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Bean seed germinating ability measuring device based on impedance spectrum

A technology of impedance spectrum and measurement device, which is applied in the field of measurement, can solve the problems of seed destruction and inaccurate measurement, and achieve the effect of saving manpower

Active Publication Date: 2011-02-16
农芯(南京)智慧农业研究院有限公司
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Problems solved by technology

[0007] The technical problem to be solved by the present invention is how to overcome defects such as inaccurate measurement and destructiveness to seeds existing in the existing bean seed germination force measurement technology

Method used

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  • Bean seed germinating ability measuring device based on impedance spectrum
  • Bean seed germinating ability measuring device based on impedance spectrum
  • Bean seed germinating ability measuring device based on impedance spectrum

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Embodiment Construction

[0032] The device for measuring the germination force of beans seeds based on impedance spectrum proposed by the present invention is described as follows in conjunction with the accompanying drawings and embodiments.

[0033] First, it is necessary to explain the principle of the present invention. The seed cell is composed of two parts, the cell wall and the protoplast. The protoplast is composed of protoplasts and includes two main electrolytic contents: vacuoles and cytoplasm, which are surrounded by the vacuole membrane and the plasma membrane respectively; the cytoplasm contains a large number of specific membranes Enclosed organelles in which the water-soluble solution within the vacuole mainly contains inorganic ions and organic acids; current passing through the cell membrane creates a potential difference that is maintained by an efficient transport system and selectable osmotic properties of the cell membrane; organelles have different electrical properties; where ,...

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Abstract

The invention provides a bean seed germinating ability measuring device based on an impedance spectrum, comprising a signal generating unit, a clamping unit and an impedance spectrum detecting unit, wherein the signal generating unit is used for outputting excitation signals and reference signals which have the same frequencies, amplitudes and phases in a sweep way; the clamping unit comprises a fixing member and electrodes and is used for outputting and representing impedance detecting signals of impedance characteristic of the seed to be measured under the excitation signal, wherein the fixing member is used for fixing a seed to be measured, and the electrodes are arranged on both sides of the seed to be measured; and the impedance spectrum detecting unit is used for detecting the amplitude ratio and the phase difference between the reference signals with different frequencies in a sweep range and the corresponding impedance detecting signals to obtain the amplitudes and the phases of the impedance detecting signals by calculating the amplitude ratio and the phase difference, thereby generating the impedance distribution curve of the seed to be measured in the sweep range, and then obtaining the germinating ability of the seed to be measured after extracting characteristic parameters. Under the condition of not destroying the seed to be measured, the device rapidly judges the germinating ability of the seed, thereby greatly saving manpower, materials and times.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to a device for measuring the germination force of bean seeds based on impedance spectrum. Background technique [0002] Seed germination ability refers to the ability of seeds to germinate and grow into normal plants under suitable conditions (under laboratory controllable conditions), usually expressed by germination potential and germination rate. Germination potential refers to the percentage of the number of normally germinated seeds in the initial stage of germination test (within the specified date) to the number of tested seeds; seed germination rate refers to the percentage of the number of normal germinated seeds in the final period of germination test (within the specified date) to the number of tested seeds percentage. A high seed germination potential indicates strong seed vigor, neat germination, and uniform emergence in the field; a high seed germination rate in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02A01C1/02G01R23/16
Inventor 侯瑞锋王成潘大宇乔晓军高权
Owner 农芯(南京)智慧农业研究院有限公司
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