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所属单位：机电学院

发表刊物：SENSORS AND ACTUATORS A-PHYSICAL

关键字：Tactile sensor Hardness measurement Biological tissue Resonant frequency shift Minimally invasive surgery

摘要：This paper presents a novel tactile sensor for measuring hardness of soft tissue in minimally invasive surgery (MIS). The proposed tactile sensor consists of a piezoelectric ceramic plate, a spiral metal plate and a probe. The resonant frequency of the sensor shifts when the sensor contact with a tissue. For restricting the impact brought by the effective mass of the tissue, the spiral metal plate is designed to reduce the resonant frequency of the sensor. Another feature of this sensor is that only one piece of lead zirconate titanate (PZT) is used as both actuator and sensing element. So the structure of the sensor is very simple which can be easily miniaturized and is suitable for MIS. The finite element analyses are carried out to verify the feasibility of the sensor and compare with the experimental results. Several silicone samples are used to test the performance of the sensor and the results show the ability of the sensor to measure hardness of soft tissue and detect lumps inside tissue. (C) 2017 Elsevier B.V. All rights reserved.

ISSN号：0924-4247

是否译文：否

发表时间：2017-10-15

合写作者：鞠锋,Cao, Yanfei,F70206490,陈柏

通讯作者：张蕾,陈柏