Metal Strain Gauge Pressure Sensor Using SiO2/Si3N4 Diaphragm

2019 ◽  
Vol 139 (4) ◽  
pp. 63-68
Author(s):  
Hiroshi Nakano ◽  
Masahiro Matsumoto ◽  
Yasuo Onose ◽  
Kazuhiro Ohta
Keyword(s):  
Pressure Sensor ◽  
Strain Gauge ◽  
Gauge Pressure ◽  
Metal Strain

scholarly journals Design of an Integrated Anti-Hardening System for Carbon-In-Leach Tanks

2019 ◽  
Vol 19 (2) ◽  
pp. 64-69
Author(s):  
R. A. Ofosu ◽  
E. Normanyo ◽  
B. Essilfie-Nyame
Keyword(s):  
Pressure Sensor ◽  
Strain Gauge ◽  
Light Emitting Diode ◽  
Density Measurement ◽  
Monitoring Systems ◽  
Light Emitting ◽  
Set Point ◽  
Gauge Pressure ◽  
Hardening System ◽  
Level Sensors

Slurry density monitoring is of paramount importance in the industrial world. Most industries, especially cement and mineral processing industries, employ this method to obtain good quality products. However, most Carbon-In-Leach (CIL) tanks of gold processing industries do not use slurry density monitoring systems. As a result, many a time, agitation difficulties occur when the slurry begins to harden. This paper, therefore, seeks to design an integrated anti-hardening system for CIL tanks, with the aid of a microcontroller, to monitor the density of the slurry in order to prevent it from hardening. Slurry density measurement was achieved with the help of a strain gauge pressure sensor and a couple of level sensors. Atmega 328p  microcontroller board was programmed to continuously compute the density of the slurry from values of pressure and level of slurry in the tank indicated by the pressure and level sensors, respectively. The microcontroller responds to slurry hardening by activating a light emitting diode and triggering the piezo buzzer when a set point is reached. The designed circuit was successfully simulated using Proteus 8.2 design suite software to ascertain its functionality. Based on the results obtained, the light emitting diode and piezo buzzer activated when the set point was reached. It was concluded that the anti-hardening system is effective for constantly monitoring the density of the slurry to prevent it from hardening. It was also recommended that the mining industries could employ the designed system to monitor the density in order to prevent hardening of slurry in CIL tanks. Keywords: Carbon-In-Leach Tanks, Slurry Densisty, Strain Guage Pressure Sensor, Microcontroller

Investigation of Interface Oil Insufficiency in a Strain Gauge Type Pressure Sensor

2022 ◽  
Vol 23 (1) ◽  
Author(s):  
Kamran Soltani ◽  
Ghader Rezazadeh ◽  
Manus Henry ◽  
Oleg Bushuev
Keyword(s):  
Pressure Sensor ◽  
Strain Gauge ◽  
Type Pressure

Design, development and performance evaluation of pressure sensor using eddy current displacement sensing coil

Sensor Review ◽  
2018 ◽  
Vol 38 (2) ◽  
pp. 248-258
Author(s):  
Gobi K. ◽  
Kannapiran B. ◽  
Devaraj D. ◽  
Valarmathi K.
Keyword(s):  
Performance Evaluation ◽  
Eddy Current ◽  
Pressure Sensor ◽  
Strain Gauge ◽  
Pressure Sensors ◽  
Calibration Data ◽  
Position Measurement ◽  
Content Type ◽  
Short Period ◽  
Type Pressure

