1. Research and Problem Identification
Explain why posture monitoring is important (e.g., for preventing back pain or improving
ergonomics).
Identify the gap this device addresses (e.g., lack of affordable or simple wearable
posture monitors).
2. System Design
Break down the system into subblocks:
1. Strain Gauge Sensor:
Simulate or assume changes in resistance as the strain gauge
stretches/compresses.
Model the strain gauge as a variable resistor in LTSpice for simulation.
2. Wheatstone Bridge:
Convert the resistance changes into a small voltage signal.
Ensure the bridge is balanced when no strain is applied.
3. Amplification Circuit:
Use an instrumentation amplifier to boost the Wheatstone bridge output to
a readable level.
4. Output Display:
Decide how the output will be displayed (e.g., a basic voltage reading or a
trigger for an alert).
Use datasheet specifications to choose components for the bridge and amplifier
(resistors, op-amps).
3. Simulation in LTSpice
Simulate each circuit block:
1. Wheatstone bridge with a variable resistor representing the strain gauge.
2. Amplification circuit (e.g., with an LM358 op-amp or INA128 instrumentation
amplifier).
3. Full system to verify how changes in resistance translate to voltage output.
If youre unfamiliar with LTSpice, I can help you set up these simulations step-by-step.
4. Abstract
Write a half-page abstract summarizing the project:
Group name and members.
Purpose of the project.
High-level overview of the system.
5. Presentation
Prepare a 10-minute presentation:
Define the problem and solution.
Explain each circuit block, with simulations for the Wheatstone bridge and
amplifier.
Dante Alighieri played a critical role in the literature world through his poem Divine Comedy that was written in the 14th century. The poem contains Inferno, Purgatorio, and Paradiso. The Inferno is a description of the nine circles of torment that are found on the earth. It depicts the realms of the people that have gone against the spiritual values and who, instead, have chosen bestial appetite, violence, or fraud and malice. The nine circles of hell are limbo, lust, gluttony, greed and wrath. Others are heresy, violence, fraud, and treachery. The purpose of this paper is to examine the Dante’s Inferno in the perspective of its portrayal of God’s image and the justification of hell.
In this epic poem, God is portrayed as a super being guilty of multiple weaknesses including being egotistic, unjust, and hypocritical. Dante, in this poem, depicts God as being more human than divine by challenging God’s omnipotence. Additionally, the manner in which Dante describes Hell is in full contradiction to the morals of God as written in the Bible. When god arranges Hell to flatter Himself, He commits egotism, a sin that is common among human beings (Cheney, 2016). The weakness is depicted in Limbo and on the Gate of Hell where, for instance, God sends those who do not worship Him to Hell. This implies that failure to worship Him is a sin.
God is also depicted as lacking justice in His actions thus removing the godly image. The injustice is portrayed by the manner in which the sodomites and opportunists are treated. The opportunists are subjected to banner chasing in their lives after death followed by being stung by insects and maggots. They are known to having done neither good nor bad during their lifetimes and, therefore, justice could have demanded that they be granted a neutral punishment having lived a neutral life. The sodomites are also punished unfairly by God when Brunetto Lattini is condemned to hell despite being a good leader (Babor, T. F., McGovern, T., & Robaina, K. (2017). While he commited sodomy, God chooses to ignore all the other good deeds that Brunetto did.
Finally, God is also portrayed as being hypocritical in His actions, a sin that further diminishes His godliness and makes Him more human. A case in point is when God condemns the sin of egotism and goes ahead to commit it repeatedly. Proverbs 29:23 states that “arrogance will bring your downfall, but if you are humble, you will be respected.” When Slattery condemns Dante’s human state as being weak, doubtful, and limited, he is proving God’s hypocrisy because He is also human (Verdicchio, 2015). The actions of God in Hell as portrayed by Dante are inconsistent with the Biblical literature. Both Dante and God are prone to making mistakes, something common among human beings thus making God more human.
