Measuring head space posture measuring method guided by ultrasonic positioning

An ultrasonic positioning and measurement method technology, applied in positioning, measuring devices, radio wave measuring systems, etc., can solve the problems of yaw error, measurement error, and inability to maintain parallel positions all the time, so as to improve accuracy and reliability, eliminate The effect of measurement error

Inactive Publication Date: 2014-02-05
HEFEI UNIV OF TECH
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  • Claims
  • Application Information

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Problems solved by technology

Due to the influence of the straightness error of the guide rail during the movement of the probe, the axis directions of the three coordinate axes of the two coordinate systems cannot always maintain a parallel position. In the large-travel space coordinate system of the probe, not only the axis direction At the same time, there are als

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  • Measuring head space posture measuring method guided by ultrasonic positioning
  • Measuring head space posture measuring method guided by ultrasonic positioning

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Embodiment Construction

[0010] Such as figure 1 , 2 As shown, a probe spatial attitude measurement method guided by ultrasonic positioning includes an ultrasonic positioning and guiding probe 1, and the ultrasonic positioning and guiding probe 1 includes a flat plate 2, and a group of Ultrasonic emission sensors 3, each group of ultrasonic emission sensors 3 has four ultrasonic emission sensors, the bottom edge of the flat panel 2 is connected with a probe 4, and the top edge of the flat panel 2 is equipped with an electromagnetic emission antenna 5, and each group of four ultrasonic emission sensors The sensor 3 is excited by four ultrasonic frequencies with different values. The normal direction of the vibration surface of each group of four ultrasonic transmitting sensors 3 points to the same direction on the outer surface of the plate where it is located. The ultrasonic positioning guides the four ultrasonic transmitting sensors 3 on one side of the probe 1. The ultrasonic signals of 4 different fr

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Abstract

The invention discloses a measuring head space posture measuring method guided by ultrasonic positioning. The method is characterized in that an ultrasonic positioning guidance measuring head is provided. The ultrasonic positioning guidance measuring head comprises a flat plate, the front face and the back face of the flat plate are respectively and fixedly provided with a set of ultrasonic transmission sensors, each set of ultrasonic transmission sensors comprises four ultrasonic transmission sensors, the bottom side of the flat plate is connected with a probe, an electromagnetic transmission antenna is installed on the top side of the flat plate, the four ultrasonic transmission sensors in each set are excited by four ultrasonic frequencies of different values, and normal directions of vibration faces of the four ultrasonic transmission sensors in each set are pointed to the same direction of the outer side face of the flat plate. According to the method, direct measuring on six-degree-of-freedom postures of measuring head space is achieved, measuring error, caused by linearity of a large-stroke guide rail of a large-size measuring machine, stress deformation in a measuring head elastic supporting body, imbalance force of the elastic supporting system and the like, is removed, and the precision and reliability of large-size measuring are improved.

Description

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Claims

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Application Information

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Owner HEFEI UNIV OF TECH
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