E200 MAG welding machine power throttle motor LRS775S LRS-775S

The throttle motor of the E200 MAG welding machine's power refueling motor is the LRS775S (LRS-775S).

A rotary position sensor is a device used to measure the rotational position or angle of an object. It detects and measures the rotation angle of an object relative to a reference point and converts the position information into a usable output signal. In excavator operator monitors, rotary position sensors (such as Trimble's RS400) are typically used to achieve precise slope control.

Core Functions and Working Principles

The rotary position sensor converts mechanical rotational motion into electrical signals (such as CAN bus signals) through internal encoders or potentiometers, and transmits this information to the control computer for processing.

Encoder: Converts rotation angle data into digital signals, suitable for high-precision measurement.

Polypotentiometer Sensor: Outputs an analog voltage signal through resistance changes; simple in structure, but resolution is affected by mechanical wear.

Applications in Excavators

In excavator monitors, rotary position sensors, in conjunction with tilt sensors, are used to monitor the rotation angle of the robotic arm and the tilt state of the machine body, thereby achieving automated slope control and balance adjustment. These types of sensors need to possess high precision, anti-interference capabilities, and adaptability to outdoor environments.

Technology Development Trends

New rotary position sensors (such as the Nanochip MT911x/MT912x series) employ magnetic induction technology, featuring high linearity (±1.5%), low power consumption (quiescent current <2mA), and miniaturized packaging, making them more suitable for complex industrial scenarios.