Gravimetric moisture measurement instrument

一种测量设备、分析法的技术，应用在通过除去某种组分称量、测量装置、分析材料等方向，能够解决使用者错误、昂贵、耗费劳动力等问题

Inactive Publication Date: 2008-01-09
METTLER TOLEDO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach is labor intensive, prone to user error, and expensive

Method used

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  • Gravimetric moisture measurement instrument
  • Gravimetric moisture measurement instrument
  • Gravimetric moisture measurement instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] FIG. 1 shows a sectional view of a measuring device 10 . The measuring device 10 has a housing 20 in which a test chamber 30 is arranged. The housing 20 is divided into a movable housing part 22 and a stationary housing part 21 . Arranged in the stationary housing part 21 are a weighing cell 43 , a calibration weight handling mechanism 44 and at least one electronic module 45 , all of which are connected to each other by communication means 51 . Electronics module 45 includes at least one signal processing module, which is not shown in detail and which can also be a control module and / or a regulation module. The weighing cell 43 has at least a stationary part 46 and a load receiving part 47 . Known types of weighing cells are, for example, elastically deformable bodies carrying strain gauges, or weighing cells based on the principle of electromagnetic force compensation, or weighing cells with oscillating strings, capacitive load cells, etc. unit. The stationary par...

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PUM

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Abstract

A measuring instrument for gravimetric moisture determination of a sample has a radiator, a weighing cell, and a sample receiver which can be connected to the weighing cell. The sample receiver allows the sample to be placed on or removed from the sample receiver. The radiator is positioned either above or below the sample, or both above and below, relative to the load direction of the weighing cell. A rotatably mounted heat conductor whose axis of rotation is orthogonal to the plane in which the sample or the sample receiver extends is positioned between the radiator and the sample. The heat conductor absorbs at least part of the radiation that impinges upon it and releases the absorbed radiation to the sample through at least one radiation-releasing surface. Through its ability to rotate, the heat conductor irradiates the entire sample surface.

Description

technical field [0001] The invention relates to a measuring device for determining the moisture content gravimetrically. Background technique [0002] In order to determine the moisture content in the sample, the sample is dried and the weight of the sample is measured before and after the drying process. Due to the large amount of work involved, this approach is expensive and prone to errors. [0003] In some cases, weight loss can also be measured during drying. In a given sample, the weight loss is a function of temperature, length of drying time, and conditions in the test chamber, and it fits a curve representing sample weight as a function of elapsed time, which gradually Approximate dry weight of the sample. The curve for a given sample is determined by comparative experiments and can be expressed mathematically by an approximate formula. Measuring equipment for determining the moisture content by gravimetric analysis, suitably equipped with available electronic t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
CPCG01G19/52G01N5/045G01G19/00
Inventor P·鲁辛格
Owner METTLER TOLEDO INC
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