Dynamic stomata meter—AP4
Date:2017-04-25 10:49:13
AP4 can quickly and easily measure the stomatal conductivity of plant leaves. It is based on the principle of cyclic diffusion and is measured and calculated by changes in the surface humidity of plant leaves. It can be calibrated quickly on site using a lightweight sample chamber, so it is an ideal stomatal conductivity to measure.degree instrument.
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Main features








1. Directly read out the pore conductivity or resistance
2. Easily and quickly perform on-site calibration to ensure high accuracy and high resolution of the measurement data
3. Minimize the pressure on the blade during measurement
4. Closed leaf chamber to prevent interference to the air hole switch
5. Automatic and fast measurement circuit, temperature compensation measurement results
6. Lightweight, ergonomic design sensor head
7. Large-screen LCD display and full QWERTY keyboard make measurement settings, data acquisition, browsing and storage very convenient
















System composition








1. Host: contains gas circuit system and analysis and computing system;
2. Sensing head: The sensor head includes two leaf chambers, one groove-shaped and the other round.The appropriate leaf chamber can be selected for different shapes of blades, and the sensor head contains a micro-thermal regulator, RH sensor and PAR sensor;

3. Correction disk: A specially cast polypropylene plastic tray with six groups of precise diameter holes, covered with damp filter paper, providing a source of water vapor through the holes at known rates in a diffused manner.
















Technical parameters








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Collection