TWM241637U - Single axle level sensor - Google Patents

Description

M241637 V. Creation instructions (1) The technical field to which the new type belongs: the single two U ί :: tester ', especially-a kind of sensor to measure it (such as: impedance value): out,,: direction or angle 'It is based on: the electrical signal can accurately determine the tilt number measured by the -test I circuit, the prior technology: t, the sensor (sensor) is an automatic detection system and an automatic control system ^ ^ components, which can be a physical quantity, chemical The electronic components of the gas signal of biomass, biomass and thunder m gas signal, the output signal form includes. ^ ^ / ;, l frequency, pulse, etc., to meet the transmission and processing of signals in the automatic detection system and automatic control system. Recording, display and control requirements. As far as a traditional level sensor is concerned, its role is to express the level condition of an object in the form of voltage (or current, resistance, capacitance). Please refer to the figure below, which is mainly represented by The two circular glass substrates 10 and 12 are closely connected to form a closed body. One of the glass substrates 12 is provided with two orthogonal axes (x-axis and γ-axis) on the inner side of the glass substrate 12 and two sensing electrodes 1 respectively. 4,16, that is, the two axes have &, &, γ, and γ induction electrodes 14, 16, and another glass substrate 10 inside the center 2 positions are provided 2: the induction electrode 18, and the body! There is _ electrolyte solution: not shown in the figure), there is a bubble in the electrolyte solution (not shown in the figure), when the flatness sensor performs a level test, 'the stomach bubble can follow the body' Change 'and generate a displacement in the body i, so that the sensing electrodes'

Page 5 M241637 V. Creation instructions (2) 1 4, 16 and the other sensing electrode 18, the resistance value will be different according to the position of the bubble in the body 1. In other words, the change in the displacement of the bubble on the X axis is the change in the resistance value sensed between the 1 and X2 induction electrodes 14 and the other induction electrode 18 as a measure of the displacement of the bubble on the X axis. Change signal, and the displacement of the bubble on the Y-axis is the change in resistance value sensed between Y! And y2 sensing electrode 16 and another sensing electrode 18 as a measurement of the bubble on the Y-axis In other words, when the bubble changes with the inclination angle of the body 1, the resistance values of the sensing electrodes 14 and 16 (Xi, X2, Yi, Y2) are changed, and the resistance value changes. The quantity can be converted into a data (such as an angle) by a measuring circuit, so that the user can know the horizontal tilt angle of the vertical position where the level sensor is located after reading the data. ^ However, when the bubble is at the center of the χ axis, Υ! Has a linear relationship with the change in the resistance value of the sensing electrode 16 of the y2, that is, the angular displacement of the bubble Δ θ is proportional to △ Υι and △ y2. At the center, the resistance values of the 'X!' And the 乂 2 sensing electrode 14 are different from each other. That is, the angular displacement of the bubble △ Θ is proportional to △ & and △ &. W ΐ η When the bubble is on the X-axis, it moves to the position of the end of the pumping, or K moves △: two; bit? / The position of the end of the χ-axis is the angle of the bubble of 此 11. Here, we can take advantage of Γ 乂 2, then the wireless relationship is because the bubble is not in the γ-axis. The detector mainly advises: vt detects the tilting angle of the x-axis, so 'levelness, but the detection is fixed in a non-linear area at a point-vertical position, so that f 5 is oriented (x-axis or γ-axis) The angle is very large, so that the level sensor can only use the laser level check M241637 V. Creation instructions (3) On an axial level level ruler, it will send an undetectable situation. If you can develop a levelness sensor to the level, I believe that if the instrument is used to detect the non-linear area of the single student, it will be a kind that can be used to detect the uniaxial public. New content: The shortcomings of the level sensor of ▲, Yu Chuan, and Xian. After a long period of hard research and implementation, the creator finally developed and designed a kind of single-axis level sensor. One of the purposes of this creation is to provide a uniaxial levelness sensor, which is provided with a container with a fan-shaped cavity inside, a sensing electrode is arranged on a curved surface of the fan-shaped cavity, The other curved surface is provided with two detection electrodes, and a bubble and a conductive liquid are provided in the fan-shaped cavity. When the sensor is placed on an object and is affected by gravity (or gravity), the bubble will be in the The internal displacement of the fan-shaped cavity changes the contact area between the detection electrode and the sensing electrode using the conductive liquid to make the impedance between the two detection electrodes and the sensing electrode change, so that a measurement circuit is used to measure the impedance. The change status of the value will be able to accurately determine the tilt direction or angle of the object. In order that the review committee can further understand and understand the purpose, shape, structural features and effects of this creation ’, the following examples are given in conjunction with the illustrations. The detailed description is as follows:

