The digisense data logging sound level meter provides precision sound decibel measurements for product noise certification and reduction applications. The unit ut325 sound level meter is used to accurately generate a reading of the levels of ambient noise present within an environment. Fortunately for us, the devices that measure sound pressure level do the math for us, and give us the sound pressure level in decibels. Sound pressure measurement dewesoft training portal. As the sound level is increased a higher db spl level, i believe the dbfs value increases towards 0. This device is capable of measuring sound in four different ranges, stretching all the way from 30 decibles all the way to db with a frequency rating of 31. Measuring with a microscope microscope microscopes for.
Accordingly, wikipedia mentions that 1pa is equivalent to 94db spl. Measures air pressure of the single pipe or differential pressure of 2 pipes. Mm200 precise, compact and easytouse measuring microscope. It can also be used in homes, offices, schools, and theaters. Sound pressure decibel sound level meter 30dba noise. Hopefully, this paper will give you a feel for the relationship of pressure and decibels, and an understanding of the logarithmic scale of decibels to aid you in your sound related endeavors. Manual calibration for video measurement software when using digital microscope ysc digital. This sound level meter also includes a calibrator so you can verify and authenticate your results. Uks largest selection of sound level meters buy online. This kit makes it possible to measure the outdoor noise with a sound level meter over a long period of time. Buy certified sound level meters for highquality acoustics measurement. In addition, there is a brief discussion on velocity of instrumentation for the measurement of sound pressure level and frequency analyzers. The sensor has been designed to approximate the normal human ear in the range and intensity that it hears sounds. We offer a full range of precision measuring devices.
Slm814 digital sound pressure level meter noise decibel db. These makes the periodic measurement and data logging of sound level loggers more valuable than normal sound level meters. The additional kit for outdoor sound measurement pce4xxekit can be combined with the sound level meters pce428, 430 or pce432. Laeq, lcpeak, laf, lafmax, lafmin, sd, sel, e and ln. Digisense data logging sound meter with nisttraceable. Measure, monitor, and control noise levels within construction sites or factories with this sound level meter.
Widely used for gas measurement, calibration, and any troubleshooting of any gas pressure systems. Sound level meter offering you a complete choice of products which include lutron sound level meter sl 4023sd, programable sound level meter tes 52h, sound level meter lutron instruments sl4001, sound level meter lutron instruments model lm8102, pocket type mini sound level meter lutron sl4030 and auto range sound level meter lutron sl4012. The model 735 sound level meter provides 30 to db capability in three convenient measurement ranges low, med and hi with an accuracy of 1. Financing is available using kern hire purchase easy and convenient. The problem is to measure the leq and as you ask an open source software i think its. The sw sound level meter includes the octavo function for targeted sound analysis and is perfect for use in airports, building sites and factories. In addition, there is a brief discussion on velocity of instrumentation for the measurement of. Leq sound level meter su multifunctionalleq sound level meter with internal memory for measuring values rs232interface cable and optional software for noise measurement in industry, small trade, service provider and private household. Wholesale trader of sound level meter lutron sl40 sound level meter, ms6700 digital sound level meter, lutron sl 4010 digital db meter and lutron sl 4001 digital noise meter offered by swastik scientific company, mumbai, maharashtra. Digital microscopes with 3d microscopy can perform 3d surface measurements, assessing the contour, roughness and thickness of samples through white light interferometry, laser scanning and other 3d microscopy techniques. The progres capturepro software that is included with all progres cameras offers the ability to carry out measurements on both a live image or a captured image. Sound pressure level spl is a logarithmic measure of an absolute sound level, sound pressure or sound intensity referenced to a reference sound pressure amplitude ratio. Sound pressure level measurement using a digital mic. Digital sound pressure level meter decibel noise tester lcd measurement software.
Scales for a and c weighting are included so it is ideal for vehicle noise testing, race scrutineering, traffic or aircraft noise testing or any evidencebased noise testing. Our range of products include lutron sl40 sound level meter, ms6700 digital sound level meter, lutron sl 4010 digital db meter, lutron sl 4001 digital noise meter, sound calibration sc941 and sound calibration sc942. Now many foreign companies and even thai companies have set up facilities to produce their own brands of instruments and equipment such as scientific instruments, medical instruments and laboratory instruments. Mar 07, 2017 measurement application software for digital microscopes. A nondecaying maximum hold feature on every display captures and displays the highest sound pressure level of any noise until reset by the user. Just turn the mini sound level meter on, point it towards the noisesource and read the value on the display. Digisense data logging sound meter with nisttraceable calibration.
As this wikipedia link shows, the notation db spl uses the human hearing threshold p0 20umicropa, with 1papascal 1nnewtonm. Even two identical microscopes can have slightly different magnification factors when not calibrated. Sound level meter noise level meter pce instruments. Sound pressure level converter with selectable reference. Additional features include maxmin and hold functions, over and underrange indication, fastslow response, analog addc outputs, and usb connectivity.
This software offers a solution to users who want to increase or decrease the sound level of one or more mp3 audio files. Sound testers are compact, portable devices used to measure noise levels in a given environment. Lcd decibel meter digital sound level tester pressure audio noise measure tool. Shop online for a wide selection of casella cel24x digital sound level meters choice of four meters to meet your workplace noise. When using a compound high power microscope an eyepiece reticle is used to make measurements. Uks largest selection of sound level meters buy online with over 40 years of sound measurement experience, here at castle we are proud to be able to say we are the experts in sound. Thailand instruments companies have been traditionally importers and distributors of instruments to the industrial, commercial and medical sectors. With over 40 years of sound measurement experience, here at castle we are proud to be able to say we are the experts in sound. Using the sound pressure level converter with selectable reference pressure converter.
