Chlorophyll measuring device

Abstract

The chlorophyll measuring device comprises a measuring instrument main body, a clamping piece, a first elastic assembly and a second elastic assembly. The measuring instrument main body comprises a first measuring part and a first pivoting part. The clamping piece comprises a second measuring part, a second pivoting part and a pressing part. The pressing part is arranged to be pressed by applying force. And the second pivoting part is elastically pivoted with the first pivoting part through the first elastic component. One of the first measuring part and the second measuring part is provided with a photosensitive element, the other one of the first measuring part and the second measuring part is provided with a light-emitting element, and the second elastic component is arranged on one side, facing the clamping piece, of the measuring instrument main body or arranged on one side, facing the measuring instrument main body, of the clamping piece.

Description

Technical Field

[0001] The present invention relates to a chlorophyll measuring device, and more particularly to a chlorophyll measuring device capable of fixing the clamping force. Background Art

[0002] Currently, the prior art has documented a chlorophyll meter that measures by manual pressing, which measures the chlorophyll content in an object to be measured (such as a plant) by clamping the object to be measured between a light-emitting diode (LED) component of a fixture and a light-receiving component sensor.

[0003] Specifically, in the Chinese utility model patent application CN205879766U, a leaf clamping device with an integrated elastic member having a U-shaped cross-section is disclosed, which has a light-emitting end and a receiving end. The light-emitting end can emit red and infrared light sources, and the receiving end can have a photosensitive sensor. A black sealing gasket is provided around the light-transmitting windows of the light-emitting end and the receiving end, and the chlorophyll content is measured by manually pressing the leaf clamp. In the Chinese utility model patent application CN203587493U, a dark-adapted leaf clamping device for fleshy leaves is disclosed, which has a high-density sponge ring, and the high-density sponge ring is black. In the Chinese invention patent application CN115356296A, a portable non-destructive detection device for leaf chlorophyll a and b content is disclosed, including a leaf detection module, a clamping seat, a pressing plate, a control switch, a light source assembly and a light intensity sensor, and the light source assembly can emit light sources of three wavelengths. After pressing the pressing plate, the non-destructive detection device can measure the chlorophyll content and remove the influence of ambient light through the pressing plate.

[0004] In addition, the Chinese utility model patent application CN203376269U discloses a chlorophyll meter for garden engineering, which includes a camera bracket made of a bendable material, which can be bent to allow the camera to take pictures from multiple angles. Next, the Chinese invention patent application CN115266601A discloses a device for detecting the chlorophyll content in living plant leaves, which includes a distance measurement module, which includes at least one distance measurement sensor for collecting distance data between the leaf to be measured.

[0005] However, due to the manual clamping structure, the measurement result will be affected by the different finger pressures, resulting in unstable measurement accuracy. In addition, since most users are right-handed, most of the chlorophyll meters currently available on the market are designed to suit right-handed users, which also causes inconvenience to left-handed users. Therefore, the technical field of the present invention is in urgent need of a chlorophyll measuring device that can clamp the object to be measured (such as leaves) with a fixed force to reduce the measurement error caused by human operation, is suitable for use by left-handed and right-handed users, and reduces surface damage to the object to be measured. Summary of the invention

[0006] In view of the above problems, in order to solve the problems of the existing chlorophyll measuring device, the present invention provides a chlorophyll measuring device, which can reduce the measurement error caused by human operation.

[0007] The present invention provides a chlorophyll measuring device, comprising: a measuring instrument body and a clamping member, a first elastic component and a second elastic component. The measuring instrument body comprises a first measuring portion and a first pivoting portion. The clamping member comprises a second measuring portion, a second pivoting portion and a pressing portion. The pressing portion is configured for applying force and pressing. The second pivoting portion is elastically pivoted to the first pivoting portion through the first elastic component. One of the first measuring portion and the second measuring portion has a light-emitting element, and the other has a photosensitive element. The second elastic component is disposed on a side of the measuring instrument body facing the clamping member or on a side of the clamping member facing the measuring instrument body.