Purpose The conventional strain gauge type pressure sensor suffers in static testing of engines due to the contact transduction method. This paper aims to focus on the concept of non-contact transduction-based pressure sensor using eddy current displacement sensing coil (ECDS) to overcome the temperature limitations of the strain gauge type pressure sensor. This paper includes the fabrication of prototypes of the proposed pressure sensor and its performance evaluation by static calibration. The fabricated pressure sensor is proposed to measure pressure in static test environment for a short period in the order of few seconds. The limitations of the fabricated pressure sensor related to temperature problems are highlighted and the suitable design changes are recommended to aid the future design. Design/methodology/approach The design of ECDS-based pressure sensor is aimed to provide non-contact transduction to overcome the limitations of the strain gauge type of pressure sensor. The ECDS is designed and fabricated with two configurations to measure deflection of the diaphragm corresponding to the applied pressure. The fabricated ECDS is calibrated using a standard micro meter to ensure transduction within limits. The fabricated prototypes of pressure sensors are calibrated using dead weight tester, and the calibration results are analyzed to select the best configuration. The proposed pressure sensor is tested at different temperatures, and the test results are analyzed to provide recommendations to overcome the shortcomings. Findings The performance of the different configurations of the pressure sensor using ECDS is evaluated using the calibration data. The analysis of the calibration results indicates that the pressure sensor using ECDS (coil-B) with the diaphragm as target is the best configuration. The accuracy of the fabricated pressure sensor with best configuration is ±2.8 per cent and the full scale (FS) output is 3.8 KHz. The designed non-contact transduction method extends the operating temperature of the pressure sensor up to 150°C with the specified accuracy for the short period. Originality/value Most studies of eddy current sensing coil focus on the displacement and position measurement but not on the pressure measurement. This paper is concerned with the design of the pressure sensor using ECDS to realize the non-contact transduction to overcome the limitations of strain gauge type pressure sensors and evaluation of the fabricated prototypes. It is shown that the accuracy of the proposed pressure sensor is not affected by the high temperature for the short period due to non-contact transduction using ECDS.

Method of metrological self-checking of a strain gauge pressure sensor

Metrologiya ◽  
2020 ◽  
pp. 48-62
Author(s):  
Vladimir A. Larionov
Keyword(s):  
Strain Gauge ◽  
Supply Voltage ◽  
Experimental Studies ◽  
Pressure Sensors ◽  
Experimental Sample ◽  
Self Monitoring ◽  
Gauge Pressure ◽  
External Conditions ◽  
Temperature And Pressure ◽  
Overall Resistance

Existing methods of metrological self-monitoring of measuring sensors for temperature and pressure of technological industries are considered. The analysis of methods of metrological self-checking of strain gauge pressure sensors is carried out. Method is proposed based on measuring the supply voltage and voltage on the measuring diagonal of the bridge. The temperature of the strain gauge bridge is determined using a semiconductor thermistor installed near the bridge. This allows you to adjust the measured value of the total resistance of the bridge from the temperature of the bridge. With aging and exposure to external conditions, a change in the overall resistance of the bridge can be used to judge the error of the sensor. An experimental sample of the sensor was made. The failure of the strain gage bridge is simulated by parallel connection of an additional resistor to one of the shoulders of the bridge. Experimental studies have shown that modern technical means make it possible to assess the effect of changes in the total bridge resistance on the sensor error.

Miniaturized pressure sensor using a free hanging strain-gauge with leverage effect for increased sensitivity

2001 ◽  
pp. 494-497 ◽  
Author(s):  
Patrik Melvås ◽  
Edvard Kälvesten ◽  
Peter Enoksson ◽  
Göran Stemme
Keyword(s):  
Pressure Sensor ◽  
Strain Gauge ◽  
Leverage Effect ◽  
Increased Sensitivity

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

Three-dimensional micromachining of silicon pressure sensor integrating resonant strain gauge on diaphragm

1990 ◽  
Vol 23 (1-3) ◽  
pp. 1007-1010 ◽  
Author(s):  
Kyoichi Ikeda ◽  
Hideki Kuwayama ◽  
Takashi Kobayashi ◽  
Teysuya Watanabe ◽  
Tadashi Nishikawa ◽  
...  
Keyword(s):  
Pressure Sensor ◽  
Strain Gauge ◽  
Three Dimensional

Design, fabrication and testing of reduced graphene oxide strain gauge based pressure sensor with increased sensitivity

2018 ◽  
Vol 24 (7) ◽  
pp. 2969-2981 ◽  
Author(s):  
M. S. Manjunath ◽  
N. Nagarjuna ◽  
G. Uma ◽  
M. Umapathy ◽  
M. M. Nayak ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pressure Sensor ◽  
Strain Gauge ◽  
Reduced Graphene ◽  
Increased Sensitivity
Sign in / Sign up

Export Citation Format

Share Document