Capacitive sensor for filling rate of particles in spiral pipe

• Main Authors: LI YULAN, CHOI SU-YEON, CAI TINGTING, XU LIANGLIANG
• Format: Patent
• Language: Chinese; English
• Published: 09.08.2024
• Subjects: CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PACKING; PERFORMING OPERATIONS; PHYSICS; PNEUMATIC TUBE CONVEYORS; SHOP CONVEYOR SYSTEMS; STORING; TESTING; TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING ORTIPPING; TRANSPORTING

The invention discloses a capacitance sensor for the filling rate of particles in a spiral tube, a screw shaft is coaxially arranged in the spiral tube, spiral blades are uniformly arranged on the screw shaft, the screw shaft is grounded, and a first capacitance plate, a second capacitance plate, a third capacitance plate and a fourth capacitance plate are sequentially arranged along the outer side wall of the spiral tube at equal intervals. Outer shielding covers are arranged on the outer side walls of the first capacitor plate, the second capacitor plate, the third capacitor plate and the fourth capacitor plate, four radial shielding plates are arranged on the inner side walls of the outer shielding covers at equal intervals, and each radial shielding plate is located in the gap between every two adjacent capacitor plates. The first capacitor plate, the second capacitor plate, the third capacitor plate, the fourth capacitor plate, the outer shielding case and the spiral tube are concentrically arranged, and