[0008] In a preferred embodiment, the measuring instrument body further includes a measurement start switch disposed between the first pivoting portion and the first measuring portion.

[0009] In a preferred embodiment, the measuring instrument body further includes a stop block, and when the pressing portion is not subjected to external force, the first measuring portion and the second measuring portion have a first spacing in the vertical direction, and the first spacing is limited by the height of the stop block.

[0010] In a preferred embodiment, when the pressing portion is not subjected to external force, the chlorophyll measuring device is in a closed state, and the photosensitive element and the light emitting element have a first distance in the vertical direction, and the pressing portion is parallel to the first measuring portion. When the pressing portion is pressed by force, the chlorophyll measuring device is in an open state, and the photosensitive element and the light emitting element have a second distance in the vertical direction, and the second distance is greater than the first distance.

[0011] In a preferred embodiment, the second elastic component is disposed around the outer side of the photosensitive element or the light-emitting element, and the second elastic component is tilted outward in a horizontal direction to be in the shape of a suction cup.

[0012] In a preferred embodiment, the first elastic component further includes a first extension portion and a second extension portion, the first extension portion is arranged on the measuring instrument body, the second extension portion is arranged on the clamping member, the clamping member is located in the middle position of the chlorophyll measuring device, and the chlorophyll measuring device has a basically symmetrical shape.

[0013] In a preferred embodiment, the chlorophyll measuring device is used to measure an object to be measured. When the object to be measured is located between the first measuring part and the second measuring part, and the chlorophyll measuring device is in the closed state, the second elastic component is arranged around the object to be measured to prevent the object to be measured from slipping out from between the first measuring part and the second measuring part.

[0014] In a preferred embodiment, when the object to be measured is located between the first measuring part and the second measuring part, and the chlorophyll measuring device is in the closed state, when the object to be measured exceeds the range that can be surrounded by the second elastic component, the second elastic component can be deformed along the shape of the object to be measured to shield external light.

[0015] In a preferred embodiment, the measuring instrument body further includes: a display for displaying the measurement result.

[0016] In a preferred embodiment, the measuring instrument body further includes: at least one port or at least one communication component for connecting to an external device via wire or wirelessly.

[0017] In a preferred embodiment, the clamp further includes: a distance measuring component, disposed on the second measuring portion, for measuring the distance between the distance measuring component and the object to be measured.

[0018] In a preferred embodiment, the measuring instrument body further comprises: a camera unit for photographing or recording the object to be measured;

[0019] In a preferred embodiment, the measuring instrument body further includes: a recording unit for recording sound.

[0020] Compared with the prior art, the chlorophyll measuring device of the present invention can be easy to operate, and through the mechanism design between the clamping member and the measuring instrument body of the present invention, the measurement error caused by different grip or pressure during human operation can be reduced. At the same time, because the clamping member is set at a substantially middle position of the entire chlorophyll measuring device, it can be used by both left and right-handed people.

[0021] The chlorophyll device of the present invention is easy to operate for the user, and the clamping mechanism design between the clamping member and the measuring instrument body reduces the measurement error caused by different forces applied to the object to be measured due to different grip or pressure during human operation. At the same time, the clamping member is set at a substantially middle position of the entire chlorophyll measuring device, so it can be used by both left and right-handed people. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A three-dimensional schematic diagram of a chlorophyll measuring device provided by an embodiment of the present invention.

[0023] Figure 2 A partial three-dimensional cross-sectional schematic diagram of a chlorophyll measuring device in a closed state provided by an embodiment of the present invention.

[0024] Figure 3 Another partial three-dimensional cross-sectional schematic diagram of the chlorophyll measuring device in a closed state provided by an embodiment of the present invention.

[0025] Figure 4 A partial three-dimensional cross-sectional schematic diagram of a chlorophyll measuring device provided by an embodiment of the present invention in an open state.

