Plant chlorophyll analyzer/handheld chlorophyll analyzer manufacturer

Working principle of plant chlorophyll analyzer ：

/: Wang

Two of themLEDThe light source emits two types of light, one is red light(650nm)One is infrared light(940nm)Two types of light penetrate the blade and hit the receiver. The light signal is converted into an analog signal, which is amplified by an amplifier and then converted into an analog signal/The digital converter converts it into a digital signal, which is processed by a microprocessor and calculatedSPADValue and display on the LCD screen.

SPADCalibration and Calculation of Measurement Values twoLEDSequential light emission, the received light is converted into electrical signals, and the ratio of light intensity is used for calculation.

（2）After clamping the sample with the pressure head, twoLEDOnce again emitting light, the light transmitted through the blades hits the receiver and is converted into an electrical signal, and the intensity ratio of the transmitted light is calculated.

（3）Steps1and2The value is used for calculationSPADThe measured value represents the current relative chlorophyll content of the clamped sample leaves.

/: Wang

Main technical indicators of plant chlorophyll analyzer:

1Measurement range 0.0-100 SPAD

2Measure the area 2mm*2mm

3Measurement accuracy ±1.0 SPADWithin the unit

(At room temperature,SPADValue between0-50)

4Repeatability ±0.3 SPADWithin the unit

(SPADValue between0-50)

5Measurement time interval less than3second

6Data storage medium SDCard storage

7Data storage capacity 2GB

8Power supply 4.2VLi-On rechargeable

9Battery capacity 800mah

10Weight 450g

11. External dimensions 140×85×45mm(long×wide×tall)

12Work and storage environment 0℃-50℃；85%relative humidity

Plant chlorophyll analyzerpurpose

Plant chlorophyll analyzerCan measure the relative chlorophyll content of plants in real-time (unit)SPAD）Or“Green degree'This can help you understand the true nitrate demand of plants and help you understand the degree of soil nitrate deficiency or whether excessive nitrogen fertilizer has been applied. You can use this instrument to increase the utilization rate of nitrogen fertilizer and protect the environment (preventing excessive nitrogen fertilizer from contaminating the environment, especially water sources).

/: Wang