Page 7 M241637 V. Creation instructions (4) This creation is a single-axis level sensor, as shown in Figures 2 and 3, with a container 2 which is recessed with a fan-shaped inner cavity 2 0, the fan-shaped inner cavity 20 is composed of a first curved surface 201, a second curved surface 202, and two connecting surfaces 203, wherein the two connecting surfaces 230 are just connected to the first, The two curved surfaces 201, 202 are between the edges' and the first sensing surface 22 1 is provided with a sensing electrode 2 2, the sensing electrode 2 2 just extends to both ends of the first curved surface 201, and the The second curved surface 2 0 2 is provided with two detection electrodes 24. The two opposite ends of the two detection electrodes 24 are spaced at an appropriate distance from the center of the second curved surface 2 0. The other end is along the fan-shaped inner cavity. The inner wall of the 20 is gradually extended to a position close to the induction sensor 22, and a bubble 26 and a conductive liquid 28 are provided in the fan-shaped inner cavity 20, so that the two detection electrodes 24 and the induction electrode 22 can be used. The conductive liquid 28 is conductive, and the bubble 26 is displaced in the fan-shaped cavity 20 to change the space between the two detection electrodes 24 and the sensing electrode 22. Through the contact area of the conductive liquid 28 phase conduction, different impedance values are generated between the two detection electrodes 24 and the sensing electrodes 22, so that the uniaxial level sensor can use a measurement circuit to measure the change in the impedance value State, and can accurately determine the tilt direction and angle. Because the conductive liquid 28 has a specific resistance value, when the bubble 26 is displaced in the fan-shaped cavity 20, the shape of the conductive liquid 28 in the fan-shaped cavity 20 changes differently, so that the The two detection electrodes 24 change between the sensing electrodes 22 and the conductive liquid 28. In other words, when measuring 5 an object, one of the surfaces adjacent to the sensing electrode 22 is placed on a reference plane of the object, and the bubble 2 6 will be moved by the gravity along the second curved surface 202 to change the The conductive liquid 28 and the sensing electrode 22, the two

M241637

? Test? 24 of contact area. For example, when the measured object is in a horizontal state, the bubble 26 is located at the center of the second curved surface 202, and the contact area between the conductive electrode 28 and the two detection electrodes 24 is equal, so that the two detection electrodes 4: The same impedance value is generated between the sensing electrodes 22; when the measured object is tilted at an angle, the bubble 26 deviates from the center position of the second curved surface 202, = toward one of the detection electrodes 24, so that The contact surface of one of the detection electrodes 24 and the bubble 26 becomes larger, which results in a larger impedance value, and the other detection electrode 24 has a larger impedance due to the large contact area between the conductive liquid 28 and the sensing electrode 22 through the conductive liquid 28. Small, the change of the impedance value can be expressed in the form of voltage through the measuring circuit, so that the tilting direction and angle of the object can be accurately determined. In a preferred embodiment of this creation, please refer to FIG. 2 and FIG. 3, “The container 2 is composed of a ceramic substrate 21 and a flat glass 23 closely connected together” and the fan-shaped cavity 2 〇 is recessed in the ceramic base 21, and the flat glass 23 is covered on one side of the ceramic base 21 provided with the fan-shaped inner cavity 20, so that the user can observe through the flat glass 23 The air bubble 26 is at the position of the fan-shaped inner cavity 20. Because if the bubble 2 6 moves to the two turning points a or B in the fan-shaped inner cavity 20 within the second curved surface 202, it means that the part of the bubble 2 6 is not in contact with the When the two detection electrodes 24 are in contact, the resistance between the two detection electrodes 24 and the induction electrode 22 will be relatively high because there is no conductive liquid 28. In this way, between the two detection electrodes 24 and the induction electrode 22 The resistance value will change non-linearly, making the impedance value sensed by this single-axis levelness sensor inaccurate. In addition, this creation uses a measurement method that approximates the value of (6) created by M241637, so In the best ideal state of this creation, the displacement change of the bubble 26 is proportional to the change of the resistance value, and in the ideal state diagram of the measurement method (as shown in Figure 4), the two detection electrodes 2 & ^ And b indicate that the sensing electrode 22 is represented by c, and the sensing range between the ends of a and b is represented by-α to α. In addition, assuming that the resistance between the two detection electrodes 24 and the sensing electrode 22 is The value changes from 0K ohms (Ω) to 1] {ohms (Q), so by Figure 4. Known 'displacement of the bubble 26 and the resistance value changes, should a positive - than. But ‘the single-axis level sensor is actually used because