[0026] Figure 5 Another partial three-dimensional cross-sectional schematic diagram of the chlorophyll measuring device provided by one embodiment of the present invention in an open state. DETAILED DESCRIPTION

[0027] In order to further understand the features, technical means, and specific functions and purposes of the present invention, more specific embodiments are listed and described in detail with drawings and figure numbers as follows.

[0028] The following descriptions of the embodiments are made with reference to the attached drawings to illustrate specific embodiments in which the present invention may be implemented. The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "top", "bottom", "horizontal", "vertical", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, rather than to limit the present invention. For the convenience of description, the proportions and relative positions in the drawings of the present invention may be exaggerated or may not be exactly the same as in the actual implementation. The contents of the drawings are only examples and are not intended to limit the present invention.

[0029] See also Figure 1 , and refer to Figure 2 and Figure 4 As shown, Figure 1 A three-dimensional schematic diagram of a chlorophyll measuring device provided by an embodiment of the present invention; Figure 2A partial three-dimensional cross-sectional schematic diagram of a chlorophyll measuring device in a closed state provided by an embodiment of the present invention; Figure 4 A partial three-dimensional cross-sectional schematic diagram of a chlorophyll measuring device provided by an embodiment of the present invention in an open state. The present invention provides a chlorophyll measuring device 10, comprising: a measuring instrument body 100, a clamping member 200, a first elastic component 103 and a second elastic component 203. The measuring instrument body 100 comprises a first measuring portion 101 and a first pivoting portion 102. The first measuring portion 101 has a photosensitive element 1011. The clamping member 200 comprises a second measuring portion 201, a second pivoting portion 202 and a pressing portion 204. The second pivoting portion 202 is elastically pivoted with the first pivoting portion 102 through the first elastic component 103, and the pressing portion 204 is configured for applying force and pressing. The second measuring portion 201 has a light emitting element 2011, and the second elastic component 203 is disposed around the outer side of the light emitting element 2011.

[0030] Specifically, the light-emitting element 2011 may include at least one light-emitting diode (LED) component, and the light-emitting element 2011 may emit light of different wavelengths through different LED components for measuring the object to be measured (e.g., leaves, not shown in the figure), the aforementioned wavelength may be a visible light wavelength, an infrared light wavelength, an ultraviolet light wavelength, etc., the present invention is not limited thereto, and may be adjusted according to actual needs. The photosensitive element 1011 may be a photosensor or a light-dependent resistor (LDR), which is used to sense the wavelength and intensity attenuation of the light source emitted by the light-emitting element 2011 after passing through the object to be measured, so as to achieve the purpose of measuring the chlorophyll content.

[0031] In one embodiment, the clamp 200 may further include a distance measuring component 2012, which is disposed on the second measuring portion 201, for measuring the distance between the distance measuring component 2012 and the object to be measured. The distance measuring component 2012 may be disposed adjacent to or spaced apart from the light emitting element 2011, but the present invention is not limited thereto. It is worth mentioning that in the embodiments and drawings of the present invention, the light emitting element 2011 (and / or the distance measuring component 2012) is disposed on the clamp 200, and the photosensitive element 1011 is disposed on the measuring instrument body 100, but in other embodiments, the positions of the light emitting element 2011 (and / or the distance measuring component 2012) and the photosensitive element 1011 may also be swapped with each other, so that the photosensitive element 1011 is disposed on the clamp 200, and the light emitting element 2011 (and / or the distance measuring component 2012) is disposed on the measuring instrument body 100.

[0032] In one embodiment, the measuring instrument body 100 may further include a battery B (eg Figure 2 ), a receiving groove R, a display S, a measurement start switch SW2 and a power switch SW1. The battery B is used to provide the electric energy required by the chlorophyll measuring device 10, the receiving groove R is used to accommodate the pressing portion 204 when the pressing portion 204 is pressed down, the display S is used to display the measurement result, and the measurement start switch SW2 and the power switch SW1 are used to start the measurement and turn on or off the overall power supply of the chlorophyll measuring device 10 respectively. The measurement start switch SW2 is disposed between the first pivot portion 102 and the first measuring portion 101, so that the user can better operate the aforementioned switch while grasping the chlorophyll measuring device 10. In other embodiments, the measurement start switch SW2 and the power switch SW1 can also be disposed at other positions of the measuring instrument body 10, and the present invention is not limited thereto.

