CS650時域法土壤含水量

參考價	面議

參考價

面議

具體成交價以合同協(xié)議為準(zhǔn)

公司名稱南京優(yōu)佰達科技有限公司
品牌
型號
所在地南京市
廠商性質(zhì)其他
更新時間2024/11/25 20:59:19
訪問次數(shù)

在線詢價收藏產(chǎn)品點擊查看電話

聯(lián)系我們時請說明是興旺寶上看到的信息，謝謝!

產(chǎn)品詳情

CS650 是多參數(shù)智能傳感器，可以監(jiān)測土壤體積含水量、容積電導(dǎo)率和土壤溫度。它的信號輸出方式為SDI-12，可用于大多數(shù)的 Campbell Scientific 數(shù)據(jù)采集器。如果采用到ET107蒸散站的話請選用CS650-LC。

產(chǎn)品特點：

1.更精確的土壤含水量測量，容積電導(dǎo)率可達 3 dS m-1，無需實施特定土壤校準(zhǔn)

2.更大的采集體積，減少了誤差

3.對土壤質(zhì)地和電導(dǎo)率的影響進行測量修正

4.估算很多種礦質(zhì)土類型土壤中的含水量

5.多功能的傳感器 — 可測量介電常數(shù)、容積電導(dǎo)率（EC）和土壤溫度

技術(shù)說明：

CS650含有連接到印刷電路板的2根30 cm長的不銹鋼探針。電路板用環(huán)氧樹脂封裝，附著在電路板的帶屏蔽線纜提供與數(shù)據(jù)采集器的連接。

CS650測量傳輸時間、信號衰減和溫度；再從這些原始測量值解析得到介電常數(shù)、體積含水量和容積電導(dǎo)率。

測量的信號衰減是用于反射檢測的損失效應(yīng)及傳播時間的修正。損失效應(yīng)修正可以讓探頭在容積電導(dǎo)率 ≤3 dS m-1 的土壤中，測量出高精度的體積含水量，并不需要實施特定的土壤校準(zhǔn)。

由衰減測量還可以計算得到土壤容積電導(dǎo)率?？拷h(huán)氧樹脂表面的與探針保持熱接觸的熱敏電阻用來測量溫度。如果傳感器水平安裝，可以得到與土壤含水量測量相同深度的精確溫度測量。如果以其它的方位安裝傳感器，那么溫度測量只能代表環(huán)氧樹脂附近探針的區(qū)域。

Measurements Made	Soil electrical conductivity (EC), relative dielectric permittivity, volumetric water content (VWC), soil temperature
Required Equipment	Measurement system
Soil Suitability	Long rods with large sensing volume (> 6 L) are suitable for soils with low to moderate electrical conductivity.
Sensing Volume（探測體積）	7800 cm3 (~7.5 cm radius around each probe rod and 4.5 cm beyond the end of the rods)
Electromagnetic	CE compliant (Meets EN61326 requirements for protection against electrostatic discharge and surge.)
Operating Temperature Range	-50° to +70°C
Sensor Output	SDI-12; serial RS-232
Warm-up Time	3 s
Measurement Time	3 ms to measure; 600 ms to complete SDI-12 command
Power Supply Requirements	6 to 18 Vdc (Must be able to supply 45 mA @ 12 Vdc.)
Maximum Cable Length	610 m (2000 ft) combined length for up to 25 sensors connected to the same data logger control port
Rod Spacing	32 mm (1.3 in.)
Ingress Protection Rating	IP68
Rod Diameter	3.2 mm (0.13 in.)
Rod Length	300 mm (11.8 in.)
Probe Head Dimensions	85 x 63 x 18 mm (3.3 x 2.5 x 0.7 in.)
Cable Weight	35 g per m (0.38 oz per ft)
Probe Weight	280 g (9.9 oz) without cable
Electrical Conductivity電導(dǎo)率
Range for Solution EC	0 to 3 dS/m
Range for Bulk EC	0 to 3 dS/m
Accuracy	±(5% of reading + 0.05 dS/m)
Precision	0.5% of BEC
Relative Dielectric Permittivity相對介電常數(shù)
Range	1 to 81
Accuracy	· ±(2% of reading + 0.6) from 1 to 40 for solution EC ≤ 3 dS/m · ±1.4 (from 40 to 81 for solution EC ≤ 1 dS/m)
Precision	< 0.02
Volumetric Water Content體積含水量
Range	0 to 99% (with M4 command)
Water Content Accuracy	· ±1% (with soil-specific calibration) where solution · ±3% (typical with factory VWC model) where solution EC < 3 dS/m
Precision	< 0.05%
Soil Temperature
Range		-50° to +70°C
Resolution		0.001°C
Accuracy		· ±0.1°C (for typical soil temperatures [0 to 40°C] when probe body is buried in soil) · ±0.5°C (for full temperature range)
Precision		±0.02°C