A wireless device for vibration displacement measurement in centrifugal-vibration composite device
A compound device and vibration displacement technology, which is applied in the field of wireless devices, can solve problems such as signal quality degradation, and achieve the effects of saving installation space, improving signal quality, and reducing the length measurement range
Active Publication Date: 2018-07-24
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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AI Technical Summary
Problems solved by technology
The displacement measurement results are transmitted through wireless transmission, which avoids the problem of signal quality degradation caused by signal transmission through the conductive slip ring of the centrifuge
Method used
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Embodiment 1
[0032] A wireless device for vibration displacement measurement in centrifugal-vibration compound devices, such as figure 1 , figure 2 As shown, including an inclination measuring sensor 1 , a distance meter 2 , a wireless transmitter 3 , a wireless receiver 4 and a tilt displacement converter 5 .
[0033] The oblique displacement transducer is fixedly connected to the inner wall of the vibrating table; the oblique displacement transducer forms an included angle with the table top of the vibrating table; the angle value of the included angle is determined by the inclination measuring sensor 1 attached to the oblique displacement transducer Measurement: The data collected by the inclination measurement sensor 1 and the rangefinder 2 are transmitted to the wireless receiver 4 through the wireless transmitter 3, and the wireless receiver 4 is forwarded to the computer for processing.
[0034] The device is placed inside the vibrating table of the centrifugal-vibration compound ...
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The invention relates to the field of vibration measurement devices, and specifically relates to a wireless device for measuring the vibration displacement of a centrifugation-vibration composite apparatus. The device comprises an inclined displacement converter, a displacement converter inclination angle measurement sensor, a high-precision infinitesimal displacement sensor for measuring infinitesimal displacement, and a wireless data transmitter. Therefore, the device enables the measurement of the displacement of a vibrating platform to be achieved through the measurement of a displacement smaller than the vibration displacement, and improves the measurement precision of the vibration displacement of the vibrating platform. In addition, the measured displacement data will be transmitted to a wireless receiver connected with a computer through the wireless transmitter, thereby solving problems that a displacement signal of the vibrating platform in the centrifugation-vibration composite apparatus is too small and is difficult to transmit through a conductive slip ring. The device is small in structure, is convenient to use, changes the measurement direction of the vibration displacement of the vibrating platform, lows the demands for the measurement range of a vibration displacement measurement device, and achieves a purpose of improving the displacement measurement precision of the vibrating platform in the centrifugation-vibration composite apparatus.
Description
technical field [0001] The invention relates to a wireless device for vibration displacement measurement in a centrifugal-vibration composite device, belonging to the field of vibration measurement devices. Background technique [0002] During the use of the vibrating table, it is necessary to measure the vibration displacement of the vibrating table. Commonly used vibration table displacement measurement methods include absolute method and relative method. The absolute method is based on the principle of laser interference, and requires the construction of a complex and precise optical path. The displacement accuracy can reach 0.1 microns, but the cost is high, and it is usually only used in standard vibration tables. In addition, a small displacement sensor (such as a capacitive proximity sensor) can be used to measure a small vibration displacement, but this type of sensor has a limited measurement range and is difficult to be used for a vibration table with a large ampl...
Claims
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IPC IPC(8): G01B21/02
CPCG01B21/02
Inventor 董雪明熊磊刘静雅
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA