{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T09:15:13Z","timestamp":1783070113315,"version":"3.54.6"},"reference-count":32,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T00:00:00Z","timestamp":1783036800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Key R&D Program of Shandong Province","award":["2023CXPT097"],"award-info":[{"award-number":["2023CXPT097"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Piezoelectric pressure sensors for dynamic monitoring face a trade-off between charge output and measurement range, and existing high-sensitivity designs are largely confined to narrow ranges. This study presents a composite layered piezoelectric pressure sensor in which a 316L stainless-steel diaphragm drives a centrally suspended PZT-5H wafer supported by a perforated alumina gasket, with the wafer thickness and cavity radius optimized under a 10 MPa full-scale stress constraint. Over 0\u201310 MPa, quasi-static calibration gave a highly repeatable quadratic pressure\u2013charge relationship (R2=0.99995) with a maximum residual below 1% FS. The sensitivity is pressure-dependent: the secant sensitivity increased monotonically from 3.16 pC\/kPa at 1 MPa to 5.36 pC\/kPa at 10 MPa, reflecting a stress-stiffening response rather than a measurement tolerance band. The output deviation remained within 3% from 25 \u00b0C to 150 \u00b0C. Shock-tube testing yielded a resonance of \u223c50 kHz and a mutually consistent 10\u201390% leading-edge interval of 10.12 \u03bcs. Combining high charge sensitivity over a wide 0\u201310 MPa range with a fast transient response and stable operation up to 150 \u00b0C, the proposed sensor is suited to dynamic pressure-pulsation monitoring in fluid-power and thermal and power-plant fluid systems.<\/jats:p>","DOI":"10.3390\/s26134202","type":"journal-article","created":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T07:59:47Z","timestamp":1783065587000},"page":"4202","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Composite Layered Piezoelectric Pressure Sensor for Dynamic Monitoring with Enhanced Sensitivity and Temperature Adaptability"],"prefix":"10.3390","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-4186-1359","authenticated-orcid":false,"given":"Suyue","family":"Liu","sequence":"first","affiliation":[{"name":"School of Information Science and Engineering, Shandong University, Qingdao 266237, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dazhao","family":"Zhou","sequence":"additional","affiliation":[{"name":"Key Laboratory of Laser and Infrared System of Ministry of Education, Shandong University, Qingdao 266237, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-5857-758X","authenticated-orcid":false,"given":"Jinghua","family":"Lin","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Shandong University, Qingdao 266237, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jifang","family":"Tao","sequence":"additional","affiliation":[{"name":"School of Information Science and Engineering, Shandong University, Qingdao 266237, China"},{"name":"Key Laboratory of Laser and Infrared System of Ministry of Education, Shandong University, Qingdao 266237, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"156","DOI":"10.1038\/s41378-023-00620-1","article-title":"Advances in high-performance MEMS pressure sensors: Design, fabrication, and packaging","volume":"9","author":"Han","year":"2023","journal-title":"Microsyst. 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