A Surface-Micromachined Nitride-Diaphragm High-Pressure Sensor for Oil Well Application

2000 ◽  
Author(s):  
Yong Xu ◽  
Fukang Jiang ◽  
Yu-Chong Tai ◽  
Eric Donzier ◽  
William A. Loomis ◽  
...  
Keyword(s):  
High Pressure ◽  
Temperature Coefficient ◽  
Pressure Sensor ◽  
Full Scale ◽  
Oil Well ◽  
Excitation Voltage ◽  
First Report

Abstract A surface-micromachined, high-pressure sensor with polysilicon piezoresistors for oil well applications has been successfully developed. This work represents the first report of a nitride-diaphragm (3μm thick) oil-well pressure sensor with a diaphragm diameter of 44μm. The sensors have been calibrated up to 4000 psi. A sensitivity of 7.7 μV/V/psi is obtained. With 5 V excitation voltage, the full scale output (FSO, 4000 psi) is 154 mV. The nonlinearity is less than ± 0.2% of FSO. The hysteresis is less than 0.04% of FSO. A temperature coefficient of 25 μV/V/°C (equivalent to 0.08% of FSO/°C) is observed under 1000 psi pressure bias.

Experimental study of the strength and durability of metal-composite high-pressure tanks

2019 ◽  
Vol 85 (1(I)) ◽  
pp. 49-56 ◽  
Author(s):  
A. M. Lepikhin ◽  
V. V. Moskvichev ◽  
A. E. Burov ◽  
E. V. Aniskovich ◽  
A. P. Cherniaev ◽  
...  
Keyword(s):  
High Pressure ◽  
Strain State ◽  
Full Scale ◽  
Fracture Mechanisms ◽  
Metal Composite ◽  
Test Results ◽  
Stress Strain ◽  
Pneumatic Pressure ◽  
Stress Strain State ◽  
Composite Tank

The results of unique experimental studies of the strength and service life of a metal-composite high-pressure tank are presented. The goal of the study is to analyze the fracture mechanisms and evaluate the strength characteristics of the structure. The methodology included tests of full-scale samples of the tank for durability under short-term static, long-term static and cyclic loading with internal pneumatic pressure. Generalized test results and data of visual measurements, instrumental and acoustic-emission control of deformation processes, accumulation of damages and destruction of full-scale tank samples are presented. Analysis of the strength and stiffness of the structure exposed to internal pneumatic pressure is presented. The types of limiting states of the tanks have been established experimentally. Change in the stress-strain state of the tank under cyclic and prolonged static loading is considered. Specific features of the mechanisms of destruction of a metal-composite tank are determined taking into account the role of strain of the metal liner. The calculated and experimental estimates of the energy potential of destruction and the size of the area affected upon destruction of the tank are presented. Analysis of test results showed that the tank has high strength and resource characteristics that meet the requirements of the design documentation. The results of the experiments are in good agreement with the results of numerical calculations and analysis of the stress-strain state and mechanisms of destruction of the metal-composite tank.

scholarly journals Simulation and Nonlinearity Optimization of a High-Pressure Sensor

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4419
Author(s):  
Ting Li ◽  
Haiping Shang ◽  
Weibing Wang
Keyword(s):  
High Pressure ◽  
Pressure Sensor ◽  
Pressure Sensors ◽  
Original Model ◽  
Ansys Software ◽  
Nonlinear Error ◽  
Sensor Model ◽  
Optimized Model ◽  
Simulation Results ◽  
Better Than

A pressure sensor in the range of 0–120 MPa with a square diaphragm was designed and fabricated, which was isolated by the oil-filled package. The nonlinearity of the device without circuit compensation is better than 0.4%, and the accuracy is 0.43%. This sensor model was simulated by ANSYS software. Based on this model, we simulated the output voltage and nonlinearity when piezoresistors locations change. The simulation results showed that as the stress of the longitudinal resistor (RL) was increased compared to the transverse resistor (RT), the nonlinear error of the pressure sensor would first decrease to about 0 and then increase. The theoretical calculation and mathematical fitting were given to this phenomenon. Based on this discovery, a method for optimizing the nonlinearity of high-pressure sensors while ensuring the maximum sensitivity was proposed. In the simulation, the output of the optimized model had a significant improvement over the original model, and the nonlinear error significantly decreased from 0.106% to 0.0000713%.

scholarly journals A Fluidic-Based High-Pressure Sensor Interrogated by Microwave Fabry–Perot Interferometry

2017 ◽  
Vol 17 (14) ◽  
pp. 4388-4393 ◽  
Author(s):  
Wenge Zhu ◽  
Baokai Cheng ◽  
Yurong Li ◽  
Runar Nygaard ◽  
Hai Xiao
Keyword(s):  
High Pressure ◽  
Pressure Sensor ◽  
Fabry Perot

scholarly journals A Manganin Thin Film Ultra-High Pressure Sensor for Microscale Detonation Pressure Measurement

