StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

Industrial Noise - Lab Report Example

Cite this document
Summary
Such sound is normally loud and unpleasant to the human ear and usually prevents one from perceiving the required sound. This may include such things as other people’s conversations,…
Download full paper File format: .doc, available for editing
GRAB THE BEST PAPER94.4% of users find it useful
Industrial Noise
Read Text Preview

Extract of sample "Industrial Noise"

Audiometry Industrial hygiene lab (SFTY 315L) Introduction Noise is described as any sound that is unwanted at a place and is normally produced randomly. Such sound is normally loud and unpleasant to the human ear and usually prevents one from perceiving the required sound. This may include such things as other people’s conversations, sound of machinery, and any other sound that prevents one from perceiving the required sound. Noise in itself has a number of health effects to the human body and health. Noise causes hearing loss, cardiovascular related diseases like high blood pressure, stress, annoyance, and retards child’s physical development. This experiment was set up to measure hearing sensitivity for different people and for their different ears. The main lesson in this experiment is to show how noise pollution affects different people in the society differently. The audiometry equipment produces specific tones into the ear, which tests the hearing sensitivity of the entire auditory system. Pure tones are presented at different frequencies across the range of human hearing. The outcome is then recorded to see the difference in hearing between different individuals and between different ears for the same individual. The following formulas can then be used to calculate the different aspects of sound at the specified frequency. Such things as frequency, wavelength, velocity, and pressure of sound are crucial to determine the level at which one’s ear can perceive sound. Time to time experimentation using this method will help to conserve hearing. This experiment therefore is normally called hearing conservation program. Maximum exposure time: T max = 8 (Formula 1) 2 ((L - 90) / 5) Noise dose: D (%) = C * 100 (Formula 2) T max Estimated exposure (single protection): L adj = L - (NRR-7) (Formula 3) Estimated exposure (double protection): L = L adj - [(NRR h - 7) + 5] (Formula 4) Objectives The objective of this experiment is to perform audiometry as part of the hearing conservation program. The experiment is supposed to highlight the effect of noise on hearing to different people in a class or organization. The hearing conservation program is normally aimed at analyzing the effect of noise to an individual over time and helps establish the maximum exposure time required to reduce hearing loss. The program also helps to ascertain the noise dose required to a person over some period. This helps to put in measures to reduce the effect of noise to an individual and thus prevent hearing loss. Instruments and materials This experiment needed a number of instruments and materials, which are listed below: i. Belton audiometry set: In this experiment, two different Belton audiometry sets were used; model 9D and model 12D. They had initial measurements of 0 Hz in frequency and 0 decibels in sound level. The audiometry sets were to measure frequency from 0 Hz to 8000 Hz and measure sound intensity from 0 dB to 120 dB. ii. Audiometer sheets were also needed for recording the different frequencies at which a person perceived sound. Two sheets were needed, one for each person. Methodology Once the experiment is set up with the Belton audiometry and the headphones, one person is supposed to wear the audiometry headphones as the other person adjusts the hearing level and the frequency of the audiometry from 125 Hz up to 8000 Hz. The frequency is first set then the hearing level knob is adjusted to get the level at which an individual perceives sound at the specified frequency. The experiment is done for the left and the right ear independently. The hearing level for the different frequencies is then recorded on the audiometer sheets to show the level at which an individual perceived sound or was able to hear quality sound. The audiometry set is initially at zero frequency and is varied every time the experiment is repeated up to the highest frequency, which is 8000 Hz. The operator of the audiometry and the subject hearing the sound are supposed to be aligned such that the subject does not see the audiometry equipment. The operator is supposed to face the back of the subject. This is a precaution to enable recording of accurate results from the hearing exercise. The experiment is repeated 7 times for each ear and the results recorded. Results The results of the experiment were recorded as shown below: Table 1: Results for the first subject Table 2: results of the second subject The results were analyzed using graphs and gave the following set of graphs. Graph 1: Left ear of the first subject Graph 2: Right ear of the first subject Graph 3: Left ear of the second subject Graph 4: Right ear of the second subject From the results tabulated above, it is clear that every individual perceives sound at different levels. To add to this, an individual can perceive sound differently in each specific ear. It can also be seen that perceiving sound is not directly proportional to frequency and sound level. Different frequencies are perceived at different sound intensities. This shows that different intensities of sound and frequency affect our ears differently. Conclusion In conclusion, it is clear that noise has negative effects on the human body and especially to the ears. This is evident from the experiment, which shows that different individuals perceive sound differently. To add to this, the different ears for the same person perceive sound differently. A number of factors can affect the accuracy of audiometry experiments; one of the most common is the headphone fit. This is how tight or how well each ear’s headset fits to give optimum sound. Another Factor that can affect audiometry is background noise. Such noise affect one in that he perceives sound at a later stage other than the required one. This causes errors in the experiment. To add to these, the learning effect also affects audiometry experiments. The ear used to test the accuracy of the experiment tends to be poor in perceiving sound as compared to the other ear. Technical limitations also affect the accuracy of the experiment. Such things as the accuracy with which sound can be perceived and the accuracy with which the sound intensity knob is adjusted all affect the accuracy of the experiment. Some subjects may delay to report if they perceive sound, which causes errors in the experiment. References National Health and nutrition examination survey. "Audiometry procedures manual." 1 January 2003. National Health and nutrition examination survey. http://www.cdc.gov/nchs/data/nhanes/nhanes_03_04/AU.pdf. 21 April 2014. Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(Industrial Noise Lab Report Example | Topics and Well Written Essays - 750 words, n.d.)
Industrial Noise Lab Report Example | Topics and Well Written Essays - 750 words. https://studentshare.org/health-sciences-medicine/1822531-industrial-noise
(Industrial Noise Lab Report Example | Topics and Well Written Essays - 750 Words)
Industrial Noise Lab Report Example | Topics and Well Written Essays - 750 Words. https://studentshare.org/health-sciences-medicine/1822531-industrial-noise.
“Industrial Noise Lab Report Example | Topics and Well Written Essays - 750 Words”. https://studentshare.org/health-sciences-medicine/1822531-industrial-noise.
  • Cited: 0 times

