CN206583789U - A kind of potato tubers rapid determination of water content instrument - Google Patents

A kind of potato tubers rapid determination of water content instrument Download PDF

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Publication number
CN206583789U
CN206583789U CN201720266935.3U CN201720266935U CN206583789U CN 206583789 U CN206583789 U CN 206583789U CN 201720266935 U CN201720266935 U CN 201720266935U CN 206583789 U CN206583789 U CN 206583789U
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CN
China
Prior art keywords
water content
piston
potato tubers
rapid determination
probe
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Expired - Fee Related
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CN201720266935.3U
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Chinese (zh)
Inventor
司怀军
唐勋
张宁
文义凯
刘丹
姚凡
刘霞霞
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Gansu Agricultural University
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Gansu Agricultural University
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Abstract

The utility model provides a kind of potato tubers rapid determination of water content instrument, there is proportional relationship with maximum resistance during crushing using same kind potato tubers relative water content, so as to design it is a kind of potato tubers water content is quickly determined using the device for determining potato ball crushing most resistance, be particularly suitable for use in that field is quick, the measurement of large sample number.

Description

A kind of potato tubers rapid determination of water content instrument
Technical field
The utility model is related to a kind of plant physiology experiment device, and specifically a kind of potato tubers water content is fast Fast analyzer.
Background technology
Plant tissue water content is an index of plant physiology state, such as fruit, how many pairs of vegetables water content its product Matter has an impact, and seed moisture content is more meaningful to safe storage.The principle of vapor is evaporated to using water heat, can be dried with heating Dry method determines the water content in plant tissue.The method for expressing of plant tissue water content, often with fresh weight or the percentage of dry weight Represent, also relative water content is represented sometimes.The latter can more represent its physiological significance.Plant relative water content can be with following Formula is calculated:Relative water content(RWC)=(Fresh weight-oven-dried weight during sampling)/(Fresh weight-dry weight when expanding completely)× 100%。
Material locally resists the ability referred to as hardness that hard thing is pressed into its surface.Solid to external world resist by the local of object invasion Ability, is the soft or hard index of the various materials of comparison.The different method of testing due to defining, so there is different hardness standards. The mechanics implication of various hardness standards is different, mutually can not directly convert, but can be contrasted by experiment.Hardness is divided into:① Scratch hardness.It is mainly used in comparing the soft or hard degree of different minerals, method is the rod for selecting the hard one end in an one end soft, will be measured and monitored the growth of standing timber Material is streaked along rod, and the soft or hard of measured material is determined according to the position for cut occur.Qualitatively say, the cut that hard object is marked is long, The cut that soft object is marked is short.2. penetration hardness.It is mainly used in metal material, method is by defined pressure head with certain load Measured material is pressed into, the soft or hard of measured material is compared with the size of material surface local plastic deformation.Due to pressure head, load and The difference of bearer duration, penetration hardness has a variety of, mainly Brinell hardness, Rockwell hardness, Vickers hardness and microhardness Etc. several.3. sclerometric hardness.It is mainly used in metal material, method is a special hand hammer is impacted from certain altitude free-falling The sample of measured material, and stored with sample in impact process(Then discharge)The number of strain energy(Pass through the rebound of hand hammer Elevation measurement)Determine the hardness of material.
In penetration hardness determination method, it is divided into static load plunging and Dynamic load press-in test method again according to loading loading velocity is different, The latter is also known as elastic resilience method.The general principle of static load plunging is:Using mechanical device by standard indenter under ordinance load Detected materials surface is pressed into, keeps unloading after certain time, then measurement remains in a certain geometric sense of the impression of material surface, Such as the area of indentation, depth of cup or impression catercorner length etc. characterize the soft or hard of material.Obviously, the area of indentation or depth of cup Bigger, material hardness is lower.
Toughness is the ability that wear-resistant object, stretch-proof, resistance to compression enter etc., can also be called the ability of resistance to fracture.In elastoplasticity Under the conditions of, when stress field intensity factor increases to a certain critical value, crackle just unstable propagation and cause Materials Fracture, this is critical Or the stress field intensity factor of unstable propagation is fracture toughness.It reflects material resistance instable growth of crack and resists brittle failure Ability, is the mechanical performance index of material.
The problem of prior art is present:Potato ball had both embodied the hardness of potato ball or embodied during crushing Toughness, has no be converted to relative hydration amount determining device and survey using the measure of the mechanical characteristics such as hardness and toughness in the prior art Determine the report of method.
The content of the invention
In view of the deficiencies in the prior art, the utility model provides a kind of potato tubers rapid determination of water content instrument, profit With same kind potato tubers relative water content(75-100% is interval)There is proportional relationship with maximum resistance during crushing (Maximum resistance is relevant with hardness and toughness during potato ball crushing), so that by measure potato tubers crushing during Maximum resistance, realizes quick measure potato tubers water content.
In order to achieve the above object, the utility model employs following technical scheme:
A kind of potato tubers rapid determination of water content instrument, it includes:Big hydraulic cylinder and one in big hydraulic cylinder Level piston and three-level piston, wherein first stage piston are connected by connecting rod with second piston, and second piston is arranged in small cylinder; Hydraulic oil is full of above first stage piston and below second piston;Hydraulic oil above first stage piston realizes reserve tank by two-way pump Flowed between big hydraulic cylinder;Connection probe below three-level piston, probe lower section is provided with objective table;The big hydraulic pressure inside wall of cylinder is provided with pressure-sensitive Ammeter is provided with resistance, piezo-resistance access constant voltage DC circuit, circuit;The probe side is also equipped with infrared displacement of the lines Detector.
Preferably, the two-way pump uses gear pump, and flow velocity and pump pressure are stable.
Preferably, the ammeter is that digital electronic ammeter being capable of record current value at regular intervals.
Preferably, the prevention of the piezo-resistance is inversely proportional with suffered fluid pressure.
Preferably, the probe is made up of hard materials such as silicon steel.
Preferably, the probe distal end is sphere, and probe diameter has multiple specifications, and wherein 10mm is optimal.
Preferably, the analyzer also includes card punch and swaging clamp.
Preferably, the infrared ray displacement detector can be according to time accurate measuring probe Bottom Runby, and can show Show and shown on device.
Beneficial effect:The utility model is based on relative water content in 100%-75% interval ranges, relative water content and horse On the Research foundation that bell potato wedge crushing maximum resistance is inversely proportional, design a kind of using the device for determining potato ball crushing most resistance It is quick to determine potato tubers water content, it is particularly suitable for use in that field is quick, the measurement of large sample number.
Brief description of the drawings
Fig. 1 is a kind of structural representation of potato tubers rapid determination of water content instrument of the utility model.
Fig. 2 is a kind of potato tubers rapid determination of water content instrument swaging clamp schematic diagram of the utility model.
Fig. 3 is a kind of potato tubers rapid determination of water content instrument card punch schematic diagram of the utility model.
Embodiment
To make the purpose, technical scheme and advantage of utility model clearer, below in conjunction with the accompanying drawings to of the present utility model Embodiment is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in accompanying drawing What the embodiment of the present utility model described with reference to the accompanying drawings was merely exemplary, and the utility model is not limited to these Embodiment.
Here, it should also be noted that, in order to avoid having obscured the utility model because of unnecessary details, in the accompanying drawings It illustrate only and according to scheme of the present utility model closely related structure and/or process step, and it is little to eliminate relation Other details.
Embodiment 1
A kind of potato tubers rapid determination of water content instrument is present embodiments provided, as shown in Figure 1, analyzer includes: Big hydraulic cylinder 5 and first stage piston 4 and three-level piston 8 in big hydraulic cylinder 5, wherein first stage piston 4 pass through connecting rod and two Level piston 6 is connected, and second piston 6 is arranged in small cylinder 7;The top of first stage piston 4 and the lower section of second piston 7 are full of hydraulic oil 3;The hydraulic oil 3 of the top of first stage piston 4 is realized by two-way pump 2 to be flowed between reserve tank 1 and big hydraulic cylinder;The lower section of three-level piston 8 Connection probe 9, the lower section of probe 9 is provided with objective table 11;The big inwall of hydraulic cylinder 5 is provided with piezo-resistance 12, and piezo-resistance 12 accesses perseverance Straightening current circuit;Ammeter 13/14 is provided with circuit, 9 sides of the probe are also equipped with infrared ray displacement detector 16.
Further, the two-way pump 2 uses gear pump, and flow velocity and pump pressure are stable.
Further, the ammeter 13 and 14 is that digital electronic ammeter being capable of record current value at regular intervals.
Further, the prevention of the piezo-resistance 12 is inversely proportional with suffered fluid pressure.
Further, the probe 9 is made up of hard materials such as silicon steel.
Further, 9 front ends of the probe are sphere, and probe diameter has multiple specifications, and wherein 10mm is optimal.
Further, the infrared ray displacement detector 16 can be according to time accurate measuring probe Bottom Runby, and energy Show on a display 15.
As shown in Figures 2 and 3, the analyzer also includes card punch and swaging clamp.
In summary, the utility model embodiment provides a kind of potato tubers rapid determination of water content instrument, utilizes horse Bell potato wedge relative water content is in 100%-75% interval ranges, and relative water content crushes what maximum resistance was directly proportional to potato ball Result of study, designs a kind of device using measure potato ball crushing most resistance and quickly determines potato tubers water content, special Shi Yongyu field be quick, the measurement of large sample number.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should It is considered as the protection domain of the application.