[0033] In one embodiment, the measuring instrument body 100 may include a processing unit (not shown in the figure). For example, the processing unit may include a processor (such as a CPU), a controller and / or a substrate (such as a Printed Circuit Board, PCB) for processing measured data and electrical signals. The measuring instrument body 100 may further include a recording unit and / or a camera unit (not shown in the figure) for providing recording during measurement, or taking photos or videos of the object to be measured. In addition, the measuring instrument body 100 may include at least one port and / or at least one communication component (not shown in the figure) for wired and / or wireless connection and transmitting data to an external device. The at least one communication component may be a The present invention is not limited to the network or other communication protocols. Figures 2 to 4 As shown, the measuring instrument body 100 and the clamping member 200 can be further electrically connected through an electric wire E, so that the aforementioned components in the measuring instrument body 100 and the clamping member 200 are electrically connected to each other. In addition, in the embodiment of the present invention, the aforementioned display, the at least one port, the at least one communication component, the distance measuring component 2012, the camera unit and the recording unit can be selected, that is, the chlorophyll measuring device 10 of the present invention can include at least one of the aforementioned components, and the present invention is not limited thereto.

[0034] It is worth mentioning that the clamping member 200 is substantially located in the middle of the chlorophyll measuring device 10, and the chlorophyll measuring device 10 has a substantially symmetrical shape. Thus, the chlorophyll measuring device 10 can be used by both left- and right-handed users without the need for special design changes for users with different handedness.

[0035] See also Figure 3 and Figure 5 , see also Figure 1 , Figure 2 and Figure 4 As shown, Figure 3 Another partial three-dimensional cross-sectional schematic diagram of the chlorophyll measuring device provided by one embodiment of the present invention in a closed state; Figure 5 Another partial three-dimensional cross-sectional schematic diagram of a chlorophyll measuring device in an open state provided by an embodiment of the present invention. The chlorophyll measuring device 10 of the present invention can be in a closed state and an open state, and the details are as follows:

[0036] When no external force is applied to the pressing portion 204, the photosensitive element 1011 of the first measuring portion 101 and the light emitting element 2011 of the second measuring portion 201 have a first distance D1 in the vertical direction, and the chlorophyll measuring device 10 is in the closed state, and in the closed state, the pressing portion 204 is parallel to the first measuring portion 101. When the pressing portion 204 is pressed by force, the photosensitive element 1011 of the first measuring portion 101 and the light emitting element 2011 of the second measuring portion 201 have a second distance D2 in the vertical direction, and the chlorophyll measuring device 10 is in the open state.

[0037] That is, the first distance D1 is smaller than the second distance D2. In one embodiment, the measuring instrument body 100 further includes a stopper 104. When the pressing portion 204 is not subjected to an external force, the first distance D1 is limited by the height of the stopper 104. Specifically, the stopper 104 limits the second measuring portion 201 and the second elastic component 203 from falling in the vertical direction in the closed state, thereby preventing the second measuring portion 201 from excessively pressing the object to be measured due to the elastic force of the first elastic component 103. The provision of the stopper 104 helps to limit the degree of clamping of the second measuring portion 201 and the second elastic component 203 in the closed state. When measuring a relatively fragile object to be measured (e.g., a thinner leaf or a leaf that is more easily broken), the object to be measured can be clamped more delicately and accurately without damaging the object to be measured itself. There is no need to avoid larger leaf veins, and relatively fragile objects to be measured can be effectively measured. That is to say, no matter whether there is the object to be measured between the second measuring part 201 of the clamp 200 and the first measuring part 101 of the measuring instrument body 100, the first distance D1 will be formed when balanced, thereby avoiding the need for manual force application when clamping the object to be measured, resulting in uneven force application and affecting the measurement result.