Sensors ◽  
2018 ◽  
Vol 18 (3) ◽  
pp. 736 ◽  
Author(s):  
Guodong Zhang ◽  
Yulong Zhao ◽  
Yun Zhao ◽  
Xinchen Wang ◽  
Xueyong Wei ◽  
...  
Keyword(s):  
Thin Film ◽  
High Pressure ◽  
Pressure Sensor ◽  
Pressure Measurement ◽  
Detonation Pressure ◽  
Ultra High Pressure

First Unsteady Pressure Measurements With a Fast Response Cooled Total Pressure Probe in High Temperature Gas Turbine Environments

2010 ◽  
Author(s):  
Mehmet Mersinligil ◽  
Jean-Franc¸ois Brouckaert ◽  
Julien Desset
Keyword(s):  
High Pressure ◽  
Pressure Sensor ◽  
Total Pressure ◽  
Fast Response ◽  
Design Stage ◽  
Absolute Pressure ◽  
Pressure Probe ◽  
Probe Design ◽  
Flame Tube ◽  
Blade Passing Frequency

This paper presents the first experimental engine and test rig results obtained from a fast response cooled total pressure probe. The first objective of the probe design was to favor continuous immersion of the probe into the engine to obtain time series of pressure with a high bandwidth and therefore statistically representative average fluctuations at the blade passing frequency. The probe is water cooled by a high pressure cooling system and uses a conventional piezo-resistive pressure sensor which yields therefore both time-averaged and time-resolved pressures. The initial design target was to gain the capability of performing measurements at the temperature conditions typically found at high pressure turbine exit (1100–1400K) with a bandwidth of at least 40kHz and in the long term at combustor exit (2000K or higher). The probe was first traversed at the turbine exit of a Rolls-Royce Viper turbojet engine, at exhaust temperatures around 750 °C and absolute pressure of 2.1bars. The probe was able to resolve the high blade passing frequency (≈23kHz) and several harmonics up to 100kHz. Besides the average total pressure distributions from the radial traverses, phase-locked averages and random unsteadiness are presented. The probe was also used in a virtual three-hole mode yielding unsteady yaw angle, static pressure and Mach number. The same probe was used for measurements in a Rolls-Royce intermediate pressure burner rig. Traverses were performed inside the flame tube of a kerosene burner at temperatures above 1600 °C. The probe successfully measured the total pressure distribution in the flame tube and typical frequencies of combustion instabilities were identified during rumble conditions. The cooling performance of the probe is compared to estimations at the design stage and found to be in good agreement. The frequency response of the probe is compared to cold shock tube results and a significant increase in the natural frequency of the line-cavity system formed by the conduction cooled screen in front of the miniature pressure sensor were observed.

scholarly journals Melt-layer thickness measurements during crushing experiments on fresh-water ice

1994 ◽  
Vol 40 (134) ◽  
pp. 119-124
Author(s):  
R.E. Gagnon
Keyword(s):  
High Pressure ◽  
Layer Thickness ◽  
Fresh Water ◽  
Contact Zone ◽  
Pressure Sensor ◽  
Front Face ◽  
Total Load ◽  
Water Ice ◽  
The Face ◽  
Electrical Conductors

AbstractA stainless-steel platen, with a centrally located pressure sensor on the front face, has been used to crush mono-crystalline, bubble-free fresh-water ice samples. Two electrical conductors, located on the face of the pressure sensor, were connected to a bridge circuit so that the presence of liquid between the two conductors could be detected and its thickness measured. Video records of the ice/ steel contact zone during crushing were obtained by mounting samples on a thick Plexiglas plate which permitted viewing through the specimen to the ice/steel interface. Total load and pressure records exhibited a sawtooth pattern due to the compliance of the ice and the testing apparatus, and spalling of ice from the contact zone. When the region of contact was in the vicinity of the pressure transducer, liquid was detected and peaks occurred in the liquid sensor output when load drops occurred. Contact between the platen and the ice consisted of low pressure zones of highly damaged crushed and/or refrozen ice, opaque in appearance, and transparent, high-pressure regions of relatively undamaged ice. Upper limits for the liquid-layer thickness on the high-pressure undamaged ice were ~3 µm on the ascending sides of the sawteeth in the load records and ~ 21 µ on the sharp descending sides.

scholarly journals Development of the Oil Filled High Pressure Sensor Using a Silicon Piezoresistive Strain Gauge

1989 ◽  
Vol 25 (5) ◽  
pp. 524-530 ◽  
Author(s):  
Satoshi SHIMADA ◽  
Norio ICHIKAWA ◽  
Tetsuo KUMAZAWA ◽  
Ken MURAYAMA
Keyword(s):  
High Pressure ◽  
Pressure Sensor ◽  
Strain Gauge
Sign in / Sign up

Export Citation Format

Share Document