Detailed explanation of the principle of electronic level (inductive/capacitive) and high-precision detection application
I. Core principle: working difference between inductive and capacitive
The measurement principle of electronic level is mainly divided into two types:
Inductive: When the base tilts with the workpiece to be measured, the internal pendulum is displaced, causing the voltage of the induction coil to change, which is converted into the tilt angle reading through the voltage signal.
Capacitive: Works by using the gap change between the suspended circular pendulum (frictionless suspension state) and the electrodes on both sides - the capacitance on both sides is equal when horizontal, and the gap difference causes the capacitance value to change when tilted, which is then converted into angle deviation. It is stable and sensitive under the influence of gravity.
According to the measurement direction, it can also be divided into one-dimensional (single direction) and two-dimensional (X/Y axis bidirectional) electronic level to meet the detection needs of different scenarios.
2. High-precision application scenarios: from machine tools to flat plate detection
Precision machine tool calibration
Applicable to the bed surface level detection of high-precision equipment such as NC lathes, milling machines, cutting machines, three-dimensional measuring instruments, etc., with extremely high sensitivity - based on the 25-scale offset, it can achieve micron-level measurement within the limited tilt range to ensure the equipment processing accuracy.
Scraping plate detection
Provides a simple and flexible solution for flat plate flatness detection. The core is to match the bridge plate span according to the size of the plate. During the detection, it is necessary to ensure that the bridge plate moves continuously and connects to minimize the error and ensure that the measured value is close to the true accuracy.
3. Why choose an electronic level?
Compared with traditional levels, it realizes digital reading through electronic signal conversion, avoiding manual reading errors. Especially in scenarios such as precision manufacturing and equipment installation, it can efficiently complete the rapid detection of horizontality and verticality, and is a core tool for high-precision processing and calibration.