Variable density points pressure sensor with wide sensing range and spatial pressure mapping
Wearable flexible pressure sensors are a novel class of human activity detection device. However, the preparation of pressure sensors with high sensitivity and wide sensing range still faces great challenges. This study reveals an flexible heat-resistant variable density point pressure sensing array...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-09-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127523006251 |
| _version_ | 1797671477400567808 |
|---|---|
| author | Lu Chen Bao Shi Xinying Liu Sainan Wei Ge Fang Ruosi Yan |
| author_facet | Lu Chen Bao Shi Xinying Liu Sainan Wei Ge Fang Ruosi Yan |
| author_sort | Lu Chen |
| collection | DOAJ |
| description | Wearable flexible pressure sensors are a novel class of human activity detection device. However, the preparation of pressure sensors with high sensitivity and wide sensing range still faces great challenges. This study reveals an flexible heat-resistant variable density point pressure sensing array (PSA) with ultra-wide sensing range based on Ti3C2Tx-MXene. MXene containing polar oxygen-containing functional groups coated polyester fiber fabricated the pressure sensing layer while a stainless steel wire core is used as a flexible electrode for signal collection. The signal processing device rapidly converts the mechanical signal into electrical signal output to increase the transmission speed and range. Experimental results show that the PSA can effectively sense dynamic and static pressures with high sensitivity (0.14–0.87 kPa−1 over a pressure range of 7.2 Pa–2000 kPa), a wide sensing range (0–15000 kPa), fast response time (80 ms), 10,000 cycles (2000 kPa) stability and maintains a 81.25% current response. The noval fully woven structural flexible PSA exhibited larger area, of which the weave density is varied to control resolution and the pressure mapping is referenced to each pixel point to qualitatively and quantitatively analyze shape and pressure distribution. Variable density points pressure sensor with wide sensing range and spatial pressure mappinghas promising applications in healthcare. |
| first_indexed | 2024-03-11T21:16:06Z |
| format | Article |
| id | doaj.art-942ff5389de7415d92bc5d873ee4e564 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-03-11T21:16:06Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-942ff5389de7415d92bc5d873ee4e5642023-09-29T04:43:23ZengElsevierMaterials & Design0264-12752023-09-01233112210Variable density points pressure sensor with wide sensing range and spatial pressure mappingLu Chen0Bao Shi1Xinying Liu2Sainan Wei3Ge Fang4Ruosi Yan5Hebei University of Science and Technology, Hebei Technology Innovation Center of Textile and Garment, Shijiazhuang, ChinaHebei University of Science and Technology, Hebei Technology Innovation Center of Textile and Garment, Shijiazhuang, China; Institute for Catalysis and Energy Solutions, University of South Africa, c/o Christiaan de Wet & Pioneer, Florida 1709, Roodepoort, Gauteng, South Africa; Corresponding authors at: Hebei Technology Innovation Center of Textile and Garment, School of Textile and Garment, Hebei University of Science and Technology, Shijiazhuang, China (B. Shi).Institute for Catalysis and Energy Solutions, University of South Africa, c/o Christiaan de Wet & Pioneer, Florida 1709, Roodepoort, Gauteng, South AfricaHebei University of Science and Technology, Hebei Technology Innovation Center of Textile and Garment, Shijiazhuang, ChinaHebei Technology Innovation Center of Metal Fiber Textile, Baoding, ChinaHebei University of Science and Technology, Hebei Technology Innovation Center of Textile and Garment, Shijiazhuang, China; Corresponding authors at: Hebei Technology Innovation Center of Textile and Garment, School of Textile and Garment, Hebei University of Science and Technology, Shijiazhuang, China (B. Shi).Wearable flexible pressure sensors are a novel class of human activity detection device. However, the preparation of pressure sensors with high sensitivity and wide sensing range still faces great challenges. This study reveals an flexible heat-resistant variable density point pressure sensing array (PSA) with ultra-wide sensing range based on Ti3C2Tx-MXene. MXene containing polar oxygen-containing functional groups coated polyester fiber fabricated the pressure sensing layer while a stainless steel wire core is used as a flexible electrode for signal collection. The signal processing device rapidly converts the mechanical signal into electrical signal output to increase the transmission speed and range. Experimental results show that the PSA can effectively sense dynamic and static pressures with high sensitivity (0.14–0.87 kPa−1 over a pressure range of 7.2 Pa–2000 kPa), a wide sensing range (0–15000 kPa), fast response time (80 ms), 10,000 cycles (2000 kPa) stability and maintains a 81.25% current response. The noval fully woven structural flexible PSA exhibited larger area, of which the weave density is varied to control resolution and the pressure mapping is referenced to each pixel point to qualitatively and quantitatively analyze shape and pressure distribution. Variable density points pressure sensor with wide sensing range and spatial pressure mappinghas promising applications in healthcare.http://www.sciencedirect.com/science/article/pii/S0264127523006251MXeneCore-sheath structurePressure sensor arrayWide sensing range |
| spellingShingle | Lu Chen Bao Shi Xinying Liu Sainan Wei Ge Fang Ruosi Yan Variable density points pressure sensor with wide sensing range and spatial pressure mapping Materials & Design MXene Core-sheath structure Pressure sensor array Wide sensing range |
| title | Variable density points pressure sensor with wide sensing range and spatial pressure mapping |
| title_full | Variable density points pressure sensor with wide sensing range and spatial pressure mapping |
| title_fullStr | Variable density points pressure sensor with wide sensing range and spatial pressure mapping |
| title_full_unstemmed | Variable density points pressure sensor with wide sensing range and spatial pressure mapping |
| title_short | Variable density points pressure sensor with wide sensing range and spatial pressure mapping |
| title_sort | variable density points pressure sensor with wide sensing range and spatial pressure mapping |
| topic | MXene Core-sheath structure Pressure sensor array Wide sensing range |
| url | http://www.sciencedirect.com/science/article/pii/S0264127523006251 |
| work_keys_str_mv | AT luchen variabledensitypointspressuresensorwithwidesensingrangeandspatialpressuremapping AT baoshi variabledensitypointspressuresensorwithwidesensingrangeandspatialpressuremapping AT xinyingliu variabledensitypointspressuresensorwithwidesensingrangeandspatialpressuremapping AT sainanwei variabledensitypointspressuresensorwithwidesensingrangeandspatialpressuremapping AT gefang variabledensitypointspressuresensorwithwidesensingrangeandspatialpressuremapping AT ruosiyan variabledensitypointspressuresensorwithwidesensingrangeandspatialpressuremapping |