[0038] In one embodiment, the first elastic component 103 may be composed of at least one spring, that is, the first elastic component 103 may be separable or have more than one substructure, as long as it can be elastically pivoted to the measuring instrument body 100, that is, the clamping member 200. The first elastic component 103 may also be composed of other elastic bodies, and the present invention is not limited thereto. Figure 2 and Figure 4 As shown, the first elastic component 103 may further include a first extension portion 1031 and a second extension portion 1032, wherein the first extension portion 1031 is disposed on the measuring instrument body 100, and the second extension portion 1032 is disposed on the clamping member 200. In this embodiment, the first elastic component 103 may include a spring as shown in the figure and the first extension portion 1031 and the second extension portion 1032 formed by extension.

[0039] In one embodiment, the second elastic component 203 may be made of rubber, sponge, high molecular polymer or other elastomer. Since the second elastic component 203 needs to frequently contact the object to be measured and the more precise components located in the first measuring part 101 and the second measuring part 201, the material hardness of the second elastic component 203 is less than the material hardness of the first elastic component 103. In the embodiment of the present invention, the second elastic component 203 may be a black high molecular polymer, such as Figure 5 As shown, the second elastic component 203 can be annular in shape, slightly warped outward in the horizontal direction to resemble a suction cup, and arranged around the light-emitting element 2011, but the present invention does not limit the degree of warping or specific appearance of the second elastic component 203, as long as it is arranged around the light-emitting element 2011.

[0040] In one embodiment, when the object to be measured is located between the first measuring part 101 and the second measuring part 201, and the chlorophyll measuring device 10 is in the closed state, the second elastic component 203 is disposed around the object to be measured to prevent the object from slipping out of between the first measuring part 101 and the second measuring part 201. Figure 3 As shown, when in a closed state, the object to be measured will be confined in a closed space formed between the second measuring part 201, the second elastic component 203 and the first measuring part 101, and surrounded by the second elastic component 203, thereby preventing the object to be measured from escaping from the measuring range. In addition, since the second elastic component 203 can completely seal and block external light, it is helpful to measure the chlorophyll content more accurately.

[0041] In another embodiment, when the object to be measured is located between the first measuring part 101 and the second measuring part 201, and the chlorophyll measuring device 10 is in the closed state, when the object to be measured exceeds the range that the second elastic component 203 can surround, the second elastic component 203 can be deformed along the shape of the object to be measured to shield external light. In actual application, the size of the object to be measured may not be able to be completely surrounded by the second elastic component 203, but due to the elasticity of the second elastic component 203, the second elastic component 203 can be deformed along the shape of the object to be measured, and also form a quasi-closed state and block external light, which helps to ensure relatively accurate measurement of the chlorophyll content.

[0042] In actual application, the user can hold the chlorophyll measuring device 10 of the present invention and press the pressing portion 204 to make the chlorophyll measuring device 10 present the open state, and align the second measuring portion 201 of the clamping member 200 with the first measuring portion 101 of the measuring instrument body 100 to the object to be measured, and then release the pressed pressing portion 204 to make the chlorophyll measuring device 10 present the closed state to clamp the object to be measured, for example, clamp it in a thickness direction of a plant leaf to measure its chlorophyll content.

[0043] Thus, the chlorophyll measuring device 10 of the present invention is easy to operate for the user, and the clamping mechanism design between the clamping member 200 and the measuring instrument body 100 reduces the measurement error caused by different forces applied to the object to be measured due to different gripping or pressing forces during human operation. At the same time, the clamping member 200 is set at a substantially middle position of the chlorophyll measuring device 10 as a whole, so it can be used by both left and right-handed people.

