Laser heat pulse-based plant stem flow and transpiration water consumption detection device

A detection device and plant stem technology, applied in the field of plant stem flow and transpiration water consumption detection devices based on laser thermal pulses, can solve problems affecting the accuracy of measurement results, burning stems, affecting measurement results, etc., to avoid interference and error, easy installation and maintenance, and good controllability

Inactive Publication Date: 2012-08-15
ZHEJIANG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: 1) it is necessary to punch holes in the stem of the plant so as to put the heat source and detection device; it changes the stem flow state of the plant itself; 2) it is easy to make the heater and the probe unable to Good alignment, thus affecting the measurement results; 3) The heating process may cause the xylem to lose activity, thus affecting the accuracy of the measurement results
Third: The existing products are mainly suitable for woody plants such as fruit forests. There is a problem of burning the stems of herbaceous plants. Due to the limitation of resolution, this problem cannot be solved by reducing the heating amount; in addition, imported products are expensive

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Laser heat pulse-based plant stem flow and transpiration water consumption detection device
  • Laser heat pulse-based plant stem flow and transpiration water consumption detection device
  • Laser heat pulse-based plant stem flow and transpiration water consumption detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will be further described below in conjunction with drawings and embodiments.

[0025] Such as figure 1 Shown, the present invention comprises high-power laser 1, two infrared thermometers 10,11, electronic balance 8, USB data acquisition card 12, PC computer 13, two lenses 3,4 and diaphragm 2; The flower pot 7 is sealed with a sealed bag 6 and placed on an electronic balance 8. The laser light of the high-power laser 1 is irradiated by the diaphragm 2, the first lens 3 and the second lens 4, and the light is collected on the stem of the plant 5 to be measured. On the heating point, the high-power laser 1, the aperture 2, the first lens 3 and the second lens 4 are coaxially installed on the bracket 9, the first infrared thermometer 10 is arranged on the heating point, and the second infrared thermometer 11 is arranged on the upper side (1cm-2cm) of the heating point, and the USB data acquisition card 12 is connected with two infrared thermometers,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a laser heat pulse-based plant stem flow and transpiration water consumption detection device. A flowerpot of a plant to be detected is sealed and then placed on an electronic balance; the laser is converged to a heating point of the stem of the plant to be detected by irradiation of a diaphragm and two lenses; one infrared thermometer is arranged on the heating point, andthe other infrared thermometer is arranged on the upper side of the heating point; and a universal serial bus (USB) data acquisition card is connected with the two infrared thermometers, a high-powerlaser device and a personal computer (PC) respectively. The influence on the physiology of the plant is greatly reduced by adopting a noncontact laser heat pulse heat generator and the noncontact infrared thermometers, and the laser has better controllability on time and space, so the measured result can reflect the physiological feature of the plant; because the laser is coupled to the heating point by the adjustment of the lenses, the device is more convenient for installation and maintenance compared with optical fibers; and by adopting the electronic balance for displaying the transpiration water consumption of the plant in real time, a mathematical model between the plant stem flow rate and the transpiration water consumption is established more conveniently.

Description

technical field [0001] The invention relates to a plant stem flow and transpiration water consumption detection device, in particular to a plant stem flow and transpiration water consumption detection device based on laser thermal pulses. Background technique [0002] The growth of plants is inseparable from water. Water circulates in plants-atmosphere-soil. On the one hand, it ensures the life activities of plants and maintains the balance and development of ecology. On the other hand, it is also the result of life activities. [0003] my country is a large agricultural country with very scarce water resources, and agricultural water consumption accounts for 70% of the total water consumption. Therefore, under the premise of ensuring stable and high agricultural production, we should vigorously develop water-saving irrigation to achieve rational use of water resources, and change abundant water and high production into economical. High water yield is a very urgent and import...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/704
Inventor 王剑平张付杰盖玲
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products