The difference between a tubular soil profile moisture tester and a soil moisture detector

The soil detector is divided into a variety of soil pre-treatment soil samplersSoil Vibrating Sieve |Ring knife |Soil sieve|Soil Solution Sampler Soil Nutrients Soil Nutrient Speed Tester |Desktop near-infrared soil nutrient velocity tester|Handheld Soil Nutrient Tachymeter |Nylon sieve|Nitrogen Analyzer |Ion Meter|pH Meter Atomic Absorption Spectrophotometer|Ming hollow cathode lamp|B cylinder|Atomic Absorption Spectrometer|Atomic Fluorophotometer|Mercury Meter |Titrator Gas Chromatograph|Spectrophotometer|Conductivity Meter|Soil Salinity Analyzer Soil Moisture Portable Soil Moisture Calculator|Timing positioning soil moisture speed tester |Portable Soil Moisture Analyzer|GPS Soil Moisture Temperature Rapid Tester Wireless Moisture Monitoring SystemProfile moisture monitoring system|Drying method infrared moisture tester |Soil moisture temperature speed tester |Moisture and drought management system, electric heating constant temperature blast drying ovenSoil Grinder|Moisture aluminum box|Silicone|Dryer Soil Hardness Digital Soil Hardness Tester |Pointer Soil Hardness Tester|Soil Compaction Tester |GPS Soil Compaction Tester What kind of soil compaction are you.

The tubular soil profile moisture tester is large in size and can be placed in the field and land for a long time for uninterrupted measurement.

The soil moisture detector is small and beautiful and easy to carry, and it is a portable and advanced instrument for rapid measurement of soil moisture content.

It is recommended that you use Top Yunnon's.

Soil moisture analyzer (top).

The characteristics of the soil moisture analyzer are as follows:

FDR (FrequencyDomain Reflectometry) is a measure of the apparent permittivity of soil according to the propagation frequency of electromagnetic waves in the medium by using the principle of electromagnetic pulse (so as to obtain the soil volumetric water content (V). The measurement principle, system installation, measurement method and application of FDR system in continuous dynamic monitoring of soil moisture are introduced, and the actual measurement results are corrected, which can be used as a reference for FDR correction. The application practice in the Huangfuchuan River Basin in the semi-arid area shows that FDR has the advantages of simplicity, safety, fast and accurate, fixed-point continuous, automation, wide range and less calibration, and is a recommended soil moisture measurement instrument.

Time Domain Reflector (TDR) is a common principle for rapid detection of soil moisture, which is based on the principle that a waveform is reflected on a mismatched transmission line. The waveform at any point on the transmission line is a superposition of the original waveform and the reflected waveform. The TDR principle has a response time of about 10-20 seconds, making it suitable for mobile measurement and fixed-point monitoring.

The measurement results are not affected by salinity, and the disadvantage of TDR is that the circuit is more complex and the equipment is more expensive.

FDR has almost all the advantages of TDR compared to TDR testing principle, and the probe shape is very flexible. The more exaggerated ones can even be measured in the movement of a tractor made into a plough shape. FDR requires less correction work than TDR.

For many years, it has been difficult to break through the accuracy of the FDR principle of soil moisture meter, which has become a stagnation in the development of FDR soil moisture meter. After years of research, the German company STEPS has finally broken through this difficulty. A soil moisture meter MST3000 based on FDR principle was developed, and the accuracy reached 3%.

The advent of this latest product has been well received by the majority of users in the industry. Its operation is simple, convenient and fast, and more importantly, it has high precision and good stability.

TDR's good accuracy is high, and it can be reached by Jinzhou Sunshine Technology.

