Anemoscope based on Hall angle sensor

Abstract

The utility model discloses an anemoscope based on a Hall angle sensor, which relates to the technical field of anemoscopes and comprises a base, a Hall angle sensor body is mounted on the top surface of the base, a top cover is arranged at the top of the Hall angle sensor body, a main shaft is rotatably arranged in the middle of the top surface of the top cover, a support is slidably arranged on the main shaft, and a wind blade is arranged at one end of the support. The other end is in threaded connection with a balancing weight; a circular cavity is formed in the middle of the top face of the main shaft and internally provided with a fixing piece. According to the utility model, no contact with a measured object is realized through the Hall angle sensor, so that the damage and interference to the measured object are reduced, and the service life of the anemoscope is prolonged; through the use of the fixing piece, the bracket can be conveniently and quickly mounted or dismounted, so that the wind direction paddle can be conveniently and quickly dismounted or mounted, and the wind indicator can be further conveniently carried.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wind direction indicator technical field especially relates to a kind of wind direction indicators based on hall angle sensor. BACKGROUND

[0002] Wind direction indicator is a kind of instrument for measuring wind direction, the existing wind direction indicator adopts conductive plastic potentiometer to detect, and the use principle of potentiometer is actually slide rheostat principle;The resistance body of potentiometer has two fixed ends, changes the position of dynamic contact on resistance body by active or passive adjustment rotating shaft or slide handle, then changes the resistance value between dynamic contact and any fixed end, thereby changes the size of voltage and current, by measuring output voltage size, the rotating angle of rotating shaft can be indirectly known, to realize the detection of angle;

[0003] However, potentiometer is in contact with the detected object when using, leading to adjustment rotating shaft to drive internal carbon brush and resistance wire long-term rubbing contact, carbon brush is ground flat after a certain period, leading to poor contact, thereby feedback in angle change process appears blind spot, dead angle and other problems, influence the accuracy of wind direction indicator use, even lead to wind direction indicator damage, reduce the service life of wind direction indicator. SUMMARY

[0004] The utility model discloses in order to solve the problem in the background art, and propose a kind of wind direction indicator based on hall angle sensor.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of wind direction indicator based on hall angle sensor, including base, further include:

[0007] Hall angle sensor body: the hall angle sensor body is installed on the top surface of base, the top of the hall angle sensor body is equipped with top cover, main shaft is rotationally equipped in the middle of the top surface of top cover, support is slidably equipped on the main shaft, the one end of the support is equipped with wind direction paddle, and counterweight is threadedly connected to the other end of the support;

[0008] The main shaft top surface middle part is equipped with circular cavity, and the circular cavity is equipped with fixing piece for fixing support.

[0009] Preferably, the fixing piece includes movable rod slidably arranged in the circular cavity and tension spring arranged between the movable rod and the circular cavity, the top surface middle part of the movable rod is equipped with rectangular opening, and the rectangular opening is rotationally equipped with clamping rod in the short shaft.

[0010] Preferably, the depth of the rectangular opening is greater than half the length of the clamping rod.

[0011] Preferably, one end of the bracket is provided with a bolt, and one side of the counterweight is provided with a threaded hole matched with the bolt.

[0012] Preferably, the counterweight is made of stainless steel.

[0013] Therefore, the present application has the advantages that:

[0014] The Hall angle sensor is not in contact with the measured object, so that the damage and interference to the measured object are reduced, and the service life of the wind direction instrument is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 A front view angle structure schematic diagram is shown according to the present application;

[0016] Fig. 2 An explosion view is shown according to the present application;

[0017] Fig. 3 A fixing member structure schematic diagram is shown according to the present application.

[0018] LEGEND:

[0019] 1, base; 2, Hall angle sensor body; 3, top cover; 4, counterweight; 5, bracket; 6, clamping rod; 7, wind direction paddle; 8, bolt; 9, main shaft; 10, short shaft; 11, rectangular opening; 12, movable rod; 13, circular cavity; 14, tension spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-3 The present application provides a technical solution:

