The PTM-48A Monitor is truly state-of-the-art system for long-term automatic recording physiological characteristics of intact plants. The Monitor has four inputs for original automatic self-clamping leaf chambers. The chamber is normally open and shuts the leaf only for 30 seconds to take readings of both CO 2 and H 2 O exchange rates. The ...

PTM-48A最强大的功能是：专为长期连续监测而设计，监测时间可长达数周，可实现植物光合速率、生理指标和环境因子的同步连续监测。 特殊的自动开合式叶室，可将叶室关闭对叶片生长的影响降到最低。 目前平台PTM-48A拥有4个5cm直径的圆形叶室（LC-4B 叶室），2个叶温传感器（LT-LC）和4个茎流传感器（SF-5P）和一个RTH-48传感器，测量样本未有5cm直径那么大的叶片，可把样本面积测量出来，在仪器软件上手动校准调整进行测量。 已针对草莓、玉米、大豆和黄 …

ptm-48a 是一台光合仪， 但它不是一台普通的光合仪 。 它专为长期连续监测而设计， 监测时间可长达数周 。 特殊的自动开合式叶室，可将叶室关闭对叶片生长的影响降到最低。

The PTM-48M Photosynthesis Monitor is a four-channel automated system for monitoring CO2 exchange and transpiration of leaves. The system is equipped with a set of four original self-clamping leaf chambers, which operate one-by-one in such a manner that one of leaf chambers is closed at a time while the others remain open.

The PTM-48A Photosynthesis Monitor is truly state-of-the-art system for long-term automatic recording all but most measurable physiological characteristics of intact plants. The PTM-48A of 5000 Series is a fully automatic smart instrument: the ON/OFF switch is the only manual control.

PTM-48A植物光合生理及环境监测系统具备4个自动开合的叶室，叶室平时处于打开位置，不影响叶片的自然生长状态；测量时叶室闭合，读取叶片的CO2、H2O交换速率，闭合时间只有30秒，最大程度减少对叶片的扰动。 标准LC-4B透光叶室测量叶片面积为20cm2。 最新的LC-4D暗叶室可以研究光照变化对叶片光合的影响。 如果LC-4B透光叶室和LC-4D暗叶室配合使用，则可研究植物的光呼吸、暗呼吸、总光合、净光合。 如果配合LT-LC叶温传感器，还可得到叶片的气孔导度数 …

2023年11月22日 · PTM-48A进口植物光合生理及环境监测系统具备4个自动开合的叶室，叶室平时处于打开位置，不影响叶片的自然生长状态；测量时叶室闭合，读取叶片的CO2、H2O交换速率，闭合时间只有30秒，zui大程度减少对叶片的扰动。

Built-in RTH-48 Meter for measuring Photosynthetic Radiation, Air Temperature, Relative Humidity and Leaf Wetness. Has input for the digital SMTE Soil Moisture, Temperature and EC sensor. Number of analog inputs for optional sensors 8

PTM-48A植物光合生理及环境监测系统可实现植物光合速率、生理指标和环境因子的同步连续监测，用于反应各种环境因子的变化对植物光合作用及其生理指标的影响。

The PTM-48A Photosynthesis Monitor is a truly state-of-the-art system for long-term automatic recording all but most measurable physiological characteristics of intact plants. The Monitor has many optional accessories for providing various measurements.