Patent ID: 6082180
Filing Date: 2000-07-04
Classification: G01N

Abstract:
An ultrasonic densitometer for process control of a density of a fluid, said ultrasonic densitometer having a wedge material, said wedge material having at least two sides substantially non-parallel, a first non-parallel side having a first ultrasonic transducer mounted thereon and a second non-parallel side immersible into said fluid whereby an ultrasonic signal emanating from said first ultrasonic transducer strikes said second non-parallel side and reflects a reflected ultrasonic signal; the improvement comprising:said wedge material having a third non-parallel side with a second transducer for receiving the reflected ultrasonic signal, said wedge material further having an angle of internal reflection about equal to the zero reflection coefficient angle; anda temperature sensor attached to said wedge material for combining a wedge material temperature with a transducer voltage to confirm temperature uniformity of said wedge material for process control.