Experimental evaluation of strain in concrete elementsnisarg gandhi
Evaluation of strain using
1) mech strain gauge
2) elec strain gauge
also calculation of modulus of elasticity using
1) secant modulus
2) chord modulus
also for the procedure to use electrical strain gauge see the following link
https://drive.google.com/open?id=0Bw9bdaDxJsb8enFZOFhlRWFMYWs&authuser=1
Experimental evaluation of strain in concrete elementsnisarg gandhi
Evaluation of strain using
1) mech strain gauge
2) elec strain gauge
also calculation of modulus of elasticity using
1) secant modulus
2) chord modulus
also for the procedure to use electrical strain gauge see the following link
https://drive.google.com/open?id=0Bw9bdaDxJsb8enFZOFhlRWFMYWs&authuser=1
This presentation gives the information about:electrical resistance strain gauges, covering syllabus of Unit-1, Sub: Experimental stress analysis for BE course.
So you’ve decided you need a torque transducer? Now comes the fun part – choosing the right one. This presentation points out some factors to consider when making a selection.
Voltmeter & Transformers: Types and Applications.Diksha Prakash
This presentation gives an insight into the various types of voltmeters and transformers that exist. The are both electronic measuring instruments. All the types of voltmeters and transformers have been discussed alogwith numerical examples and their solutions.
Ohm's Law V = I x R (Volts = Current x Resistance). The Ohm (Ω) is a unit of electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals. 1)Measurement of Low resistance: 1) Ammeter Voltmeter method: This is very popular method for measurement of medium resistances since ...
This presentation gives the information about:electrical resistance strain gauges, covering syllabus of Unit-1, Sub: Experimental stress analysis for BE course.
So you’ve decided you need a torque transducer? Now comes the fun part – choosing the right one. This presentation points out some factors to consider when making a selection.
Voltmeter & Transformers: Types and Applications.Diksha Prakash
This presentation gives an insight into the various types of voltmeters and transformers that exist. The are both electronic measuring instruments. All the types of voltmeters and transformers have been discussed alogwith numerical examples and their solutions.
Ohm's Law V = I x R (Volts = Current x Resistance). The Ohm (Ω) is a unit of electrical resistance equal to that of a conductor in which a current of one ampere is produced by a potential of one volt across its terminals. 1)Measurement of Low resistance: 1) Ammeter Voltmeter method: This is very popular method for measurement of medium resistances since ...
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
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After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
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Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
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JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
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Length: 30 minutes
Session Overview
-------------------------------------------
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https://www.rttsweb.com/jmeter-integration-webinar
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During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
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- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
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Designing Great Products: The Power of Design and Leadership by Chief Designe...
E L E C T R I C A L M E A S U R E M E N T S J N T U M O D E L P A P E R{Www
1. www.studentyogi.com www.studentyogi.com
Code No: R05310202
Set No. 1
III B.Tech I Semester Regular Examinations, November 2007
ELECTRICAL MEASUREMENTS
(Electrical & Electronic Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Explain how a potential divider arrangement is used for multipliers used for
multi range voltmeters. Derive the expressions for resistance of di erent sec-
tions for a 4 range voltmeter.
(b) A basic Arsonval meter movement with an internal resistance m =100
and a full scale current of m = 1 mA is to be converted in to a multi range d.c.
voltmeter with ranges of 0-10 V, 0-50 V, 0-250 V, 0-500 V. Find the values of
various resistances using the potential divider arrangement. [10+6]
2. (a) Obtain the di erences between current transformer and potential transformer.
(b) What are the major sources of errors in current transformers? Explain them
in detail.
(c) Draw the equivalent circuit of current transformer. [5+5+6]
3. (a) Discuss the various types of errors and their methods of compensation in the
dynamometer type wattmeter.
(b) What are the di erences between LPF and UPF wattmeters. [10+6]
4. (a) What is creeping? How can it be prevented?
(b) A correctly adjusted, single phase, 240V Induction watt hour meter has a
meter constant of 600 rev per Kwh. Determine the speed of the disc, for a
current of 10 A at a power factor of 0.8 lagging.
If the lag adjustment is altered so that the phase angle between voltage use
and applied voltage is 860. Calculate the error introduced at
i. unity p.f
ii. 0.5 p.f lagging.
Give comments upon the results. [6+10]
5. Explain the construction and working principal of a polar type potentiometer with
a neat sketch. [16]
6. Explain the loss of charge method for measuring high resistance. Mention the
possible errors and suggest metho ds to minimize these. [16]
7. Explain the following:
(a) Why is schering bridge particularly suitable for measurement at high voltage?
