{"title":"Digital Closed-loop Fiber Optic Gyroscopes - A Choice for Micro/Nano-Satellites Application","authors":"Jing Jin, Jili He, Kun Ma, Linghai Kong","doi":"10.1109/ISISS.2019.8739663","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739663","url":null,"abstract":"Two improved compact architectures of three-axes IFOG using sharing components and time division multiplexing with a new modulation method were proposed. The miniaturization techniques for configurations, electronics and optical components were demonstrated. And an efficient approach of parameters monitoring and fault diagnosis has been developed. Finally the new products, performance test results and their uses in several micro/nano-satellites were introduced.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116381906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kévin Colin, Fabrício Saggin, C. Blanc, X. Bombois, A. Korniienko, G. Scorletti
{"title":"Identification-Based Approach for Electrical Coupling Compensation in a MEMS Gyroscope","authors":"Kévin Colin, Fabrício Saggin, C. Blanc, X. Bombois, A. Korniienko, G. Scorletti","doi":"10.1109/ISISS.2019.8739573","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739573","url":null,"abstract":"This work consists of a new approach to identify and compensate the parasitic electrical coupling between the excitation and the detection circuits of a MEMS gyroscope. Based on multivariable identification and the nonlinear behavior of electrostatic actuators, we propose a systematic and flexible way to model the mechanical modes as well as the parasitic coupling. The electrical coupling model is then used to compensate the parasitic effects of the device. Our main contributions are: (i) no model structure is enforced, so all the dynamics between actuation and detection are considered; and (ii) the multivariable framework allows also identifying the parasitic cross-couplings.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129063729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Moran, K. Stanzione, A. Sabater, Taneka Lewis, V. Bădescu, Andrew Wang
{"title":"Self-Induced Parametric Amplification in the Disk Resonant Gyroscope","authors":"K. Moran, K. Stanzione, A. Sabater, Taneka Lewis, V. Bădescu, Andrew Wang","doi":"10.1109/ISISS.2019.8739314","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739314","url":null,"abstract":"This paper discusses experimental investigation to the observation of nonlinear mode coupling in the disk resonant gyroscope (DRG) and demonstrating 20x improvement in scale factor sensitivity and 10x improvement in bias instability, demonstrated on a single device.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"198 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124715406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. He, R. Gordenker, J. Woo, J. Nees, B. Shiari, T. Nagourney, J.Y.N. Cho, K. Najafi
{"title":"Laser Self-Mixing Interferometry for Precision Displacement Measurement in Resonant Gyroscopes","authors":"G. He, R. Gordenker, J. Woo, J. Nees, B. Shiari, T. Nagourney, J.Y.N. Cho, K. Najafi","doi":"10.1109/ISISS.2019.8739659","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739659","url":null,"abstract":"Laser self-mixing interferometry (SMI), as an alternative contactless displacement measurement method, has extremely high resolution (pico-meter), large dynamic range and wide bandwidth. Comparing to electrostatic capacitive sensing, its detection accuracy does not depend on the gap size, electrode area, or bias voltage, which are bottlenecks for high-performance vibrating sensors. This paper presents our initial study in measuring vibrations of 3D shell resonators by laser self-mixing interferometry for application in high-performance gyroscopes. Our measurement of vibrations of a shell resonator using a VCSEL shows a noise-equivalent displacement resolution of 329pm with 100Hz bandwidth for resonator vibration amplitudes of less than 100nm, which can be improved down to $pmb{2.2}mathbf{pm}/surdmathbf{Hz}$ using low noise voltage amplifiers. If used with a fused silica shell resonator gyroscope, a rate resolution of 0.45 mdeg/hr with 1Hz bandwidth can be expected. To expand sensor dynamic range, a real-time, high-accuracy phase unwrapping technique is proposed. The scale factor of the SMI can be optimized in real time through mid-fringe point tracking by a positioning actuator.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130348666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Forke, K. Hiller, S. Hahn, S. Weidlich, S. Konietzka, T. Motl, Alexander Praedicow, T. Otto
{"title":"Low Power High Bandwidth Acceleration Sensor For Industrial Applications","authors":"R. Forke, K. Hiller, S. Hahn, S. Weidlich, S. Konietzka, T. Motl, Alexander Praedicow, T. Otto","doi":"10.1109/ISISS.2019.8739510","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739510","url":null,"abstract":"This paper reports on the improved micromechanical structures and improved integrated electronics to create high bandwidth acceleration sensors with a high signal to noise ratio and very low power electronics. This ambitious aim can be achieved by a very close co-design of MEMS and ASIC. Our two axis micromechanical element is optimized with respect to its seismic mass, which is needed to have an ultra-low noise sensor. Therefore, a large height of the micro mechanical structure is preferred. Another aim is a very high capacitive sensitivity while keeping the base capacitance as small as possible to aim for a small power consumption. Hence, a high aspect ratio technology is essential.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"169 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121722845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
G. Gattere, F. Rizzini, L. Corso, A. Alessandri, F. Tripodi, S. Paleari
