Moisture meter
AssigneeA&D Company, Limited
InventorKazuma Funahashi
Life of this patent
Estimating the term…
Abstract
Provided is a heat-drying moisture meter that presents reliability with respect to a measurement result. In order to solve the above problem, a moisture meter includes a mass sensor configured to measure the mass of a sample placed on a weighing dish, a heating chamber having the weighing dish placed inside, a heating unit configured to heat the heating chamber, and an arithmetic control unit configured to calculate the moisture content of the sample from a sample mass before heat-drying and a sample mass after heat-drying by controlling the heating unit. The arithmetic control unit presents the reliability of the moisture content based on the minimum indication of the mass sensor.
Claims4
A moisture meter comprising:
- a mass sensor configured to measure a mass of a sample placed on a weighing dish;
- a heating chamber having the weighing dish inside;
- a heating unit configured to heat the heating chamber;
- an arithmetic control unit configured to calculate a moisture content of the sample from a sample mass W before heat-drying and a sample mass D after heat-drying by controlling the heating unit;
- and
- a display,
- wherein the arithmetic control unit is further configured to display on the display information indicative of a reliability of the calculated moisture content based on a minimum weight indicatable by the mass sensor and displayable by the display,
- wherein the reliability information represents an influence of an error per one count of the minimum weight indicatable by the mass sensor on the moisture content, and
- wherein the arithmetic control unit is configured to access a storage unit including a reliability determination table divided stepwise with a threshold of a multiple of the minimum weight indicatable by the mass sensor into a plurality of regions, apply a difference W−D between the sample mass before heat-drying and the sample mass after heat-drying to the regions, and display that the reliability decreases as numerical values of the regions to which the difference is applied decrease.
Dependencies are inferred from the claim text.