(b) Why a spark is connected across resistance arms in a schering bridge?
2. www.studentyogi.com www.studentyogi.com
Code No: R05310202
Set No. 1
(c) Why is vibration galvanometer widely used as detector for operation of A.C.
bridges?
(d) Why is wagner’s earthing device used in measurements by A.C. bridges?
[4+4+4+4]
8. Explain the construction and working principle of ux meter with a neat diagram.
[16]
3. www.studentyogi.com www.studentyogi.com
Code No: R05310202
Set No. 2
III B.Tech I Semester Regular Examinations, November 2007
ELECTRICAL MEASUREMENTS
(Electrical & Electronic Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Explain the working and constructional details of an attraction type moving
iron instrument.
(b) Discuss its advantages and dis-advantages. [10+6]
2. Explain the constructional details and working of a single phase electro dynamome-
ter type of powerfactor meter. Prove that the special displacement of moving
system is equal to the phase angle of the system. [16]
3. (a) Explain how do you measure the total power in a 3-phase circuit with the help
of two wattmeters only.
(b) In a balanced three phase system power is measured by two wattmeter method
and the ratio of two wattmeter readings is 2:1. Determine the power factor of
the system and deduce the relation used? [10+6]
4. (a) What is phantom loading? Explain with an example how is it more advantages
than teating with direct loading?
(b) The constant for a three phase, 3 element integrating energymeter is 0.12
revolution of disc per Kwh. If the meter is normally used with a potential
transformer of ratio 22,000/110v and a current transformer of ratio 500/5A.
Find the error expressed as a percentage of the correct reading from the fol-
lowing test results for the instrument only:
Line voltage = 100V; Current =5.25 A; p.f=1 . Time to complete 40 revolu-
tions=61sec. [10+6]
5. Explain the following:
(a) How would you apply a correction for thermo-emf in d.c. potentiometer mea-
surement?
(b) What is the di erence between and A.C. potentiometer and a d.c. poten-
tiometer?
(c) What are the practical di culties associated with a.c. potentiometers?
(d) How the d.c. potentiometer is standardized? [4×4]
6. Explain the following:
(a) Why is Kelvin’s double bridge superior to the wheat-stone bridge for the
purpose of low resistance measurement?
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Code No: R05310202
Set No. 2
(b) How the di culties associated with the measurement of a very high resistance
are over come?
(c) How the e ects of contact resistance and resistance of the connecting leads
are eliminated in the measurement of resistance by Kelvin’s double bridge?
(d) Why is the Voltmeter-Ammeter method unsuitable for the precise measure-
ment of the low resistance? [4+4+4+4]
7. (a) Explain the method of measuring the dielectric loss of the capacitor at high
voltage and high frequency. Derive the condition of balance for the bridge.
Also, explain the precautions to be taken to ensure accuracy. Draw the phasor
diagram under balance conditions.
(b) In an Anderson bridge for measurement of inductance Lx and Resistance Rx
in the arm AB, the arm CD and DA have resistances of 600 each and the
arm CE has a capacitor of 1 F capacitor with A.C. supply at 100 Hz supplied
across A and C, balance is obtained with a resistance of 400 in arm DE and
800 in the arm BC. Calculate the value of Lx and Rx. [10+6]
8. (a) What are the di erences between ux meter and Ballistic galvanometer?
(b) The coil of a ballistic galvanometer has 115 turns of mean area 25 × 10 mm2.
The ux density in the air gap is 0.12 W/m2 and the moment of Inertia is
0.5×10-6 kg-m2. The sti ness constant of springs is 45 ×10-6 Nm/rad. What
current must be passed to give a de ection of 1000 and what resistance must
be added in series with the movement to give critical damping? [8+8]
5. www.studentyogi.com www.studentyogi.com
Code No: R05310202
Set No. 3
III B.Tech I Semester Regular Examinations, November 2007
ELECTRICAL MEASUREMENTS
(Electrical & Electronic Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) How is the current range of a PMMC instrument extended with the help of
shunts? Explain a method of reducing errors due to temperature changes in
the shunt connected instruments with suitable example.
(b) Explain the working of a universal shunt used for multi range- Ammeters.
Derive expressions for resistances of di erent sections of a universal shunt
used for a 3 range Ammeter. [8+8]
2. Explain the constructional details and working of a 3-phase electrodynamometer
type of power factor meter. Explain why phase splitting is not necessary in this
case while in a single phase power factor phase splitting has to be done by using R
in one circuit and L in another circuit of the moving coils. [16]
3. Derive the torque equation for an electrodynamometer type wattmeter. Explain
why it is necessary to make the potential coil circuit purely resistive? Comment
upon the shape of scale if spring control is used. [16]
4. Explain how the following adjustments are made in a single phase induction type
energy meter.
