The triangular lifting wedge sensor and the integrated multivariable intelligent triangular wedge flowmeter are new flow meters researched, developed, and produced by our company. Due to its unique three body wedge block (also known as triangular wedge sensor) structure design, it has overcome the flow measurement difficulties of various high viscosity liquid media such as tar, asphalt, residual oil, paraffin oil, and easy to crystallize nanooil in coking, refining, chemical and other enterprises.