To wrap it up, Dante portrays God is more human since He commits the same sins that humans commit: egotism, hypocrisy, and injustice. Hell is justified as being a destination for victims of the mistakes committed by God. The Hell is presented as being a totally different place as compared to what is written about it in the Bible. As a result, reading through the text gives an image of God who is prone to the very mistakes common to humans thus ripping Him off His lofty status of divine and, instead, making Him a mere human. Whether or not Dante did it intentionally is subject to debate but one thing is clear in the poem: the misconstrued notion of God is revealed to future generations.
References
Babor, T. F., McGovern, T., & Robaina, K. (2017). Dante’s inferno: Seven deadly sins in scientific publishing and how to avoid them. Addiction Science: A Guide for the Perplexed, 267.
Cheney, L. D. G. (2016). Illustrations for Dante’s Inferno: A Comparative Study of Sandro Botticelli, Giovanni Stradano, and Federico Zuccaro. Cultural and Religious Studies, 4(8), 487.
Verdicchio, M. (2015). Irony and Desire in Dante’s” Inferno” 27. Italica, 285-297.
Problem Statement
Poor posture can lead to a host of health problems, including chronic back pain, neck pain, and headaches. While several wearable posture correction devices exist, many are expensive and lack user-friendliness. This project aims to develop a simple, affordable, and effective posture monitoring system.
System Design
1. Strain Gauge Sensor:
- Function: Detects changes in posture by measuring the strain on the body.
- Implementation: A strain gauge, a resistive sensor that changes resistance with strain, can be placed on the back to measure postural changes.
Problem Statement
Poor posture can lead to a host of health problems, including chronic back pain, neck pain, and headaches. While several wearable posture correction devices exist, many are expensive and lack user-friendliness. This project aims to develop a simple, affordable, and effective posture monitoring system.
System Design
1. Strain Gauge Sensor:
- Function: Detects changes in posture by measuring the strain on the body.
- Implementation: A strain gauge, a resistive sensor that changes resistance with strain, can be placed on the back to measure postural changes.
- LTSpice Modeling: A variable resistor can simulate the strain gauge, and its resistance can be varied to represent different postures.
2. Wheatstone Bridge:
- Function: Converts the resistance change from the strain gauge into a measurable voltage.
- Implementation: The strain gauge is one arm of the bridge, and fixed resistors form the other three arms. A DC voltage source (e.g., 5V) is applied across the bridge.
- LTSpice Modeling: Use ideal voltage sources and resistors to simulate the bridge. Vary the resistance of the strain gauge to observe the output voltage.
3. Amplification Circuit:
- Function: Amplifies the small voltage output from the Wheatstone bridge to a level suitable for further processing or display.
- Implementation: An instrumentation amplifier, such as the LM358, can be used to amplify the differential voltage from the bridge.
- LTSpice Modeling: Use the op-amp model in LTSpice to simulate the amplifier circuit.
4. Output Display:
- Options:
- Analog meter: A simple and visual display.
- Digital display: Provides precise numerical readings.
- Buzzer or vibration motor: Alerts the user to poor posture.
- Integration with a smartphone app: For real-time monitoring and data analysis.
- LTSpice Modeling: While LTSpice can’t directly simulate displays, it can help visualize the amplified voltage signal, which can be mapped to a specific display output.
Simulation in LTSpice
- Create the Wheatstone Bridge: Use voltage sources, resistors, and a variable resistor to simulate the strain gauge.
- Add the Instrumentation Amplifier: Use the op-amp model to create a differential amplifier circuit.
- Simulate: Vary the resistance of the simulated strain gauge to observe the output voltage.
- Analyze: Analyze the output waveform to understand the relationship between strain and voltage.
Abstract
This project aims to develop a simple, affordable, and effective posture monitoring system. The system utilizes a strain gauge sensor to detect changes in posture, a Wheatstone bridge to convert the resistance change into a voltage signal, and an instrumentation amplifier to amplify the signal. The amplified signal can be displayed on an analog or digital meter or used to trigger an alert. By monitoring posture, individuals can improve their health and well-being.
