Description
High resolution density meters that operate based on oscillating U-tube method allow a cost-effective operation with low wastage of samples. The oscillating U-tube is a technique to determine the density of liquids and gases based on an electronic measurement of the frequency of oscillation, from which the density value is calculated. This measuring principle is based on the Mass-Spring Model. Modern density meters usually have integrated Peltier thermostat that maintains constant temperature of the sample or at least a thermocouple to record its temperature.