified as needed.