Moving body rotation speed measurement device

A moving body rotation speed measurement device, comprising:

• an antenna having directivity, that transmits a transmission wave to a spherical moving body based on a supplied transmission signal, and receives a reflection wave reflected at the moving body and generates a received signal;
• a Doppler sensor that supplies the transmission signal to the antenna, and generates a Doppler signal having a Doppler frequency based on the received signal;
• an input unit to which diameter information of the spherical body is input;
• a measurement processing unit that calculates a movement speed and a rotation speed of the moving body based on the Doppler signal and the diameter information, wherein the movement speed is a speed of movement of the moving body as the moving body moves from one position to a second position in a direction of movement;
• a display unit that displays display contents including the calculated movement speed and rotation speed;
• and
• a casing that retains at least the display unit;
• wherein the measurement processing unit has correlation equations for calculating the movement speed and the rotation speed from the Doppler frequency for the diameter information of each spherical body in advance, and calculates the movement speed and the rotation speed by selecting the correlation equations based on the diameter information input to the input unit.

A moving body rotation speed measurement device, comprising:

• an antenna having directivity, that transmits a transmission wave to a spherical moving body based on a supplied transmission signal, and receives a reflection wave reflected at the moving body and generates a received signal;
• a Doppler sensor that supplies the transmission signal to the antenna, and generates a Doppler signal having a Doppler frequency based on the received signal;
• an input unit to which diameter information of the spherical body is input;
• a measurement processing unit that calculates a movement speed and a rotation speed of the moving body based on the Doppler signal and the diameter information, wherein the movement speed is a speed of movement of the moving body as the moving body moves from one position to a second position in a direction of movement;
• a display unit that displays display contents including the calculated movement speed and rotation speed;
• and
• a casing that retains at least the display unit;
• wherein the measurement processing unit calculates the rotation speed using the width between a point on the high frequency side of the Doppler signal having a value of signal intensity that is lower than the peak value by a predetermined level and:
• a point on the low frequency side of the Doppler signal having a value of signal intensity that is lower than the peak value by a predetermined level, or the point that takes the peak value.