Description：
The measuring principle of the fruit/stem sensor uses the distance moved by the displacement sensor to measure the growth length of the plant fruit or plant rhizome. It can be connected to a transmission device to view the growth data of the plant fruit/rhizome remotely in real time, and the data can be viewed anytime and anywhere.
Detail：
1. Motion detector
The growth rate of the fruit is measured by the displacement sensor, which records the growth size of the intact fruit.
2.Aluminum alloy frame
High-quality metal material, sturdy and durable, can easily cope with various occasions, corrosion-resistant and anti-aging.
3.Waterproof shielded cable
The wiring part of the fruit/stem growth sensor adopts high-quality waterproof cable, which has strong anti-interference ability, waterproof and oil-proof, and has a long service life.
4.Product wiring
The stem growth sensor can be connected to various data collectors with differential inputs, data acquisition cards, remote data acquisition modules and other equipment.
Features：
(1)Accurately measure the diameter of the fruit:The fruit stem/growth sensor is a high-precision incremental displacement sensor that measures the expansion speed of the fruit through the displacement sensor, which records the growth size of the whole fruit.
(2)Multi-point monitoring and intelligent record storage:Multi-point measurement can be carried out on measuring plants, supporting data storage and recording function.
(3)Detect the growth of plant stems:Various specifications of sensors are suitable for measuring plants with a diameter of 2～150mm.
(4)edicated to plant science experiment projects:Widely used in plant science experiments and national demonstration projects, suitable for measuring various plant stems without harm to plants.
Application：
Fruit/stem growth sensors are widely used in national scientific research projects, modern farms, meteorological systems, modern agricultural greenhouses, automatic irrigation and other fields of production, life and scientific research.
Technical Parameters：
| Parameter | Parameter content |
|---|---|
| Range | 0-20mm/0-50mm/0-150mm |
| life | >100X106 times |
| Linear accuracy | ±0.3% |
| Resistance error | ±10% |
| Repeatability | 0.01mm |
| Upper limit of operating speed | 3m/s |
| Temperature drift coefficient | 1.5ppm/℃ |
| Allowable voltage | 10VDC/2-5KΩ DC5V/1KΩ |
| Operating temperature | -20℃～+120℃ |
| humidity | ≤90% |
| output signal | RS485/4G/NB-IoT/LoRa |
