| abstract |
Methods of estimating concentration of solids in a slurry comprising solid material, liquid material, and optionally also gaseous material comprise passing a first ultrasonic pulse through a portion of the slurry, measuring amplitude of the first ultrasonic pulse, removing solid material from a portion of the slurry to provide a filtered liquid, passing a second ultrasonic pulse through a portion of the filtered liquid, and measuring amplitude of the second ultrasonic pulse. Measuring devices comprise a measuring device body having a passageway extending therethrough, and a sending transducer which sends ultrasonic pulses and which is mounted on the measuring device body. A system for estimating concentration of solids in a slurry comprises a containment structure defining a space for receiving a portion of the slurry, a containment structure defining a space for receiving a liquid material included in the slurry, and receiving transducers mounted on each of the containment structures. |