The existence of the electro-hydraulic 28 makes the above-mentioned non-linear change phenomenon between the two detection electrodes 24 and the sensing electrode 22 (as shown in Fig. 5). Therefore, in order to increase the range of the linear change in the resistance value between the two detection electrodes 24 and the sensing electrode 22, in this embodiment, the other ends of the two detection electrodes 24 will be along the second curved surface. 2 0 2 continues to the position where the two connecting surfaces 20 3 are close to the sensing electrode 22, so that the contact range between the air bubble 26 and the detection electrode 24 becomes larger. Thus, the container 2 is adjacent to the sensing electrode 22. When one side is placed on an object, the bubble 26 will not easily touch the two detection electrodes 24 adjacent to the sensing electrode 22 when the fan-shaped inner cavity 20 moves.

The two end edges' are kept in contact with the detection electrode 24, so that the impedance value generated between the two detection electrode 24 and the sensing electrode 22 still produces a linearly changing impedance value. In addition, 'Since the ceramic substrate 21 is made by sintering ceramics, although the ceramic substrate 2 1 may cause some errors in the size of the ceramic substrate 21 due to the physical phenomenon of thermal expansion and contraction, but the ceramic substrate 2 1 Closed in a smooth state

Page 10 M241637 V. Creation Instructions (7) '— Shrinking' makes the ceramic substrate 21 not used for secondary processing, which will save manufacturing costs. In addition, the bubble 26 mainly moves left and right along the uniaxial direction, so that the angular displacement of the bubble 26 will be proportional to its displacement relative to the two detection electrodes 24, and a linear change in resistance value can be produced. The angular inclination produced by the uniaxial movement back and forth can have zero impact on the object. Because the bubble 26 moves back and forth even if there is a large angular displacement change, the bubble 26 can be located within the range of the two detection electrodes 24, so that The state of contact between the two detection electrodes 24 and the sensing electrode 22 and the conductive liquid 28 does not change much. Therefore, the detected impedance value between the two detection electrodes 24 and the sensing electrode 22 remains linear. . In this creation, please refer to FIG. 3, the two detection electrodes 24 and the sensing electrodes 22 are made of a metal conductive material (such as gold, silver, etc.) by using photosensitive or vacuum coating or manual coating. Brocade, platinum) sintered in the container 2 and arranged in the container 2, and the container 2 is provided with two extension electrodes 25 and one other extension electrode 27, wherein one end of the two extension electrodes 25 and a detection electrode respectively The electrode 24 is connected, and the other end extends away from the curved surfaces 2 01, 2 02, and extends to an end edge of the container 2 adjacent to the second curved surface 2 02, and the other extends One end of the electrode 27 is connected to the sensing electrode 22, and the other end extends in a direction away from the curved surfaces 2 01, 2 02, and extends to an end edge of the first curved surface 2 01 adjacent to the second surface 2 In this way, the other ends of the two extension electrodes 25 and the other extension electrode 27 can be connected to the measurement circuit. The conductive liquid 28 can be a very weakly acidic or weakly sensitive, conductive and liquid salt compound. Such chemical salts will not attack the inner wall of the container, and its resistance is low, making the conductive The liquid 28 series provides good electrical conductivity.

