A novel ultra-high frequency humidity sensor based on a magnetostatic spin wave oscillator

The quest for highly sensitive QCM humidity sensors: The coating of CNT/MOF composite sensing films as case study

“…Therefore, there is always an increasing demand for the design and development of a low-cost and highly sensitive humidity sensors [1][2][3] . Humidity sensors based on various transduction techniques, including acoustic [4], resistance [5,6], magnetic [7], resonance [8], optical [9][10][11], impedance [12][13][14], delay-line [15], capacitance [16][17][18][19], and thermal [20] have been reported. Among these methods, is quartz crystal microbalance (QCM) technique, which are bulk acoustic-wave resonators, which have wide measuring range, are low-cost, small, stable, and highly sensitive to changes in mass with low detection limit, making them a preferable choice in sensing applications [21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39].…”

A silver nanoparticle-anchored UiO-66(Zr) metal–organic framework (MOF)-based capacitive H2S gas sensor

“…29 Owing to the above fascinating features, UiO-66 (Zr) can be used as promising materials for the gas sensing study. Various transduction mechanism such as optical, 30 thermal, 31 magnetic, 32 surface acoustic wave guide (SAW), 33 resistance, 34 resonance, 35 and capacitive 4, [24][25][26] have been employed for the detection of target gaseous analytes. Among them, interdigitated electrode (IDE) capacitive transducer is one of the most investigated technique owing to its miniature size, low-cost, low temperature independence, easy to integrate with read circuits, and high sensing performances features.…”

A Comparative Study of Interdigitated Electrode and Quartz Crystal Microbalance Transduction Techniques for Metal–Organic Framework-Based Acetone Sensors

“…Sensors based on various transduction mechanisms, such as resistive- [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 ], capacitive- [ 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ], optical- [ 26 , 27 , 28 , 29 ], magnetic- [ 30 ], thermal- [ 31 ], microwave- [ 32 , 33 ], and resonance-based [ 34 , 35 , 36 , 37 , 38 , 39 ] techniques, have been applied for detecting a target analyte. Among these sensors, interdigitated electrode (IDE) capacitors and quartz crystal microbalances (QCMs) are the most used because of their small size, low cost, and high sensitivity.…”