Design of an Inline JFET Buffer for High-Impedance Piezoelectric Sensor Signal Conditioning

Author(s)	Ms. Divya Kalamkar, Prof. Purushottam Chawke
Country	India
Abstract	Accurate measurement of blast-induced transient pressure is challenging due to the high output impedance of piezoelectric sensors, which leads to signal distortion in conventional systems. This work presents an inline JFET (2SK209) source follower for effective signal conditioning, offering high input impedance and improved signal transmission. Results and simulations confirm that while buffering preserves signal integrity, proper biasing and interfacing are essential for reliable measurement of high-frequency transient
Keywords	piezoelectric sensor, quartz sensor, JFET buffer, voltage follower, high input impedance, signal conditioning, impedance matching, data acquisition.
Field	Physics > Electric
Published In	Volume 8, Issue 3, May-June 2026
Published On	2026-05-03
DOI	https://doi.org/10.36948/ijfmr.2026.v08i03.77112

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