▎ 摘　　要

NOVELTY - Strain sensor array based on negative poisson ratio structure, comprises a flexible packaging layer, a piezoresistive sensitive layer and a flexible substrate layer. The piezoresistive sensitive layer comprises a strain sensing array. The strain sensing array is composed of many sensing units connected with each other. The sensing unit has a negative Poisson ratio property. A flexible electrode is connected with two ends of the strain sensing array. A sensing circuit is connected with the flexible electrode. The sensing circuit is used for transmitting current for the flexible electrode and the strain sensing array. A thin film substrate is adhered to one surface of the strain sensing array. The thin film substrate is used for loading the strain sensing array and the flexible electrode. USE - The sensor array is useful in preparing wear-resistant electronic device (claimed). ADVANTAGE - The sensor array has high sensitivity and large stretching. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of strain sensor array. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of strain sensor array based on negative poisson ratio structure useful in preparing wear-resistant electronic device. Piezoresistive sensitive layer (2) Flexible substrate layer (3)