[0022] The utility model provides a wind direction indicator based on hall angle sensor, including base 1, the middle part of base 1 top surface is equipped with hall angle sensor body 2 (for prior art), and hall angle sensor body 2 is by hall element, magnetic field source and signal processing circuitry is composed, wherein, magnetic field source is permanent magnet, is used to produce stable magnetic field to excite hall element, and is installed at the bottom of main shaft 9, specific operation is as follows: when magnetic field source is close to hall element, magnetic field makes the direction of electron movement deflection, and the potential difference related with magnetic field intensity and direction is generated on the both sides of element, when magnetic field source rotates around the axis, the change of potential difference is caused by the change of magnetic field direction, can determine the rotation angle by measuring the change of potential difference, at the same time, hall angle sensor body 2 is non-contact measurement, namely need not contact with the measured object, reduces the damage and interference to the measured object, improves the service life of wind direction indicator, and the power supply of hall angle sensor body 2 in the application file is 5-12V, and the output 0-2.5V signal, and the corresponding range is 0.360 °, the top of hall angle sensor body 2 is equipped with top cover 3, the middle part of top cover 3 top surface is equipped with main shaft 9, and the bracket 5 is slidably arranged on the main shaft 9, and the wind direction paddle 7 is arranged at one end of the bracket 5, and the counterweight 4 is threadedly connected at the other end, through the use of counterweight 4, the weight of wind direction paddle 7 is balanced, and wind direction paddle 7 is stably rotated, the middle part of main shaft 9 top surface is equipped with circular cavity 13, and the fixing part for fixing the bracket 5 is arranged in the circular cavity 13, through the use of fixing part, the bracket 5 is quickly installed or removed, so that the wind direction paddle 7 is quickly removed or installed, further facilitating the carrying of wind direction indicator.

[0023] In the utility model, the fixing part includes the movable rod 12 slidably arranged in the circular cavity 13 and the tension spring 14 arranged between the movable rod 12 and the circular cavity 13, through the use of the tension spring 14, the movable rod 12 is conveniently pulled, so that the clamping rod 6 is stably clamped on the bracket 5, and the stability of the installation of the bracket 5 is further improved, the middle part of the top surface of the movable rod 12 is equipped with the rectangular opening 11, the clamping rod 6 is rotatably arranged in the rectangular opening 11 through the short shaft 10, and the depth of the rectangular opening 11 is greater than half the length of the clamping rod 6, so that the rotation of the clamping rod 6 is collinear with the movable rod 12.

[0024] In the utility model, one end of the bracket 5 is equipped with the bolt 8, one side of the counterweight 4 is equipped with the threaded hole matched with the bolt 8, through the mutual use of the threaded hole and the bolt 8, the installation or removal of the counterweight 4 is facilitated, the counterweight 4 is made of stainless steel material, the corrosion resistance of the counterweight 4 is improved, and the service life of the counterweight 4 is further improved.

[0025] Working principle: when the utility model is used, when the wind blows the wind direction paddle 7, the bracket 5 is rotated, and then the rotation of the main shaft 9 is driven, so that the rotation of the magnetic field source at the bottom of the main shaft 9 is driven, and then the rotation angle of the wind direction paddle 7 is measured by the hall angle sensor body 2,

[0026] When the wind vane 7 is disassembled, the clamping rod 6 is pulled upward to drive the movable rod 12 to move upward, then the clamping rod 6 is rotated to be collinear with the rectangular opening 11, then the clamping rod 6 is released, the clamping rod 6 is driven into the circular cavity 13 by the tension spring 14, the fixing of the support 5 is released, and the wind vane 7 is disassembled;

[0027] When the wind vane 7 is installed, the support 5 is inserted through the clamping rod 6 and the main shaft 9, then the clamping rod 6 is pulled to move outside the support 5, finally the clamping rod 6 is rotated to be perpendicular to the movable rod 12, and finally the clamping rod 6 is clamped on the main shaft 9 by the action of the tension spring 14, the support 5 is installed, and the wind vane 7 is installed.

[0028] The above description of the embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will accord with the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A wind vane based on a Hall angle sensor, comprising a base (1), characterized in that, Also include: Hall angle sensor body (2): the Hall angle sensor body (2) is installed on the top surface of the base (1), the top of the Hall angle sensor body (2) is provided with a top cover (3), the top surface of the top cover (3) is rotatably provided with a main shaft (9), the main shaft (9) is slidably provided with a bracket (5), one end of the bracket (5) is provided with a wind direction paddle (7), and the other end is threadedly connected with a counterweight (4); The top surface of the main shaft (9) is provided with a circular cavity (13), and the circular cavity (13) is provided with a fixing member for fixing the bracket (5).

2. A wind direction indicator based on a Hall angle sensor according to claim 1, characterized in that The fixing member includes a movable rod (12) slidably arranged in the circular cavity (13) and a tension spring (14) arranged between the movable rod (12) and the circular cavity (13), the top surface of the movable rod (12) is provided with a rectangular opening (11), and the rectangular opening (11) is rotatably provided with a clamping rod (6) through a short shaft (10).

3. A wind direction indicator based on a Hall angle sensor according to claim 2, characterized in that The depth of the rectangular opening (11) is greater than half the length of the clamping rod (6).

4. The wind direction indicator based on the Hall angle sensor according to claim 1, characterized in that, One end of the bracket (5) is provided with a bolt (8), and one side of the counterweight (4) is provided with a threaded hole matched with the bolt (8).

5. A wind direction indicator based on a Hall angle sensor according to claim 4, characterized in that The counterweight (4) is made of stainless steel.

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