[0044] The above are only preferred embodiments of the present invention. It should be pointed out that for those with ordinary knowledge in the technical field to which the present invention belongs, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A chlorophyll measuring device, characterized in that: include: The measuring instrument body comprises a first measuring part, a first pivoting part, and a stop block; The clamping member includes a second measuring portion, a second pivoting portion, and a pressing portion, wherein the pressing portion is configured to apply force and press; a first elastic component; and a second elastic component; The second pivoting portion is elastically pivoted to the first pivoting portion through the first elastic component; Wherein, one of the first measuring part and the second measuring part has a photosensitive element, and the other one has a light emitting element; The second elastic component is arranged on a side of the measuring instrument body facing the clamping member or on a side of the clamping member facing the measuring instrument body.

2. The chlorophyll measuring device according to claim 1, characterized in that: The measuring instrument body further comprises: The measurement start switch is disposed between the first pivoting portion and the first measuring portion.

3. The chlorophyll measuring device according to claim 1, characterized in that: When no external force is applied to the pressing portion, the first measuring portion and the second measuring portion have a first distance in the vertical direction, and the first distance is defined by the height of the stop block.

4. The chlorophyll measuring device according to claim 1, characterized in that: When no external force is applied to the pressing portion, the chlorophyll measuring device is in a closed state, the first measuring portion and the second measuring portion have a first distance in the vertical direction, and the pressing portion is parallel to the first measuring portion; When the pressing portion is pressed, the chlorophyll measuring device is in an open state, and the first measuring portion and the second measuring portion have a second spacing in the vertical direction, and the second spacing is greater than the first spacing.

5. The chlorophyll measuring device according to any one of claims 1 to 4, characterized in that: The second elastic component is disposed around the outer side of the photosensitive element or the light-emitting element, and the second elastic component is tilted outward in a horizontal direction to be in the shape of a suction cup.

6. The chlorophyll measuring device according to any one of claims 1 to 4, characterized in that: The first elastic component further includes a first extension portion and a second extension portion, the first extension portion is arranged on the measuring instrument body, and the second extension portion is arranged on the clamping member; the clamping member is located in the middle position of the chlorophyll measuring device, and the chlorophyll measuring device has a substantially symmetrical shape.

7. The chlorophyll measuring device according to claim 4, characterized in that: The device is used for measuring an object to be measured, wherein when the object to be measured is located between the first measuring part and the second measuring part, and the chlorophyll measuring device is in the closed state, the second elastic component is arranged around the object to be measured to prevent the object to be measured from sliding away from between the first measuring part and the second measuring part; when the object to be measured exceeds the range that can be surrounded by the second elastic component, the second elastic component can be deformed along the shape of the object to be measured to shield external light.

8. The chlorophyll measuring device according to any one of claims 1 to 4, characterized in that: The measuring instrument body further includes at least one of the following components: A display for displaying the measurement results; At least one port or at least one communication component for connecting to an external device via wire or wirelessly; A distance measuring component, disposed in one of the first measuring part or the second measuring part, for measuring the distance between the distance measuring component and the object to be measured; A camera unit, used to photograph or record the object to be tested; and Recording unit, used to record sound.

9. The chlorophyll measuring device according to claim 2 or 3, characterized in that: It is used to measure an object to be measured, wherein, When no external force is applied to the pressing portion, the chlorophyll measuring device is in a closed state, the first measuring portion and the second measuring portion have a first distance in the vertical direction, and the pressing portion is parallel to the first measuring portion; When the pressing portion is pressed, the chlorophyll measuring device is in an open state, and the first measuring portion and the second measuring portion have a second distance in the vertical direction, and the second distance is greater than the first distance. When the object to be measured is located between the first measuring part and the second measuring part, and the chlorophyll measuring device is in the closed state, the second elastic component is arranged around the object to be measured to prevent the object to be measured from sliding away from between the first measuring part and the second measuring part; when the object to be measured exceeds the range that can be surrounded by the second elastic component, the second elastic component can be deformed along the shape of the object to be measured to shield external light.

10. The chlorophyll measuring device according to claim 8, characterized in that: It is used for measuring an object to be measured, wherein the stop block is arranged to limit the size of the closing interval between the second measuring part and the second elastic component.

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