Yaxin-1161G chlorophyll fluorescence measuring system can measure the kinetic process of chlorophyll fluorescence. It combines the OJIP transients（rapid fluorescence kinetic）and Slow Chlorophyll a fluorescence kinetics measured techniques, greatly facilitates the study of chlorophyll fluorescence. I. Instrument Functions 1. Measurement function: Obtain the rapid fluorescence kinetic curve of OJIP (1 ~ 10 s); Obtaining a pulse transient fluorescence kinetic curve (1-10 minutes); The measured basic parameters are Fo, Fj, Fi, Fm (Fp), Fo', Fm', Fs, Ft and area; 2. Calculation function: The quenching parameters φ ΦPSⅡ ⅱ, qN, qP(NPQ), Y(NO), y (npq); Parameters of photochemical efficiency: Fv/Fm, Fv'/Fm', Fq'/ Fm', Fv, Fv', FQ'; Quantum yield or energy distribution ratio: φPo, ψO, φEo, φ do; Performance index: PIABS, PICS, etc. 3. Display function: Show a fast fluorescence kinetic curve (OJIP curve); Display pulse transient fluorescence kinetic curve; 4. Data function: Data storage: built-in large-capacity data storage; Data deletion and transmission 5. Help function: View simple help information on the screen 6. Software functions: Firmware upgrade function; Upper computer software installation-free Ⅱ. Technical Parameters 1. 1. Light source: LED blue: 470 nm; light intensity range: 0～5000 μmol m-2 s-1; Intensity and timing can be set; LED far-red light: 730 nm, exposure time: 0~20 seconds 2. Data acquisition frequency: 5 μs each time 3. Storage capacity: can store 9999 full OJIP curves or 512 maximum measurement time (10 minutes) of the pulse transient fluorescence kinetics 4. Data transmission: USB 2.0 5. Displays: 320 × 240 dot matrix LCD, Chinese / English operation interfaces electable 6. Power supply: AC power adapter DC 8.4 V 2 A; Rechargeable lithium battery: 8.4 V 7 Ah 7. Weight: 1.0 kg 8. Size: 20×13×15 cm 9. Dark adaptation folder: For most of the leaves of the determination of a suitable location of a larger depth of the leaf leaf folder options
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