Claims (4)

1. a kind of potato tubers rapid determination of water content instrument, it is characterised in that its structure includes:Big hydraulic cylinder and installed in big First stage piston and three-level piston in hydraulic cylinder, wherein first stage piston are connected by connecting rod with second piston, and second piston is installed In small cylinder;Hydraulic oil is full of above first stage piston and below second piston;Hydraulic oil above first stage piston passes through double Realize and flowed between reserve tank and big hydraulic cylinder to pump;Connection probe below three-level piston, probe lower section is provided with objective table;Big hydraulic pressure The inside wall of cylinder is provided with piezo-resistance, piezo-resistance access constant voltage DC circuit, circuit and is provided with ammeter;Also pacify the probe side Equipped with infrared ray displacement detector.
2. a kind of potato tubers rapid determination of water content instrument according to claim 1, it is characterised in that the two-way pump Using gear pump.
3. a kind of potato tubers rapid determination of water content instrument according to claim 1, it is characterised in that the ammeter Being capable of record current value at regular intervals for digital electronic ammeter.
4. a kind of potato tubers rapid determination of water content instrument according to claim 1, it is characterised in that the probe by Silicon steel is made.
CN201720266935.3U 2017-03-20 2017-03-20 A kind of potato tubers rapid determination of water content instrument Expired - Fee Related CN206583789U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720266935.3U CN206583789U (en) 2017-03-20 2017-03-20 A kind of potato tubers rapid determination of water content instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720266935.3U CN206583789U (en) 2017-03-20 2017-03-20 A kind of potato tubers rapid determination of water content instrument

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108593716A (en) * 2018-06-26 2018-09-28 烟台大学 A kind of device and method of quick measurement solid aqueous rate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108593716A (en) * 2018-06-26 2018-09-28 烟台大学 A kind of device and method of quick measurement solid aqueous rate
CN108593716B (en) * 2018-06-26 2020-04-28 烟台大学 Device and method for rapidly measuring solid water content

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