Photosynthetic transpiration meter YT-GH30

Product Introduction

The photosynthesis soil respiration comprehensive measurement system measures the amount of CO2 absorbed (released) by plant leaves over a certain period of time, and simultaneously measures factors such as air temperature and humidity, leaf temperature, light intensity, and leaf area for assimilating CO2. This allows for the direct calculation of photosynthesis indicators such as plant photosynthesis rate, transpiration rate, intercellular CO2 concentration, and stomatal conductance.

Soil respiration is an important process in the carbon cycle of soil ecosystems, resulting from the balance of soil carbon assimilation and assimilation. It is also the main pathway for carbon to return to the atmosphere from terrestrial ecosystems and a representation of life activities in soil. Accurately measuring its release is key to evaluating biological processes in ecosystems; By monitoring soil respiration and its related parameters, the response of roots and soil microorganisms to climate change can be estimated.

This instrument has outstanding advantages such as high sensitivity, rapid response, strong anti-interference ability, easy operation, and the ability to perform live and continuous measurements. Therefore, it is widely used in many fields such as plant physiology, plant biochemistry, ecological environment, and agricultural science.

Measurement method: Open circuit measurement, more reliable measurement data

Measurement items:

Non diffusive infrared CO2 analysis

Blade temperature

Photosynthetically active radiation (PAR)

Leaf chamber temperature

Leaf chamber humidity

Analysis and Calculation:

Leaf photosynthetic rate (Pn)

Leaf transpiration rate (Tr)

Intercellular CO2 concentration (Ci)

Pore conductance (Gs)

Water use efficiency (WUE)

Can increase respiratory rate measurement (Rd)

Technical indicators:

CO2 analysis:

Dual wavelength infrared carbon dioxide analyzer with temperature regulation added, measuring range: 0-3000ppm, resolution: 0.1ppm; Accuracy of 3ppm. Carbon dioxide measurement is not affected by temperature changes, and has stability, high accuracy, and sensitive response. The carbon dioxide difference collection can be completed within 1 second.

Leaf chamber temperature:

German Heraeus high-precision digital temperature sensor, measuring range: -20-80 ℃, resolution: 0.1 ℃, error ± 0.2 ℃

Leaf temperature:

Platinum resistance, measurement range: -20-60 ℃, resolution: 0.1 ℃, error ± 0.2 ℃

Humidity:

Swiss imported high-precision digital humidity sensor:

Measurement range 0-85%, resolution: 0.1%, error ≤ 1%

Photosynthetically active radiation (PAR):

Silicon photovoltaic cell with correction filter

Measurement range: 0-3000 µ mol · m-2 · s-1, accuracy<1 µ mol · m-2 · s-1. Response wavelength range: 400-700nm

Flow measurement: Micro electronic flowmeter, flow rate can be set arbitrarily. Air pump flow rate ≤ 1.5L. Error: 1%, within the range of 0.2-1L/min<± 0.2%, resolution: 0.0001L.

Zero drift: ± 0.005L, the flow rate of the air pump can be set according to needs, and the influence of different gas flow rates on photosynthesis can be measured. The gas flow rate is stable.

Leaf chamber size: standard size 55 × 20mm, other sizes can be customized according to customer needs

Breathing chamber size: diameter 110mm, height 200mm, other sizes of breathing chambers can be customized.

Operating environment: temperature -20 ℃ -60 ℃, relative humidity: 0-85% (no condensation of water vapor)

Power supply: Large capacity DC8.4V rechargeable lithium battery, capable of continuous operation for 12 hours on a single charge (without connecting to an external light source)

Data storage: 16GB of memory, expandable to 32GB

Data transfer: USB connection to computer can directly export data

Display: 3.5 "TFT true color LCD screen color display, resolution 800 × 480, clearly visible under strong light

Button: Six buttons, easy and convenient to operate

Volume: 260 × 260 × 130mm

Weight: Host 3.25kg

Product features of the photosynthesis soil respiration comprehensive measurement system:

Multifunctional: Simultaneously measure photosynthetic rate, transpiration rate, intercellular carbon dioxide concentration, stomatal conductance, and water use efficiency, as well as more than ten indicators such as carbon dioxide concentration, relative humidity, photosynthetically active radiation, air temperature, leaf temperature, soil respiration, etc

Stability: Equipped with a temperature regulated dual wavelength infrared carbon dioxide analyzer, the measurement accuracy of carbon dioxide is not affected by temperature changes, and it has the characteristics of stability, high accuracy, and sensitive response. The carbon dioxide difference collection can be completed within 1 second. The flow rate of the air pump can be set as needed to measure the impact of different gas flow rates on photosynthesis, and the gas flow rate is stable.

Intelligence: Multi information Chinese menu display and cursor guidance operation, instantly displaying and storing the measurement process and final results on the screen

Small size, light weight, portable, single person operation

Widely applicable: equipped with different types of leaf chambers (respiratory reactors), it can be widely used for the determination of different shapes of leaves in various plants such as field crops, fruit trees, vegetables, forests, and grasses, as well as for the respiration of soil, seeds, insects, etc

High cost-effectiveness: Low price, low usage cost, easy maintenance

Optional accessories for the comprehensive measurement system of photosynthesis and soil respiration:

Leaf chamber size: (choose one of them)

Type I: (20 × 20mm)

Type II: (55 × 20mm) standard size

Type III: (55 × 10mm)

Type IV: Round with a diameter of 11.3mm

Other optional accessories

Group assimilation box: Capacity 2L. Other sizes can be customized

Light source: external plug-in LED red and blue light source, adjustable range 0-3000 µ mol · m -2 · s-1. The intensity value can be set by the instrument. Optional red, white, and blue light sources, with red light at 660nm, blue light at 455nm, and high-efficiency white light.

GPS positioning: Comes with GPS positioning function, which can display the latitude and longitude of the measurement location in real time

Soil respirator: diameter 100mm, height 200mm. Other sizes can be customized