Measuring device and method for surface defect of main pump spindle of nuclear power plant

• Main Authors: ZHOU QIAOCHAN, LUO LIANGGAI, CHEN HAIBING, LU WENHUA, QIAN ANJIA, LU HUIQIANG, SHI LEI, ZHU LEI, MA YUEFENG, CHENG WEIGUO
• Format: Patent
• Language: Chinese; English
• Published: 15.12.2017
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The invention provides a measuring device for a surface defect of a main pump spindle of a nuclear power plant. The measuring device comprises a keyphasor mark, a key phase sensor, a vibrating sensor, a signal receiving and processing unit, and a display terminal, wherein the keyphasor mark is arranged on the main pump spindle and is used for establishing an initial position of the surface defect of the spindle; the key phase sensor is used for detecting a key phase of the main pump spindle and describing the initial position and the ending position of the surface defect of the main pump spindle by using radian with the key phase as zero rotation; the vibrating sensor is used for measuring the vibration of the main pump spindle; the signal receiving and processing unit is used for receiving a signal of the vibrating sensor and the key phase sensor and carrying out data processing; the display terminal is used for displaying the data processed by the signal receiving and processing unit. The invention further