In situ polymerized polypyrrole/halloysite nanotubes-silver nanoflowers based wearable pressure sensor with large measurement range and high sensitivity

2021 ◽  
Author(s):  
Chen Du ◽  
Yong Zhang ◽  
Dongzhi Zhang ◽  
Bao Zhang ◽  
Wenhao Zhao
Keyword(s):  
Wearable Sensors ◽  
High Sensitivity ◽  
Halloysite Nanotubes ◽  
Measurement Range ◽  
Activity Detection ◽  
Electronic Skin ◽  
Large Measurement ◽  
Wearable Medical ◽  
Human Activity Detection

Flexible wearable sensors have attracted a lot of attention because of their great potential for applications in wearable medical health detection, human activity detection, and artificial electronic skin. However, achieving...

scholarly journals Ultra-Sensitive Flexible Tactile Sensor Based on Graphene Film

Micromachines ◽  
2019 ◽  
Vol 10 (11) ◽  
pp. 730 ◽  
Author(s):  
Xiaozhou Lü ◽  
Liang Qi ◽  
Hanlun Hu ◽  
Xiaoping Li ◽  
Guanghui Bai ◽  
...  
Keyword(s):  
Industrial Robot ◽  
Graphene Film ◽  
High Sensitivity ◽  
Tactile Sensor ◽  
Measurement Range ◽  
Tactile Sensors ◽  
Piezoresistive Effect ◽  
Large Measurement ◽  
Pet Film ◽  
Maximum Measurement

Flexible tactile sensor can be integrated into artificial skin and applied in industrial robot and biomedical engineering. However, the presented tactile sensors still have challenge in increasing sensitivity to expand the sensor’s application. Aiming at this problem, this paper presents an ultra-sensitive flexible tactile sensor. The sensor is based on piezoresistive effect of graphene film and is composed of upper substrate (PDMS bump with a size of 5 mm × 7 mm and a thickness of 1 mm), medial Graphene/PET film (Graphene/PET film with a size of 5 mm × 7 mm, PET with a hardness of 2H) and lower substrate (PI with fabricated electrodes). We presented the structure and reduced the principle of the sensor. We also fabricated several sample devices of the sensor and carried out experiment to test the performance. The results show that the sensor performed an ultra high sensitivity of 10.80/kPa at the range of 0–4 kPa and have a large measurement range up to 600 kPa. The sensor has 4 orders of magnitude between minimum resolution and maximum measurement range which have great advantage compared with state of the art. The sensor is expected to have great application prospect in robot and biomedical.

Compact optical roll-angle sensor with large measurement range and high sensitivity

2005 ◽  
Vol 30 (3) ◽  
pp. 242 ◽  
Author(s):  
Shiguang Li ◽  
Changxi Yang ◽  
Enyao Zhang ◽  
Guofan Jin
Keyword(s):  
High Sensitivity ◽  
Measurement Range ◽  
Roll Angle ◽  
Angle Sensor ◽  
Large Measurement

Optimum Design of a Dual-Range Force Sensor for Achieving High Sensitivity, Broad Bandwidth, and Large Measurement Range

2015 ◽  
Vol 15 (2) ◽  
pp. 1114-1123 ◽  
Author(s):  
Jun Jiang ◽  
Weihai Chen ◽  
Jingmeng Liu ◽  
Wenjie Chen ◽  
Jianbin Zhang
Keyword(s):  
Optimum Design ◽  
High Sensitivity ◽  
Force Sensor ◽  
Measurement Range ◽  
Broad Bandwidth ◽  
Large Measurement ◽  
Range Force

TO SEPARATELY ASSESS THE DIAGNOSTIC POTENTIAL OF TVS & MRI IN THE TERMS OF SENSITIVITY AND SPECIFICITY BY CORRELATING THE IMAGING FINDINGS WITH HISTOPATHOLOGY

2020 ◽  
Vol 4 (6) ◽  
Author(s):  
Suraj Mathur
Keyword(s):  
Transvaginal Ultrasound ◽  
High Sensitivity ◽  
Imaging Evaluation ◽  
Medical College ◽  
Conventional Mri ◽  
Diagnostic Potential ◽  
Adc Mapping ◽  
Malignant Lesions ◽  
Sensitivity Specificity

This prospective study was done in the Department of Radio diagnosis Govt. Medical College, Kozhikode. A total of 65 patients who were referred to our department with clinical suspicion of endometrial lesions and incidentally detected endometrial lesions on ultrasonography underwent transvaginal ultrasound and subsequent Imaging evaluation of pelvis MRI has very high sensitivity (95%) and specificity (98%) and is almost as accurate (97%) as histopathology in differentiating benign from malignant lesions. Addition of DWI with ADC mapping to conventional MRI increases its accuracy even more. However there is inherent limitation to MRI in detecting carcinoma in situ and micrometastasis. Keywords: TVS, MRI, Sensitivity, Specificity, Histopathology.

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