Microwave moisture meter or near infrared moisture meter, which is better?

Microwave moisture meter and near-infrared moisture meter are two moisture instruments with different measurement principles, according to the application conditions of different industries, choose the appropriate measurement method, there is no good one, which is bad.

1. Microwave moisture meter.

The MS-590 is a non-contact multi-spectrum microwave moisture and density meter. Using the world's latest multi-spectrum hardware technology and patented algorithm based on fuzzy data analysis, combined with practical data analysis models, moisture content and density can be measured completely independently, without affecting each other. It is currently the world's latest microwave multispectral frequency moisture analyzer.

The microwave sensor emits a microwave signal to the measured medium, the polar molecules of the water molecules in the medium will absorb energy in the electromagnetic field, and the energy absorbed by the water molecules maintains a linear relationship with the content of the water molecules.

Near-infrared moisture meter.

2. MS-580 contact multi-spectrum near-infrared moisture measurement system adopts multi-spectrum near-infrared technology, through a unique patented algorithm and combined with a variety of data models to achieve the best moisture content measurement. When an LED light source is used that emits near-infrared light directly, when irradiated on the surface of the product to be measured, a portion of the near-infrared light is absorbed and the rest of the light is reflected back into the light detector of the measuring instrument. This part of the absorbed light is called the absorption spectrum, which has a linear relationship with the moisture content of the product being measured.

So we can calculate the moisture content in the product by building a mathematical model.

The near-infrared moisture meter is the use of near-infrared spectroscopy method, the use of water molecules to absorb the characteristics of the wavelength of infrared light to measure the moisture of the material, so it can be seen that the near-infrared gouache meter can only measure the moisture on the surface of the material, and when the moisture of the material is too large, has exceeded the maximum water absorption, the water has settled, which is not accurate to measure with the near-infrared moisture meter. In addition, the black color material is used for near-infrared moisture meter measurement, and the accuracy is also relatively poor. It is generally used in papermaking, wood chips, sintering and other industries.

The microwave signal is emitted by the transmitting antenna, and after passing through the material, it is received by the corresponding receiving antenna. By analyzing the microwave signal after passing through the material, the mass fraction of water in the material is derived. However, changes in material density on the production line will also affect the change of microwave signals.

Therefore, it is still necessary to choose the best moisture meter with different principles according to different industries, different working conditions, and different material conditions, in short, if you ask about a company that does not ask about the material situation, does not ask the industry, and does not ask about the actual working conditions, it will tell you that anything can be measured, then be careful! If your peers have not used it or the manufacturer cannot provide a real use case, then ask the manufacturer to bring the goods to try! Enterprises with real production and ability can agree.

1. The infrared moisture analyzer is simple to operate, less time-consuming, and the measurement results are accurate, so the infrared moisture analyzer can be widely used in the experimental analysis and daily purchase control and process detection of chemical, pharmaceutical, food, tobacco, grain and other industries.

2. The microwave moisture analyzer uses the microwave field to dry the sample, accelerates the drying process, has the characteristics of short measurement time, convenient operation, high accuracy and wide range of application, and is suitable for the determination of moisture in granular, powdery and viscous solid samples of grain, papermaking, wood, textiles and chemical products, and can also be applied to the determination of moisture in petroleum, kerosene and other liquid samples.

There are many measurement principles of moisture meter, including infrared, near-infrared, capacitance, conductivity, and microwave principle. The application advantages of MOSYE MS-590** microwave moisture analyzer are mainly manifested in several aspects: 1. Infrared, capacitance, and conductivity principles have certain limitations.

The radioactive source principle introduces a lot of maintenance work and potential hazards. 2. The infrared principle can only measure the humidity of the surface of the material, and the microwave principle can measure the humidity of all materials. 3. The slight change of color will significantly affect the measurement results of the infrared principle, while the microwave principle will not be affected by the color.

4. The measurement result of infrared principle is affected by light intensity, while the microwave principle is not affected by light intensity and color. 5. In the harsh industrial environment, the dust and soil accumulation of the lens measured by the infrared principle will affect the measurement, while the microwave principle will not affect the measurement.

I want to purchase two sets of microwave moisture meter equipment, is there a good manufacturer to recommend? Thank you!

Microwave moisture meters and near-infrared moisture meters are both indirect methods of measuring moisture. **Infrared moisture meter is actually a direct weight loss method used to measure moisture. Near-infrared and microwaves interact with water molecules to determine the amount of water. The infrared water meter directly heats the water to evaporate.

Environmental protection industry: sludge, garbage;

Metallurgical industry: sintered materials, pellet materials;

Coal industry: coal, coke;

Tobacco industry: cigarette packs, sacks, cigarette boxes;

Paper industry: paper bags, cartons;

Grain industry: grain packages, medicine packages, etc.;

Application equipment: belts, rollers, silos.

