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

The standard inductor is a precision instrument (FQD19N10TM) used for measuring inductance values, capable of providing highly accurate 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, usage, and development history.diode

I. Structure:

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

II. Characteristics:

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

2. Wide frequency range: Standard inductors typically operate within an extremely broad frequency range, capable of measurements from several Hz to several MHz.

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

4. Adjustability: Standard inductors typically feature a function to adjust their inductance value as needed.diode