Measuring apparatus

A measuring apparatus configured to measure an object, the measuring apparatus comprising:

• a first angle measuring member comprising:
• a first connecting shaft,
• a first needle rotatably connected to the first connecting shaft, and
• a first angle measuring instrument mounted on the first connecting shaft and electrically connected to the first needle;
• a second angle measuring member comprising:
• a second connecting shaft rotatably connected to the first connecting shaft,
• a second needle rotatably connected to the second connecting shaft, and
• a second angle measuring instrument mounted on the second connecting shaft and electrically connected to the second needle;
• and
• a display module mounted on the first angle measuring member or the second angle measuring member and comprising a processing unit and a display unit electrically connected to the processing unit;
• wherein the first angle measuring instrument and the second angle measuring instrument are in wireless connection with the display module;
• wherein the first needle and the second needle are configured to contact surfaces of the object, the first angle measuring instrument is configured to measure a first angle between the first needle and the first connecting shaft and transmit the first angle to the processing unit, and the second angle measuring instrument is configured to measure a second angle between the second needle and the second connecting shaft and transmit the second angle to the processing unit;
• and
• wherein the processing unit is configured to calculate a size of the object based on the first angle, the second angle, and lengths of the first connecting shaft and the second connecting shaft, and the display unit is configured to display the size of the object calculated by the processing unit.

A measuring apparatus configured to measure an object, the measuring apparatus comprising:

• a first angle measuring member comprising:
• a first connecting shaft,
• a first needle rotatably connected to the first connecting shaft and configured to contact surfaces of the object, and
• a first angle measuring instrument mounted on the first connecting shaft and electrically connected to the first needle;
• a second angle measuring member comprising:
• a second connecting shaft rotatably connected to the first connecting shaft,
• a second needle rotatably connected to the second connecting shaft and configured to contact surfaces of the object, and
• a second angle measuring instrument mounted on the second connecting shaft and electrically connected to the second needle;
• and
• a display module mounted on the first angle measuring member or the second angle measuring member and comprising a processing unit and a display unit electrically connected to the processing unit;
• wherein the first angle measuring instrument and the second angle measuring instrument are in communication with the display module;
• wherein the first angle measuring instrument is configured to measure a first rotary angle of the first needle and transmit the first rotary angle to the processing unit, and the second angle measuring instrument is configured to measure a second rotary angle of the second needle and transmit the second rotary angle to the processing unit;
• and
• wherein the processing unit is configured to calculate a size of the object based on the first rotary angle, the second rotary angle, a first angle between the first needle and the first connecting shaft in an initial state, a second angle between the second needle and the second connecting shaft in an initial state, and lengths of the first connecting shaft and the second connecting shaft, and the display unit is configured to display the size of the object calculated by the processing unit.