Omnidirectional microfluid inertial threshold accelerometer
An accelerometer and microfluidic technology, applied in the field of sensors, can solve the problems of blank threshold sensors and failure to meet market demand.
Pending Publication Date: 2021-12-21
QUJING NORMAL UNIV
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Problems solved by technology
[0004]
However, in the current market, the threshold sensor designed using liquid conductive liquid as a sensitive element is still blank in the market and cannot meet the needs of the market
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[0029] Next, the technical solutions in the embodiments of the present invention will be described in connection with the drawings of the embodiments of the present invention, and it is understood that the described embodiments are merely the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art are in the range of the present invention without making creative labor premise.
[0030] In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "post", "left", "right", "vertical", "horizontal", "top", The orientation of the "bottom" "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is merely described in the present invention and simplified description, rather than indicating or implies the device or The components must have specific orientation...
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Abstract
The invention discloses an omnidirectional microfluid inertial threshold accelerometer, which comprises a substrate, liquid drop fixing bumps, a channel bumps, a packaging cover, a conductive liquid drop and a signal electrode, the liquid drop fixing bumps and the channel bumps are distributed on the substrate in a circumferential array, and gaps of the liquid drop fixing bumps and the channel bumps form a microfluid channel, an air circulation channel and a liquid storage cavity respectively; the packaging cover and the substrate are correspondingly arranged and are fixed through bolts; the conductive liquid drop is arranged in the liquid storage cavity; the signal electrode corresponds to the microfluid channel; the outer end of the microfluid channel is sealed by a sealant; a solid-liquid contact type mechanism is formed by using the conductive liquid drop and the microfluid channel structure, when the inertial acceleration exceeds a design threshold value, the conductive liquid drop flows into a microfluid channel and makes contact with the signal electrode, the signal electrode is conducted instantly, and when the inertia disappears, the conductive liquid drop returns to the initial state again, the signal electrode is disconnected, high-precision inertial measurement and high-precision angle measurement on a horizontal plane can be realized, and the service life is greatly prolonged.
Description
Technical field [0001] The present invention relates to the field of sensor technology, and more particularly to a wholidiene microfluidic inertial threshold accelerometer based on microfluidic chip design. Background technique [0002] The inertial threshold accelerometer is a sensor device that is integrated with integral sensation, as a passive device, extensive potential application requirements in the field of consumer electronics, aerospace, military equipment. With the development of the Internet of Things system, the inertial detection / detection device is large in the Iron system, especially in the partial devices of the power supply, or the interior of the system of the battery, the endless inertial threshold sensor performance It has great advantages. However, in the integrated installation system, in order to monitor the acceleration threshold in multiple directions, it is often necessary to mount a plurality of single-axis threshold accelerometers in different direc...
Claims
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Login to View More IPC IPC(8): G01P15/08
CPCG01P15/08
Inventor 陈文国王瑞王慧颖
Owner QUJING NORMAL UNIV