Polymeric Transducers: An Inkjet Printed B-Field Sensor with Resistive Readout Strategy

There are not many high-precision, portable digital compass solutions available right now that can enhance combined navigation systems’ overall functionality. Additionally, there is a dearth of writing about these products. This is why a tunnel magnetoresistance (TMR) sensor-based high-precision portable digital compass system is designed. First, the least-squares method is used to compensate for compass inaccuracy once the ellipsoid fitting method has corrected manufacturing and installation errors in the digital compass system. Second, the digital compass’s direction angle data is utilized to offset the combined navigation system’s mistake. The final objective is to create a high-performing portable TMR digital compass system that will enhance the accuracy and stability of the combined navigation system (abbreviated as CNS). According to the experimental results, the digital compass’s azimuth accuracy was 4.1824° before error compensation and 0.4580° after it was applied. The combined navigation system’s path is now more accurate overall and is closer to the reference route than it was before the digital compass was added. Furthermore, compared to the combined navigation route without the digital compass, the combined navigation route with the digital compass included is more stable while traveling through the tunnel. It is evident that the digital compass system’s design can raise the integrated navigation system’s accuracy and stability. The integrated navigation system’s overall performance may be somewhat enhanced by this approach.

Section: Design Of High-precision Portable Digital Compass Systemmentioning

confidence: 99%

Development and Application of a High-Precision Portable Digital Compass System for Improving Combined Navigation Performance

Zhang,

Cui,

Zhang

2024

“…An inkjet-printed polymeric accelerometer with SU-8 material deposition was described by Roberto et al The optimized device has a resolution of 2 × 10 −3 g, a sensitivity of 6745 nm/g, and an acceleration range of 0–0.7 g. Based on these characteristic properties, inkjet printing can be used for a wide range of applications requiring accurate acceleration measurements across small displacements [ 90 ]. The low-cost magnetic field sensor prototype was also explained by Bruno et al A magnetic field range of 0–27 mT, a device responsivity of 3700/T, and a resolution of 0.458 mT were investigated [ 91 ]. Commercially available piezo-based inkjet printers have made it possible to print RF structures with 20 m features.…”

Section: Embedded Sensors With 3d Printing Technologymentioning

confidence: 99%

Embedded Sensors with 3D Printing Technology: Review

Bas,

Dutta,

Llamas Garro

et al. 2024

Embedded sensors (ESs) are used in smart materials to enable continuous and permanent measurements of their structural integrity, while sensing technology involves developing sensors, sensory systems, or smart materials that monitor a wide range of properties of materials. Incorporating 3D-printed sensors into hosting structures has grown in popularity because of improved assembly processes, reduced system complexity, and lower fabrication costs. 3D-printed sensors can be embedded into structures and attached to surfaces through two methods: attaching to surfaces or embedding in 3D-printed sensors. We discussed various additive manufacturing techniques for fabricating sensors in this review. We also discussed the many strategies for manufacturing sensors using additive manufacturing, as well as how sensors are integrated into the manufacturing process. The review also explained the fundamental mechanisms used in sensors and their applications. The study demonstrated that embedded 3D printing sensors facilitate the development of additive sensor materials for smart goods and the Internet of Things.

“…k is a fitting parameter taking into account the non-ideal coupling between B and I d . A k value of 0.1 has been obtained in previous works by fitting the model (6) to experimental data [ 34 ]. Such a value of k has been then confirmed by fitting the model (6) on the observed beam strain, as discussed in Section 3 .…”

Section: The Device Developedmentioning

confidence: 99%

A Low Cost Inkjet-Printed Mass Sensor Using a Frequency Readout Strategy

Andò

Baglio

Marletta

et al. 2021

Self Cite

The development of low-cost mass sensors is of unique interest for the scientific community due to the wide range of fields requiring these kind of devices. In this paper, a full inkjet-printed mass sensor is proposed. The device is based on a PolyEthylene Terephthalate (PET) cantilever beam (operating in its first natural frequency) where a strain-sensor and a planar coil have been realized by a low-cost InkJet Printing technology to implement the sensing and actuation strategies, respectively. The frequency readout strategy of the sensor presents several advantages, such as the intrinsic robustness against instabilities of the strain sensor, the residual stress of the cantilever beam, the target mass material, and the distance between the permanent magnet and the actuation coil (which changes as a function of the target mass values). However, the frictionless actuation mode represents another shortcoming of the sensor. The paper describes the sensor design, realization, and characterization while investigating its expected behavior by exploiting dedicate models. The working span of the device is 0–0.36 g while its resolution is in the order of 0.001 g, thus addressing a wide range of potential applications requiring very accurate mass measurements within a narrow operating range.