Providing of MEMS inclinometer operation under external influencing factors
Research data of accelerometer noise parameters were used to calculate possible resolution. The layout scheme has been developed for design creation. Engineering calculations allow evaluating the reliability and the ability for MEMS inclinometer operation under external influencing factors. Protection technology has been developed to ensure reliable inclinometer operation from external influencing factors.
On Inclinometric Systems Hardware Complexing
The paper considers the issues of the inclinometric systems complexing, based on a three-component fluxgate azimuth sensor and a three-component zenith angle sensor in the tasks of determining the spatial orientation parameters of wells and borehole objects. The structure of the inclinometric system, the measuring angular parameters, indicators affecting the accuracy of the measurements, the factors of additional measurement errors occurrence are considered. While the inclinometric system is moving inside an open-hole well, it is systematically exposed to various disturbing factors, which include shock overloads, high temperatures, magnetic anomalies, etc. An approach to constructing the integrated inclinometric systems, based on the same type of downhole tools, is discussed to reduce the influence of these factors on the measured information of the device and to reduce the total error of the spatial orientation parameters measurement at the oil and gas wells. The method of checking the inclinometric system operability in the field near the well and its main criteria are studied.
Measurement of Capacitive Accelerometer with Decreased Nonlinearity of Static Characteristic
A series of the experimental works, which allowed achieving an evident improvement of functional parameters of MEMS accelerometers, was performed by specialists of the Microelectronics Department MIET. In particular – decrease the nonlinearity of the static characteristic. This article describes methods, which allowed achieving these results. Keywords-MEMS accelerometer; capacitive accelerometer; capacitance-to-voltage converter