Application equipment: belts, rollers, silos.

2. Application range of near-infrared moisture meter:

Light industry: laundry detergent;

Tobacco industry: tobacco, stems;

Paper industry: sheet-fed paper, cardboard, paper bags, cartons, etc.;

Timber industry: planks;

Iron and steel industry: sintered materials;

Grain industry: corn, wheat, starch.

1. Manual detection

Drying method – laboratory.

Hand feel visual method - look at the plum.

The interval time is long, the human error is large, and it cannot meet the needs of automatic control.

Contact measurement.

The electrode is in direct contact with the material, and the wear is great.

The measured resistance is greatly influenced by other factors and has poor selectivity for moisture.

Resistance = f(x1, x2, x3 , x1 - material moisture x2 - raw material conductivity (composition, ratio) x3 - thickness of the material layer.

Non-contact measurement.

The sintered mixture contains a large amount of metal ores, which has a shielding effect on microwaves.

Microwave detection cannot be used for sintering mixtures.

Contact measurement – trough installation.

The outer wall of the probe is in contact with the material and is seriously worn.

The material sticks to the probe easily.

The material near the probe flows slowly.

There is a large lag in the measurement.

Physical calibration is complex.

Changes in the crystalline water and hydrocarbon composition of the material can affect the measurement results.

Non-contact measurement – belt conveyor installation.

It is still in the exploratory stage, and the technology is not mature.

The structure is complex and the response time is long.

Poor performance and accuracy.

A radiodensity meter is required.

It is not easy to eliminate the effects of water vapor.

If installed close to the outlet of the mixer, it may bring radiological hazards to workers on site.

Infrared non-contact measurement – can be installed as close to the detection point as possible.

Mature technology, adopted by most foreign factories.

No radioactive hazard.

It is independent of the flow rate of the material and the thickness of the material bed.

It is not sensitive to changes in material composition and proportion.

The response speed is fast, the measurement accuracy is high, and it is convenient to realize the automatic control of the moisture of the mixture.

Simple calibration and easy maintenance.

Microwave moisture meter and near-infrared moisture meter are two commonly used moisture analysis instruments on the market, which are used in the process of moisture detection of industrial and agricultural raw materials, moisture detection in the production process and product quality control. Here, MS-580** near-infrared moisture meter and MS-590** microwave moisture meter are mainly taken as examples to analyze the similarities and differences between the two.

First, the similarities.

Second, the differences.

3. Measure performance. The microwave moisture meter is not affected by the height, size, density, temperature, variety, weight and other factors of the substance, and the near-infrared moisture meter is not affected by the color change of the material, but is easily affected by the substance itself and the surrounding environment.

【Meso-visual】Near-infrared analyzer, tobacco moisture meter.

For more information, please visit: Jiekeshi official website.

**Microwave moisture detector is a non-contact multi-spectrum microwave moisture and density measuring instrument, which adopts the world's latest multi-spectrum hardware technology and patented algorithm based on fuzzy data analysis, and combines with practical data analysis models to achieve completely independent measurement of moisture content and density, without affecting each other, and is currently the world's latest microwave multi-spectrum moisture analyzer. The technical characteristics of the Mosye MS-590 **Microwave moisture detector can be summarized as follows:

1. Non-contact penetrating measurement.

2. It is the only one in the world that is not affected by the height, size, density, temperature, variety, weight and other factors of the measured substance;

3. It is the only one in the world that can accurately measure moisture without height compensation, density compensation and temperature compensation;

5. It has an intelligent self-learning function calibration model, and there is no need to calibrate frequently after a successful calibration;

6. High reliability: without any moving parts and wearing parts, up to 10 years service life;

7. High precision: the highest precision; Wide range ratio: the moisture measurement range is as wide as 0%-100%;

8. It can display the cross-sectional moisture distribution and density distribution of the measured substance, and infer a comprehensive analysis of the moisture content of the measured substance;

9. A variety of communication and control modes are optional, and various industrial communication protocol communication ports and networking methods are supported;

10. Simple automatic control and system integration can be carried out, and it can be matched or docked with other intelligent equipment.

Microwave moisture detector can detect the moisture content in solid, liquid and slurry materials, and is suitable for continuous determination of moisture content in paper mills, carton factories, packaging plants, chemical plants, pharmaceutical plants, coal plants, steel plants, cement plants, food factories, cigarette factories, Ejiao factories, oil refineries, coking plants, power plants, etc.

Non-contact measurement: no wear, no interference, low maintenance;

Fast real-time results: millisecond response speed;

Fully automated operation** automatically check the operating status of each part of the unit;

Humanized operation interface: to meet the different needs of users;

Convenient installation and commissioning: the model can be selected according to the on-site installation environment;

Safe and pollution-free: high safety and reliability, no radioactive nuclear sources;

Technical support and service: provide timely service and detailed technical feedback.