Deployment of Inductance-Based Pulsating Sensor Toward Development of Measurement Technique for Ovality in Pipe

Sanga, Ramesh; Rajiniganth, M. P.; Sahoo, Prativa

doi:10.1109/tim.2016.2526637

Cited by 11 publications

(2 citation statements)

References 15 publications

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“…They require elaborate instrumentation, high cost, greater power consumption and more space. Direct digital readable sensors or quasi-digital sensors are highly precise with low power consumption, lower cost and are portable, making them suitable for the construction of instruments for industrial applications [11][12][13]. Figure 1(b) shows a diagram of the quasi-digital sensor.…”

Section: Introductionmentioning

confidence: 99%

Design and development of a quasi-digital sensor and instrument for water turbidity measurement

Sanga

Sivaramakrishna

Rao

2019

Meas. Sci. Technol.

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In this paper, the design, realization, fabrication and assembly of a prototype water turbidity monitoring instrument based on an opto-resistive quasi-digital sensor has been proposed. The turbidity sensor has been constructed with LED (590 nm) as the light source, a light-dependent resistor, fixed capacitor and logic gate inverter. The primary output signal from the sensor is in the form of a transistor–transistor-logic pulse stream with 50% duty cycle. This form of the output signal can be directly interfaced with the microcontroller. To process pulse stream from the sensor, to convert into turbidity value in NTU and to display on an LCD, a microcontroller (PIC18f4550)-based embedded system has been developed. The turbidity monitoring instrument has been constructed, calibrated and experimentally tested by measuring the turbidity of the water in the range of 0–1000 NTU. The turbidity of 0–1000 NTU corresponded to the output frequency of 40.6–18.8 kHz with sensitivity of 22 Hz/NTU. This is a high-precision, low-power, portable instrument with low manufacturing costs compared to commercial turbidity monitoring instruments.

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Section: Introductionmentioning

confidence: 99%

Design and development of a quasi-digital sensor and instrument for water turbidity measurement

Sanga

Sivaramakrishna

Rao

2019

Meas. Sci. Technol.

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“…Furthermore, these sensors based on conventional measurement methods require elaborate instrumentation circuits such as an excitation coil with a constant current and frequency, a pickup coil in a differential configuration, bridge circuit, pre-amplification, post-amplification, low pass filter, analog to digital conversion and digital circuitry [12][13][14][15][16][17][18][19][20]. In the Indira Gandhi Centre for Atomic Research (IGCAR), a new class of sensors called quasi-digital sensors (pulsating sensors) are being developed and deployed for many physicochemical applications; the output of these sensors is a train of rectangular transistor-transistor logic (TTL) pulses of 5 V d.c, [21][22][23][24][25][26]. These sensors overcome the drawbacks of conventional methods.…”

Section: Introductionmentioning

confidence: 99%

Deployment of an inductance-based quasi-digital sensor to detect metallic wear debris in lubricant oil of rotating machinery

Sanga

Srinivasan

Sivaramakrishna

et al. 2018

Meas. Sci. Technol.

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In rotating machinery due to continuous rotational induced wear and tear, metallic debris will be produced and mixes with the in-service lubricant oil over the course of time. This debris gives the sign of potential machine failure due to the aging of critical parts like gears and bearings. The size and type of wear debris has a direct relationship with the degree of wear in the machine and gives information about the healthiness of equipment. This article presents an inductive quasi-digital sensor to detect the metallic debris, its type; size in the lubrication oil of rotating machinery. A microcontroller based low cost, low power, high resolution and high precise instrument with alarm indication and LCD is developed to detect ferrous debris of sizes from 30 µm and non-ferrous debris of 50 µm. It is thoroughly tested and calibrated with ferrous, non-ferrous debris of different sizes in the air environment. Finally, an experiment is conducted to check the performance of the instrument by circulating lubricant oil containing ferrous, non-ferrous debris through the sensor.

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Fuzzy Proximity Two-Dimension Inductance Gesture Recognition System Analysis and Implement

Chu,

Chang

2024

Lecture Notes in Electrical Engineering

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Deployment of Inductance-Based Pulsating Sensor Toward Development of Measurement Technique for Ovality in Pipe

Cited by 11 publications

References 15 publications

Design and development of a quasi-digital sensor and instrument for water turbidity measurement

Design and development of a quasi-digital sensor and instrument for water turbidity measurement

Deployment of an inductance-based quasi-digital sensor to detect metallic wear debris in lubricant oil of rotating machinery

Fuzzy Proximity Two-Dimension Inductance Gesture Recognition System Analysis and Implement

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