CHECK THESE SAMPLES OF Industrial Noise

Noise Control Radon UV-Radiation

In the report of SCENIHR (2008), nightclubs and Industrial Noise have the same adverse hearing effects.... n the report of SCENIHR (2008), nightclubs and Industrial Noise have the same adverse hearing effects.... noise Pollution Building a nightclub near residential spots may be considered an act of indifference towards the health of the people living nearby.... hellip; noise pollution is the modern plague brought about by modernization....
2 Pages (500 words) Essay

The Development of West Torrens Council Area

The ground floor level of all the dwellings must be elevated above the design flood level to avoid the risk of the people and properties Areas affected within 100 metres by Industrial Noise and other impacts or residential developments located near the industrial boundaries should have a design to minimize potential negative visual and noise from the non residential activities....
5 Pages (1250 words) Essay

Compare and contrast the OSHA noise standard and the ACGIH noise exposure recommendations

There is a significant comparison from the Occupational Safety and Health Administration (OSHA) with American Conference of Industrial Hygienists (ACGIH), such that OSHA was established in 1971 to provide safety measures on creating a better working environment for all employees… The organization focuses of the following strategies: first, they aim to have a strong, fair and effective enforcement in safety and health; second to outreach, educate and to comply on the assistance; and lastly, to develop partnership and cooperative Running Head: OSHA noise standard ACGIH noise exposure recommendations Compare and Contrast the OSHA noise standard and the ACGIH noise Exposure Recommendations(Name)(University Affiliation)(Date)Compare and Contrast the OSHA noise standard and the ACGIH noise Exposure Recommendations There is a significant comparison from the Occupational Safety and Health Administration (OSHA) with American Conference of Industrial Hygienists (ACGIH), such that OSHA was established in 1971 to provide safety measures on creating a better working environment for all employees in the United States....
2 Pages (500 words) Essay

Depeche Modes 2005 Playing the Angel

The “industrial” noise at the beginning of the track transform into pulsing rhythm at the background and the reserved vocal line of David Gahan.... Not did I only listen to this CD but also attended a concert of this band back during their world tour in 2006.... However in the essay I will concentrate more on the CD tracks… d the overall mood of the album since at the concert the band also performed quite a lot of their older songs, and this makes it harder to analyse the CD as a single entity. Playing the Angel is DM's 11th CD, and it was released four years after their previous Exciter album....
3 Pages (750 words) Essay

Noise Pollution

This research paper brings up a concern about noise pollution, as an unwanted sound that affects people and the environment.... Together with water, soil and air pollution, noise has been acknowledged as a serious pollutant.... The noise levels have risen considerably in the past.... hellip; The main idea of this research paper is that noise pollution is a short-lived or transient problem unlike other forms of environmental pollution....
2 Pages (500 words) Research Paper

LSP 5 Ethics - Discrimination and Affirmative Action

Occupational noise, dust and heat could also be possible risks.... Working in the wood mills is the most dangerous occupations in the United States according to OSHA with hazards ranging from wiring, static and moving equipment, and components of products being manufactured to occupational noise and dangers of respiratory infections.... The work place is normally safe today unlike during the industrial revolution where employees worked long hours mostly twelve hours, which in return increased fatigue and high chances of accidents....
2 Pages (500 words) Essay

Awareness on Effects of Environmental Pollution

Pollution can occur the form of air pollution, water, soil, noise light among other forms.... Environmental pollution has been a thorny issue since the beginning of life.... Nations… after Nations draft legislations and participate in creating international policies just in an attempt to safeguard the environment from harmful greenhouse gases which is the major pollutant across the globe....
3 Pages (750 words) Essay

Pollock, Gottlieb and Newman

The example of this was electronic music of which Varese was considered as the father, which was basically an assembly of Industrial Noise that became aesthetically pleasing to hear due to its arrangement and organization.... The essay "Pollock, Gottlieb and Newman" compares these three artists....
2 Pages (500 words) Essay
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
Contact Us