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LAT-B Plant leaf -&- Air Temperature Sensor (Plant Broadleaf type)

发布时间:2024-05-17


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榛叶LAT-B型温度传感器

The LAT-B(Broadleaf leaf -&- Air Temperature) is a high-precision sensor for long-term monitoring of leaf surface and ambient air temperature. The absolute air temperature (Tair) is measured by a tiny, high-precision thermistor probe, while the temperature difference between the air and the blade surface (T) is obtained by a thin thermopile (10x). Multiple measurement sites distributed on the blade surface are in direct contact with the blade surface and generate a spatially integrated temperature signal. LAT-B is specifically designed to measure the surface temperature of broad leaves and can be fixed to the leaves by means of an ultra-light carbon frame.

 

技术参数

 

名称

LAT-B   : -&-空气温度传感器(阔叶型) (*)

适用叶片尺寸和安装位置

叶面叶片长度>3-20cm

传感器测量范围

-      温差电堆 (T叶片-空气)

-    热敏电阻 (Tair)

 

DT = +/- 20°C

Tair = -40  125°C

精度

-      温差电堆 (T叶片-空气)

-    热敏电阻 (Tair)

 

CR1000:   +/-(0.06%*读数+0.01°C) CR1000: +/- 0.2 °C

分辨率

-      温差电堆 (T叶片-空气)

-      热敏电阻 (Tair)

 

理论上无限,主要取决于数采 (例如CR1000 0.0025°C)

 

理论上无限,主要取决于数采 (例如CR1000 0.05°C)

规格

2 cm x 2 cm x 0.1 cm, ca. 2 g

信号输出

-      温差电堆 (T叶片-空气)

-    热敏电阻 (Tair)

 

DT 范围为+/- 20°信号输出范围为± 8.5 mV

使用桥接电路时电阻(Ω)或者电压(mV)输出 (标配中包含桥接电路和20   kΩ 电阻)

电源

-      温差电堆 (T叶片-空气)

-    热敏电阻 (Tair)

 

要求

通常为2500 mV激发电压

工作环境

温度: -25 70 °C, 空气湿度: 0100%

 

Measurement data

image.png 

Absolute temperature (Tair), blade-air temperature difference (DT), and solar radiation (PPFD) distribution of a mature European beech tree at the Krylansburg Forest (TUM) experimental site near Munich.