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Measuring device for measuring tilt angle and medical equipment

A measuring device and technology of inclination angle, applied in the field of measurement, can solve the problems of high cost, inability to memorize the current absolute position, etc., and achieve the effect of easy implementation, simple software design, and high sampling accuracy

Inactive Publication Date: 2014-04-02
SIEMENS SHANGHAI MEDICAL EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first type of encoder only records the moving speed but cannot memorize the current absolute position, so the software needs to record the current speed in real time and convert it into an angle to record
The second type of encoder can record both the moving speed and the absolute position, but the cost will be higher than the first type of encoder

Method used

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  • Measuring device for measuring tilt angle and medical equipment
  • Measuring device for measuring tilt angle and medical equipment
  • Measuring device for measuring tilt angle and medical equipment

Examples

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Embodiment Construction

[0038] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples are given to further describe the present invention in detail.

[0039] figure 1 A schematic diagram of a measuring device according to an exemplary embodiment of the invention is shown, which can be used to measure the inclination angle of a rotating device rotating about a rotating axis. The two accelerometers 110 and 120 are arranged on both sides of the rotating shaft 200 and rotate together with the rotating device simultaneously. The figure shows the positions of the two accelerometers at two different inclination angles. Orthographic projections of the two accelerometers 110 and 120 along the rotation axis 200 are located on the same straight line passing through the rotation axis 200 , in other words, the line connecting the two accelerometers 110 and 120 passes through the rotation axis 200 .

[0040] The distances of the two accelerometers ...

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Abstract

The invention discloses a measuring device for measuring the tilt angle of a rotating device, which rotates around a rotating shaft, and also discloses medical equipment. The measuring device comprises: two accelerometers, which are arranged on the rotating device, have a connection line passing through the rotating shaft, and respectively measure the tangential acceleration component and the normal acceleration component of one tilt angle; a microprogram controller, which is used for calculating the tangential acceleration component and the normal acceleration component measured by the two accelerometers so as to acquire the tilt angle of the rotating device; and a connecting circuit, which is used for connecting the two accelerometers and the microprogram controller. The measuring device provided by the invention has the advantages of long service life, low cost, high accuracy and large detection range.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a measuring device for measuring the inclination angle of a rotating device rotating around a rotation axis, and to a medical device comprising the measuring device, in particular to a measuring device for measuring mammography System (Mammo system). Background technique [0002] At present, potentiometers and encoders are often used to measure the moving speed and inclination angle of the rotating device rotating around the rotating shaft, so as to accurately position the rotating device rotating around the rotating shaft. These methods are used in many traditional motor control technical solutions. For example, in most mammography systems, these methods are used to measure the speed of movement and tilt angle of the rotating gantry. [0003] Among them, the cost of the potentiometer is relatively low, and it is usually necessary to replace the potentiometer every 2-3 yea...

Claims

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Application Information

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IPC IPC(8): G01C9/00
CPCG01C9/00A61B6/00A61B6/502G01C21/12
Inventor 丁吉昌李钢杨巍
Owner SIEMENS SHANGHAI MEDICAL EQUIP LTD
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