Dual-mode rapid detection system and method for moisture in dry powder for fruits and vegetables

A detection system and dry powder technology, applied in the direction of using microwaves to test moisture content, etc., can solve the problems of undiscovered patent documents and inaccurate detection results, and achieve long-term storage and quality, accurate transmission, and long-term storage Effect

CN109540927AInactive Publication Date: 2019-03-29TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-03-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a dual-mode rapid detection system for moisture in dry powder for fruits and vegetables, which is characterized in that: a power supply is connected to a microwave dielectricoscillator; the microwave dielectric oscillator is connected to a microwave signal amplifier; a microwave signal amplifier is connected to a material room; one end of a microwave signal receiver is connected to the material room, and the other end is connected to a detector; the detector is connected to an operational amplifier; the operational amplifier is connected to a voltmeter; the voltmeteris connected to a control unit; a volume-weight instrument is mounted at the bottom of the material room; and the volume-weight instrument is connected to the control unit through a data line. The invention also relates to a dual-mode rapid detection method for moisture in dry powder for fruits and vegetables, which comprises the following steps: 1) performing pretreatment of the material; 2) adding fruit and vegetable powder; 3) collecting signals; 4) processing signals; and 5) completing the detection. The invention has scientific and reasonable design and adopts the dual-mode detection modeof microwave detection and bulk density detection to improve the accuracy of moisture detection, thereby ensuring long-term storage and quality of the fruit and vegetable powder.
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Description

technical field

[0001] The invention belongs to the technical field of drying, and relates to moisture detection of dried fruit and vegetable powder, in particular to a dual-mode quick detection system and method for moisture of dried fruit and vegetable powder. Background technique

[0002] Fresh fruits and vegetables have high moisture content and are prone to rot and deterioration. After the fresh fruits and vegetables are dried and processed into vegetable powder, the water content is reduced, which can prolong the storage period and reduce storage, transportation, packaging and other costs. At the same time, as food accessories, dried fruit and vegetable powder can be added to infant food, dairy products, and baked foods to improve food flavor, color, and nutritional value, thereby increasing the added value of the product. Therefore, in the process of food processing, the application of fresh fruits and vegetables into fruit and vegetable powder is very extensive. ...

Examples

Embodiment Construction

[0024] The present invention will be further described in detail below through the specific examples, the following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention with this.

[0025] A dual-mode rapid moisture detection system for dried fruit and vegetable powder, which is innovative in that it includes a microwave signal transmitting unit, a material bin, a microwave signal receiving unit, a volumetric device, and a control unit. The microwave signal transmitting unit includes a power supply, a microwave dielectric oscillator and Microwave signal amplifier, the power supply is connected to the microwave dielectric oscillator, the microwave dielectric oscillator is connected to the microwave signal amplifier, and the microwave signal amplifier is connected to the material bin; the microwave signal receiving unit includes a microwave signal receiver, a detector, an operational amplifier and a voltmeter, and the micro...