The present disclosure provides methods and apparatus for determining the water content of a fresh concrete mixture. Additionally, the present disclosure provides methods and apparatus for determining the water to binder ratio for a fresh concrete mixture.

Methods and systems for correction of water content measurements include determining an apparent water content measurement of a sample material while the sample material is dried in ambient vapor pressure conditions, determining a correction value that represents a relationship between the apparent water content and the vapor pressure, and correcting the apparent water content measurement based on the correction value. These methods and systems can reduce cost, measurement time, and error in water content measurement for products that lose water over time, such as while being dried or cured.

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.

The invention relates to a rapid method for estimating the dry matter content of a fruit or vegetable. The method comprises drying a sample of the fruit or vegetable on a support and measuring the dry matter content, wherein the whole method can be carried out in less than 2 hours. This compares to the industry standard method for assessing dry matter in horticultural products which typically takes 6-48 hours.

Systems and methods include testing the weight and water activity of a product at different times and using those measurements to track changes in the water content/water weight and non-water content/non-water weight in the product. These can be useful to detect anomalous activities or batches of processed product, such as when portions of a product are being stolen or improperly altered or wasted. Plant operators can track properties of a product as the product undergoes processing to detect stages and areas in which problems occur and can thereby improve plant and operator efficiency.

A thermo-gravimetric analysis system includes a chamber having an interior; and a sample crucible connected to and inside of the chamber, the sample crucible configured to hold a sample material. The system further includes a reference crucible connected to and inside of the chamber; and a metal organic framework (MOF) crucible connected to and inside of the chamber, separate from the sample crucible, the MOF crucible including an MOF material.

The present disclosure provides methods and apparatus for determining the water content of a fresh concrete mixture. Additionally, the present disclosure provides methods and apparatus for determining the water to binder ratio for a fresh concrete mixture.

The present invention relates to a device for measuring the amount of moisture generated in a livestock shelter flooring material and can measure the amount of moisture generated in a flooring material according to the temperature, relative humidity, wind velocity, and flooring material moisture content conditions inside a livestock shelter.

A high precision weighing system and weighing method has a weighing plate and weighing unit separation mechanism and a weight loading mechanism. The weighing plate and weighing unit separation mechanism controls separation of a weighing plate and a weighing unit, so that the weighing plate or the weighing plate and its carried material do not apply force to the weighing unit. The weight loading mechanism loads a weight onto the weighing unit or removes a weight from the weighing unit; the weighing system records a weighing value of the weighing unit during the action of the weighing plate and weighing unit separation mechanism and a sensitivity value during the action of the weight loading mechanism. The weighing system modifies the weighing value at the time of the most recent combination of the weighing plate and the weighing unit based on the recorded weighing and sensitivity values, achieving a high precision.

A testing device, a testing method, and a design method for a rotary pressure filter. The device includes a stabilizer tank; a buffer tank connected to the stabilizer tank; a filter frame disposed beneath the buffer tank, and connected to the buffer tank; a liquid receiving tank disposed beneath the filter frame; an electronic balance disposed at bottom of the liquid receiving tank; and a seconds counter. The testing method includes adding a certain calculated amount of testing slurry into the filter frame, introducing a gas with a certain pressure into the stabilizer tank, filling the filter frame through the buffer tank, opening a valve at bottom of the filter frame, measuring a mass of the expelled filtrate expelled from the filter frame, measuring time of the filtering process, sampling and analyzing the filter cake and the expelled filtrate according to actual needs; and perform cleaning and drying processes sequentially.