Method and device for measuring the inclination angle of paired quarter rings and circular nested polar plates facing each other and interlacing them
A technology of interleaved, measuring devices, applied in the directions of measuring devices, surveying and navigation, measuring inclination, etc., can solve the problem of sensor failure and other problems, and achieve the effect of improving sensitivity and accurate measurement results.
Active Publication Date: 2016-06-29
HARBIN INST OF TECH
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Problems solved by technology
[0007] However, in the case of this electrostatic capacitive sensor, when the inclination angle of the cylindrical airtight container is too large, the liquid inside the container is biased to one side and loses contact with the other main electrode. effect
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[0029] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] A pair of quartered ring-circle nested polar plates are facing and staggered inclination measuring device, including sensor unit 27, capacitance measuring unit 28 and inclination calculation unit 29, such as Figure 8 Shown is a schematic diagram of the overall structure of the inclination measuring device.
[0031] figure 1Shown in the perspective view of the appearance of the sensor unit of the inclination measuring device, the structure of the sensor unit 27 is: the two open ends of the open cylindrical container 15 are respectively sealed and assembled with two circular insulating substrates 7, 14 , two annular coplanar capacitance probes A1, B8 are respectively equipped on the sides of two circular insulating substrates 7 and 14 in the cavity of the cylindrical container 15; the annular coplanar capacitance probe A1 is composed of a circul...
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The invention relates to a method and a device for measuring dip angles of oppositely crossly placed paired quartered ring-circle nested polar plates and belongs to an angular surveying technique. The device is characterized in that each of two annular coplanar capacitance measuring heads of a sensor unit consists of a round metal plate and four quarter circular-ring-shaped metal plates, wherein the five metal plates are coplanar and concentric with one another, the four quarter circular metal plates are uniformly distributed along the circumferential direction, each quarter circular metal plate can generate capacitance with the round metal plate, the two annular coplanar capacitance measuring heads are mounted on two round insulating substrates, the two round insulating substrates are taken as bottom surfaces of a cylindrical container, the cylindrical container is transversely arranged, insulating liquid equal to 1 / 2 volume of the container is injected into the container in a sealing manner, potentials of the ten metal plates are extracted out by virtue of potential leads, the ten metal plates are connected with an input end of a capacitance measuring unit through the four potential leads, and the capacitance measuring unit is connected with a dip angle calculating unit. According to the device and the method, when the container tilts, the relative positions of the two annular coplanar capacitance measuring heads and the insulating liquid are changed, and a dip angle value can be calculated by measuring the change of a capacitance value of a capacitor.
Description
technical field [0001] The invention belongs to the technical field of angle measurement, and mainly relates to an inclination angle measurement method and device. Background technique [0002] At present, the known sensing method for measuring the inclination angle utilizes the principle that the surface of the liquid is always kept horizontal in a static state. The container with liquid inside tilts, and after stabilization, the liquid level remains horizontal, but the relative position of the liquid to the container changes. By detecting the electrical quantity change caused by this process, the angle of the container relative to the liquid surface inside is calculated, and then the inclination angle of the container is determined. [0003] For the sensing method of detecting the inclination angle between the container and the liquid surface added inside, it can be divided into two categories: resistive type and electrostatic capacitive type. [0004] Introduced in Japa...
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IPC IPC(8): G01C9/20
CPCG01C9/20G01C2009/062G01C2009/185
Inventor 郭佳豪谭久彬胡鹏程
Owner HARBIN INST OF TECH