M241637 V. Creative Instructions (8) With the above-mentioned components, the single-axis levelness sensor will have high accuracy, wide measuring range, long service life, stable and reliable performance, simple structure, small size, light weight, and impedance It has good response characteristics, and can work normally under severe conditions such as high temperature, low temperature, high pressure, strong vibration, strong magnetic field nuclear radiation and chemical corrosion. According to the above, it is only one of the best specific embodiments of this creation, but the structural characteristics of this creation are not limited to this. Any person familiar with the art can easily think about the changes or modifications in this creative field. , Can be covered by the patent scope of this case.

The M241637 diagram on page 12 is a simple illustration. Figure 1 is an exploded view of a traditional level sensor; Figure 2 is a exploded view of the container of this creation; Figure 3 is a detection electrode in the container of this creation Schematic diagram of the sensing electrode, conductive liquid, and air bubbles; Figure 4 is a schematic diagram of the resistance value of the general variable resistor after its rotation angle and both ends, that is, the best ideal state of the measurement angle of this creation; Figure 5 is The schematic diagram of the actual state of the resistance values between the detection electrode, the sensing electrode, the conductive liquid and the bubble.

Symbols of the main parts: Container ... 2 Fan-shaped cavity ... 20 First curved surface ... ...... 201 Second curved surface ......... 202 Connection surface ......... 2 0 3 Ceramic substrate ... ..... 21 Induction electrode ......... 22 Flat glass ......... 23 Detection electrode ......... 24 Extension electrode ......... 25 Bubble ... 2 6 Another extension electrode ... 27 Conductive liquid ............... 28

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Claims (1)

M241637 6. Scope of patent application1. A single-axis levelness sensor, including ·· 々, the state, the container is provided with a fan-shaped inner cavity, the fan-shaped product = Ϊ a curved surface, a second curved surface and two It consists of a connecting surface, one of which is a curved surface and the second curved surface are provided on the corresponding side of the fan-shaped cavity. The two connecting surfaces are just connected between the two end edges of the first and second curved surfaces. An induction electrode is arranged. At the two edges of the first bend to the first curved surface, two and two detection electrodes are arranged on the second curved surface, and the opposite ends of the second detector are located exactly on the second curved surface. Between the central position = two suitable distances, and the other end along the inner wall of the fan-shaped cavity, gradually extending to a position close to the pole; ~ A conductive liquid is set in the fan-shaped cavity, so that the two detection /, the sensing electrode The conductive liquid phase can be used for conduction; a bubble is set in the fan-shaped inner cavity to change the two detection electrodes and the sensing electrode through the displacement of the bubble in the inner cavity, and the liquid phase is conducted through 2 liquid phases; Of contact surface # 'makes the two detection electrodes and induction Have different values of impedance. 2. The uniaxial horizontality sensing as described in item 1 of the scope of patent application 3, wherein the container is closely connected by a ceramic substrate and a flat glass in a group of ° ^, and the fan-shaped inner cavity is recessed in the ceramic In the base body, the flat plate is covered on one surface of the Taurman base body provided with the fan-shaped inner cavity. 3. The uniaxial horizontality sensing as described in item 1 of the scope of patent application ^ wherein the other ends of the two detection electrodes will continue along the other curved surface and continue to extend, and the two connection surfaces are close to the position of the induction electrode. The cavity is the first and the extended electricity measurement should be from the electric electrode to the M241637. 6. The scope of patent application 4. The uniaxial level sensor as described in item 1 of the scope of patent application The container is provided with two extension electrodes and another extension electrode. One end of the two extension portions is connected to a detection electrode, and the other end extends to the outside of the container adjacent to the curved surface. One end edge of the second curved surface, and one end of the other extension electrode is connected to the sensing electrode, and the other end extends away from the curved surfaces to an end edge adjacent to the first curved surface outside the container. Page 15