{"title":"Geometrical and Process Effects on MEMS Dimensional Loss: a Frequency Based Characterization","authors":"G. Gattere, F. Rizzini, L. Corso, A. Alessandri, F. Tripodi, S. Paleari","doi":"10.1109/ISISS.2019.8739744","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739744","url":null,"abstract":"In this paper we describe a methodology to fully characterize the Deep Reactive Ion Etching (DRIE) of Micro-Electro Mechanical (MEM) structures. One of the key aspects of this manufacturing step is the dimensional loss (CDloss) with respect to nominal geometry. For the sake of simplicity, this parameter is commonly considered uniform in the mechanical element design, leading to a series of approximations. In order to better fashion the local response of the etching process on the mechanical elements, a test pattern of resonating structures was implemented. An in plane resonator using folded springs arranged in a “Tang-like” configuration, shielded with different sets of dummy elements was designed. With an extensive experimental campaign, it has been possible to demonstrate a strong correlation between the first natural frequency of the resonator (i.e. CDloss) with the characteristic dimensions of the shielding elements. Moreover, the effect of different etching equipment was analyzed, showing a significant impact and highlighting the need of different mask design customization for each process tool.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121793105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Mahmoud, L. Cai, J. Bain, T. Mukherjee, G. Piazza
{"title":"Acousto-Optic Gyroscope with Improved Sensitivity and 100 second Stability in a Small Form Factor","authors":"A. Mahmoud, L. Cai, J. Bain, T. Mukherjee, G. Piazza","doi":"10.1109/ISISS.2019.8739521","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739521","url":null,"abstract":"This paper reports significant improvements made to enhance the sensitivity (9x), signal to noise ratio (13x) and stability (over 100 sec) of the Acousto-Optic Gyroscope (AOG) while simultaneously reducing device form factor by 2x. Performance enhancements were achieved by materials and device design of both acoustic and optical components. Acoustic quality factor of 4300 was measured with 24 kHz frequency mismatch between drive and sense ensuring matched mode operation while low waveguide insertion loss of 0.54dB/cm was achieved.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"32-33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132043678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ice-surface Profilometry with Millimeter Vertical Resolution over 10's of Meters Using a MEMS Inclinometer","authors":"M. Bremer, T. Richardson, K. Mertins","doi":"10.1109/ISISS.2019.8739749","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739749","url":null,"abstract":"We describe a new application of MEMS based inclinometers to indoor ice resurfacing and leveling. Simple integration of incline values produces a surface profile with mm level precision over the length of the ice rink. A proof of concept (POC) system was created incorporating a MEMS inclinometer and using an image-based method to provide a highly accurate measure of horizontal displacement despite the low-friction surface. This combination of low-cost sensors, high precision profilometry over large distances, and a surface agnostic measure of absolute displacement means the approach is attractive for many applications beyond ice leveling.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133248890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. Lemmerhirt, Onnop Srivannavit, Sam Chen, Tom Litow, J. Mitchell, Philip C. Cooksey, R. Sturdevant, J. Bingham, Orlando Padilla, M. Trevino
{"title":"Improved Scale-Factor and Bias Stability of Ovenized Inertial Sensors in an Environmentally-Stabilized Inertial Measurement Unit (eIMU)","authors":"D. Lemmerhirt, Onnop Srivannavit, Sam Chen, Tom Litow, J. Mitchell, Philip C. Cooksey, R. Sturdevant, J. Bingham, Orlando Padilla, M. Trevino","doi":"10.1109/ISISS.2019.8739649","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739649","url":null,"abstract":"This paper reports on scale-factor and bias stability improvements for a commercial 6-axis inertial measurement unit (IMU) enabled using oven-stabilized “environment-resistant packaging (ERP).” Precise temperature control of the IMU die is accomplished using an in-package isolation substrate with thermal isolation for low-power heating. This substrate also isolates the sensors from system-level mechanical stresses. The resulting ovenized device is known as an Environmentally-Stabilized Inertial Measurement Unit, or eIMU. For the first time., a population of eIMU devices has undergone rigorous third-party testing to quantify the performance of the eIMU compared to the same IMU in its standard manufacturer package. The results indicate a 13–115 x improvement for scale-factor vs temperature and a 6–40 x improvement for bias repeatability vs. temperature for the 3 gyroscopes and 3 accelerometers in the IMU. In addition., the eIMU shows 12–44 percent improvement in bias stability for each of these sensors and up to 19 x improvement in long-term drift.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131400656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Directional Ranging for Enhanced Performance of Aided Pedestrian Inertial Navigation","authors":"Yusheng Wang, Sina Askari, Chi-Shih Jao, A. Shkel","doi":"10.1109/ISISS.2019.8739685","DOIUrl":"https://doi.org/10.1109/ISISS.2019.8739685","url":null,"abstract":"We present a ranging-based aiding method for pedestrian inertial navigation, utilizing not only ranging readouts, but also orientation of the ranging sensors. Both numerical and experimental results demonstrated improvements in navigation accuracy using the method. Kalman Filter (KF) was implemented to merge inertial navigation with Zero-Velocity-Update (ZUPT) algorithm and foot- to- foot directional ranging information. The improvement of navigation accuracy was achieved purely algorithmically without any increase in complexity of the hardware. We demonstrated experimentally that the navigation errors can be improved by about two times using the method.","PeriodicalId":162724,"journal":{"name":"2019 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129524103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}