DF9011 Pro rotational speed meter is used to measure the speed of steam turbines, and is a commonly used instrument for power plant users. Yoyik introduces its working method, hoping to be helpful to you.

Speed Sensors: DF9011 Pro rotational speed meter typically use magnetic speed sensors or Hall effect sensors to detect rotor motion. These sensors are installed on the turbine rotor or rotor shaft.

Magnetic field detection: The magnetic field sensing components in the sensor, such as magnetoresistive sensor or Hall elements, are affected by the magnetic field generated during rotor rotation. The change in magnetic field can cause changes in the output voltage or current of the sensing element.

Signal processing: The voltage or current signal output by the sensor is sent to the electronic circuit of the rotational speed monitor DF9011 Pro for signal processing. Electronic circuits may include components such as amplifiers, filters, and analog-to-digital converters.

Speed calculation: By measuring the frequency or period of the sensor output signal, the rotational speed meter can calculate the rotor speed. The unit of speed is usually revolutions per minute.

Display: The DF9011 Pro rotational speed meter has a digital display screen used to display the measured speed value. It can also provide graphical indications or alarm functions, so that operators can have a more intuitive understanding of the speed status.

The DF9011 Pro speed meter also has other functions, such as data recording, communication interface, and alarm settings, to meet specific application requirements. But overall, its working principle is based on sensors detecting rotor motion and converting it into electrical signals, then determining the speed through signal processing and calculation, and displaying the results.