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Wood moisture content detection method using wood core temperature compensation

A technology of temperature compensation and detection method, applied in the direction of material resistance, etc., can solve problems such as large error and difficult to meet process requirements, and achieve the effect of improving accuracy, improving detection accuracy and ensuring quality

Inactive Publication Date: 2014-05-28
NORTHEAST FORESTRY UNIVERSITY
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Problems solved by technology

[0003] In order to solve the problem that when the wood drying kiln adopts the resistance method to measure the moisture content of wood at multiple points in the kiln, only one point of ambient temperature is used for temperature compensation of wood moisture content, and the error is large and it is difficult to meet the technical requirements of the wood drying process. The invention provides a Wood moisture content detection method using core temperature compensation

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  • Wood moisture content detection method using wood core temperature compensation
  • Wood moisture content detection method using wood core temperature compensation
  • Wood moisture content detection method using wood core temperature compensation

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Embodiment Construction

[0016] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0017] Such as Figure 7 As shown, the wood moisture content detection method adopting material core temperature compensation of the present invention comprises the following steps:

[0018] First, six detection points in the spatial distribution of the wood drying kiln are selected, and the selection of the detection points follows the direction of the top view ( Figure 5 ) and the vertical direction ( Figure 6 ) are arranged in sequence, showing front, middle, rear and high, middle and low position distribution; and each detection point is equippe...

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Abstract

The invention provides a wood moisture content detection method using wood core temperature compensation, which belongs to the wood processing field. To overcome the problems that usage of ambient temperature of only one point for wood moisture content temperature compensation leads to great errors and is difficult to meet process requirements of drying in measurement of multipoint moisture content of wood in a wood drying kiln by using a resistivity method, the method provided by the invention adopts the following steps: 1, selecting six wood moisture content detection points in a wood drying kiln and arranging a temperature sensor and a wood moisture content sensor at each test point; 2, detecting wood core moisture content of a board by using two probes of the wood moisture content sensor at each test point and detecting wood core temperature of the board by using the temperature sensors; and 3, respectively carrying out temperature compensation of moisture content of the board on detection points based on corresponding wood core temperature detected by each corresponding temperature sensor. According to the method, wood core moisture content values of the board are compensated by wood core temperature, so detection precision of wood moisture content can be effectively improved, and wood processing quality is guaranteed.

Description

technical field [0001] The invention belongs to the field of wood processing and relates to a wood moisture content detection method using wood core temperature compensation. Background technique [0002] Wood moisture content (MC) is an important technical index in the process of wood drying. As a controlled variable in the wood drying process, the moisture content of wood is not only the premise to realize the automatic control of the whole process of wood drying, but also an important drying benchmark in the wood drying process. Usually in the wood drying process, the moisture content of the wood is used as the evaluation standard, and the moisture content of the dried wood is used to control the drying process to avoid excessive drying or insufficient drying, thereby reducing unnecessary losses and reducing energy consumption and working hours in the drying process. The resistance method is the most widely used in the detection of wood moisture content. To measure the ...

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Application Information

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IPC IPC(8): G01N27/12
Inventor 孙丽萍曹军陈广元张冬妍姜滨
Owner NORTHEAST FORESTRY UNIVERSITY
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