(a) Lag adjustment
(b) Adjustment for friction compensation
(c) Creep
(d) Overload compensation and
(e) Temperature compensation. [4+3+3+3+3]
5. (a) Explain how an unknown voltage can be measured by using a polar type
potentiometer?
(b) Calculate the inductance of a coil from the following measurement on an a.c.
potentiometer.
Voltage drop across a 0.1 standard resistor connected in series with the coil
= 0.613 1206 .
Voltage across the test coil through a 100/1 volt-ratio box = 0.781 50048 V.
Frequency is 50 Hz.
[10+6]
6. Explain what do you mean by low, medium and high resistances? Suggest various
suitable methods for measuring them giving justi cation. Explain any method to
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Code No: R05310202
Set No. 3
7. (a) What are the limitations of L.V. schering bridge?
(b) De ne dissipation factor? Derive the equation for dissipation factor in case of
L.V. schering bridge?
(c) In a Low-voltage schering bridge designed for the measurement of permittivity,
the branch ab consists of two electrodes between which the specimen under
test may be inserted; arm bc is a non-reactive resistor R3 in parallel with a
standard capacitor C3; arm CD is a non-reactive resistor R4 in parallel with a
standard capacitor C4; arm da is a standard air capacitor of capacitance C2.
Without the specimen between the electrodes, balance is obtained with the
following values, C3 = C4 = 120 pF, C2 = 150 PF, R3 = R4 = 5000 . With
the specimen inserted, these values become C3 = 200 PF; C4 = 1000 pF; C2
= 900 pF, and R3 = R4 = 5000 In each test w = 5000 rad/sec. Find the
relative permittivity of the specimen. [3+5+8]
8. (a) Why are ring specimens preferred over ro ds or strips for magnetic testing?
(b) Explain with the help of a neat diagram, a method for the determination of
B-H curve of a magnetic sample. Point out the various sources of errors and
the methods of minimizing them? [6+10]
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Code No: R05310202
Set No. 4
III B.Tech I Semester Regular Examinations, November 2007
ELECTRICAL MEASUREMENTS
(Electrical & Electronic Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) Explain the constructional details of PMMC instrument with neat sketch.
(b) Explain why PMMC instruments are the most widely used instruments? Ex-
plain their advantages and disadvantages. [8+8]
2. (a) Draw the phasor diagram of potential transformation.
(b) Explain the design and constructional features used in potential transformers
for reduction of ratio and phase angle errors. [8+8]
3. (a) Show that the power in a 3-phase system is measured by the use of
i. only one watt meter and
ii. two wattmeters.
Indicate how the power is determined. Comment on the accuracy of the mea-
surements when the load is unbalanced and the supply is a four-wire system.
(b) Two wattmeters used to measure the power input in a 3-phase circuit indicate
1000w and 500w respectively. Find the powerfactor of the circuit. [10+6]
i. when both wattmeters readings are positive
ii. When the latter is obtained by reversing the current coil connections.
4. Explain the working of the following with neat diagrams
(a) Maximum demand indicator.
(b) Trivector meter. [8+8]
5. Explain the following:
(a) Standardization procedure of d.c. cropmtons potentiometer.
(b) Applications of d.c. crompton potentiometer. [8+8]
6. (a) Classify the resistances from the point of view of measurements.
(b) Explain in brief the di erent methods used for measurement of medium resis-
tances.
(c) A voltmeter of resistance 500 and a milliammeter of 1 resistance are used
to measure a resistance by Ammeter-Voltmeter method. If the Voltmeter reads
20V and milli-Ammeter 100 mA, Calculate the value of measured resistance.
i. If the Voltmeter is put across the resistance and the milli-Ammeter con-
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Code No: R05310202
Set No. 4
ii. If the voltmeter is put across the resistance with ammeter connected on
the supply side. [3+8+5]
7. Explain the following:
(a) Why is schering bridge particularly suitable for measurement at high voltage?
(b) Why a spark is connected across resistance arms in a schering bridge?
(c) Why is vibration galvanometer widely used as detector for operation of A.C.
bridges?
(d) Why is wagner’s earthing device used in measurements by A.C. bridges?
[4+4+4+4]
8. (a) Derive an expression for equation of motion of a ballistic galvanometer?
(b) A ux meter is connected to a search coil having 500 turns and a mean area
of 500 mm2. The search coil is placed at the center of a solenoid 1 metre long,
wound with 800 turns. When a current of 5A is reversed, there is a de ection
of 25 scale divisions. Calculate the ux linkages per scale division. [10+6]