In the past, the traditional rapid measurement method was relatively backward and could not accurately measure the moisture information in the soil, but fortunately, the emergence of the soil moisture rapid measurement instrument can analyze soil moisture, rainfall, irrigation, etc., and provide the best environment for crop planting. What's more, the soil moisture speed meter is easy to carry and can monitor soil moisture anytime and anywhere. It mainly has the following advantages:

1. Increase peasant incomes.

With the help of soil moisture speed tester, farmers can carry out scientific and reasonable irrigation of farmland, achieve the correct use of water resources, improve the yield and quality of crops, so as to improve economic benefits and increase farmers' income.

Soil moisture speed tester.

2. Save water resources.

Because the soil moisture tester can accurately measure the soil moisture situation, it can optimize the use of water, fertilizer and energy, and achieve the purpose of saving water and fertilizer. Concentrate water and fertilizer in the roots to avoid leaching losses.

3. Fast and accurate measurement.

We use the soil moisture tester to measure the entire profile and multiple layers of the soil, which is simple and convenient, and only takes tens of seconds to understand the soil moisture situation, which greatly saves the time of measurement, and the measured data also provides a basis for accurate irrigation.

The portable carrying case of the soil moisture speed tester is small in size, simple to operate, and quite convenient.

The automatic soil moisture tester TZS-W has two functions of measuring soil moisture and soil temperature, and the software has the function of storage and printing. The usage is very simple, just look at the software instructions. You can ask Handan Congtai Yimeng Electronics ****, their instrument our unit bought a unit is 5500 yuan. Hope.

Advantages: The operation of the heating moisture analyzer is simple, no other auxiliary reagents are required, only need to participate in the sample, set or call up the temperature control program to check; Because of the rapid heating and energy radiation technology, the moisture in the sample can reach the end of equilibrium in a few minutes to ten minutes, and the power and accuracy are much higher than the traditional drying method of drying the sample in the oven and then weighing it with a balance. Cons:

Some manufacturers have widely published various exaggerated propaganda on the Internet, which makes people feel that this kind of moisture analyzer seems to be able to check anything, and the accuracy is also very high, which is not right. Regardless of which thermal moisture analyzer is the same, but with many constraints, the thermal moisture analyzer cannot completely dry the moisture in the sample; Especially in the heating process will be soft problems.

Soil moisture rapid measurement, generally with display, without recording, soil moisture recorder with display and without display, but both have recording data storage function.

Generally, soil moisture recorders are equipped with computer analysis software because of their functions, but soil moisture is not.

The difference between the soil moisture tachymeter and the soil moisture recorder can also be asked about the soil moisture range that the TZS-1K soil moisture tachymeter can measure: 0-100%, with an absolute error of 2%. The soil moisture speed tester and the probe have consistency, and the probe sockets of different parameters can be interchangeable without affecting the accuracy.

TZS-2Y multi-parameter soil moisture recorder displays the trend of the process curve of each parameter, and the maximum, minimum and average values are displayed to view, zoom in and zoom out, and the functions are clear and clear.

<> USA AT Portable Solid Moisture Analyzer - Mesoscopic.

Soil moisture velocity meter and soil moisture recorder.

Literally, you can distinguish the main difference between the two, the soil moisture speed tester emphasizes the fast, convenient and efficient detection equipment, while the latter emphasizes the recording function, the specific distinction between the two is detailed, log in and query.

Moisture content test range: 0-100%;

Test time: 2 seconds; Absolute error of the test: ;

Relative Percentage Error: ;

Probe Material: Stainless Steel;

Working temperature of moisture probe: -40 -90 family shed;

Moisture probe size: 55mm;

Net weight:; Voltage: 5 12V;

Moisture storage data: 2000 groups;

Standard cable length: 1500mm (can be customized according to customer needs, up to 100 meters). Zen chaos.

Moisture is the main factor determining the dielectric constant of soil, and measuring the dielectric constant of soil can directly and stably reflect the true moisture content of various soils. The most popular field test soil moisture principle in the world--- frequency domain reflection principle (FDR): the instrument emits electromagnetic waves of a certain frequency, the electromagnetic waves are transmitted along the probe, and return after reaching the bottom, and the voltage output of the probe is detected.