the horizontal plane from which heights and depths are calculated
Examples of 'datum plane' in a sentence
datum plane
The system adopts the inclination sensor and laser emitter as the datum signal to form the datum plane.
Liu Jiangtao, Cui Baojian, Jiang Haiyong, Yi Jinggang 2013, 'Measurement and Control System of Self-propelled Levelling Machine Based on InclinationSensor and Laser', Sensors & Transducershttp://www.sensorsportal.com/HTML/DIGEST/november_2013/PDF_vol_159/P_1542.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The hydraulic servo system controls the levelling part to work on the plane that parallels with the datum plane.
Liu Jiangtao, Cui Baojian, Jiang Haiyong, Yi Jinggang 2013, 'Measurement and Control System of Self-propelled Levelling Machine Based on InclinationSensor and Laser', Sensors & Transducershttp://www.sensorsportal.com/HTML/DIGEST/november_2013/PDF_vol_159/P_1542.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)