Use the included software to view your sound measurement data in graphical formats as well as record and download data, via usb connectivity, to your pc for further analysis. Hand held meters, data loggers and fixed displays for measuring and recording sound levels in db. Image pro ultra is the ultimate video measurement software for your realtime live video measurement and image process applications. In addition, it has an optional software cd and usb cable not included in the set which can be used as data. It conforms to iec616721 class 2 standards, making it ideal for osha and iec surveys. In air, sound pressure can be measured using a microphone, and in water with a hydrophone. While some prefer a microscope with measurement software, others choose a dedicated measuring microscope to meet their needs. Different sound pressure levels can be selected, such as, for example, laeq, lcpeak, laf.
Tagarno measurement application software works with tagarno fhd trend, fhd prestige and fhd uno and offers features such as pointto. High quality sound level loggers comply with international standards iec 60651, iec 60804 and ansi s1. Sound level pen is the smallest, lightest, easiest to carry sound meter in the world. Designed for recording and logging sound pressure level measurements for quality control, illness prevention, acoustic design or any other type of environmental sound measurement in domestic or industrial applications. Sound level data logger sound level loggers sound level. Both standard digital and digital 3d microscopes autoadjust to their needed application through integrated software. Measurement using a microscope is not limited to finding the actual size of a sample, but can. Digital sound level decibel meter lcd display measurement 30. The sound level meter for environmental and occupational noise measurement from cirrus optimus green have been designed with ease of use as the most important feature which lets you get on with measuring and controlling the noise. Scales for a and c weighting are included so it is ideal for vehicle noise testing, race scrutineering, traffic. The projector pro software displays the xl2 screen in realtime via usb on the connected windows or mac computer. With this leq sound level meter, the environment volume is easily measured in decibel.
When we measure everyday items most of us will grab a ruler in order to make a measurement. This is defined as sound pressure level spl and is quite a complex thing to get to grips with. What is sound pressure level and how is it measured. Portable sound camera and sound pressure meter for visual sound level measurement in loud environments, it is often difficult to pinpoint the source of a sound. Leqsound level meter su multifunctionalleqsound level meter with internal memory for measuring values rs232interface cable and optional software for noise measurement in industry, small trade, service provider and private household. Sound level measurement software free download sound. The need to measure an object to a high degree of resolution. We have a recent blog post on sound level meter applications. Manual calibration for video measurement software when using. A highquality sound level meter for measuring a wide range of sound pressure levels including. The mini soundlevel meter is a class ii mini soundlevel meter. All meters in the series have a low and high measurement range that covers a full 70db on each range. The scale on the eyepiece reticle does not have standard units of measure and the values change at different. Despite its small size sound level pen is a full function type 2.
Sound level meters and noise dosimeters data sheets on globalspec. Rew is free room acoustics analysis software for measuring and analysing room and loudspeaker responses. When using a microscope, generally magnification is higher and a ruler will not work unless you are using a very low power stereo microscope. Casella cel242k1 digital logging sound level meter type.
Dedicated measuring microscope or measurement software. Nikon metrology offers high precision, compact measuring microscopes featuring the latest in digital imaging technology. Casella cel242k1 digital logging sound level meter type 2 kit. Sound level meters are generally described as class 1 or class 2. There are many reasons to make visual measurements using some form of magnification. Buy certified sound level meters measurement shop uk. Sound pressure level converter with selectable reference pressure. Phase contrast microscopes fluorescence microscopes inverted microscopes. We provide thousands of sound meters for a vast range of applications in just about every different market sector you could think of.
Enhance low frequency and vibration functionality on your sound level meter and vibration. Sound level meters product categories instruments direct. The large dynamic range copes with both the loudest noises and those just above the noise floor and the frequency range, extended with the lowfrequency option, spans from 20 khz down to infrasound for measurement of noise sources suspected of emitting very low frequency noise. Sound pressure or acoustic pressure is the local pressure deviation from the ambient atmospheric pressure, caused by a sound wave. With this leqsound level meter, the environment volume is easily measured in decibel. Digital sound level decibel meter lcd display measurement. In acoustics, sound is a change in pressure relative to atmospheric.
This dual range sound level sensor accurately measures either sound pressure level in decibels dba or waveform mv. Accurate pressure monitor decibel digital handheld sound. The sound level on a basic level how loud something is can be perceived differently by different people so we need to have a means to get an objective measurement of sound level expressed in numerical terms. Sep 25, 20 steps on doing calibration when using digital microscope measurement software ysc image pro ultra.
The mini sound level meter is a class ii mini sound level meter. Monitoring sound levels is important for occupational health and safety as well as in situations where your equipment, music or crowds of people can be too loud. Manual calibration for video measurement software when. In addition, the level of difficulty can depend on what datalogging hardware andor software is used. This vi then applies the specified weighting filter, computes a thirdoctave spectrum, and measures the equivalent continuous level leq and a decimated exponential average level. Just turn the mini soundlevel meter on, point it towards the noisesource and read the value on the display.
Casella cel242k1 digital logging sound level meter type 2. Today, both factoryuse and general use measuring microscopes are produced for a wide range of different applications, with the former specializing in miniature components while the latter is capable of measuring larger specimens. Making a sound pressure measurement with ni labview. Supplied with windshield, soft case and calibration certificate. Microscope calibration can help ensure that the same sample, when assessed with different microscopes, will yield the same results. Site surveys help define the noise profile of a room, measuring vibration, acoustic, andor electromagnetic. Suitable where accuracy, repeatability or validation is required. From what i gather, if the sound level is too high and the dbfs value is 0 then clipping occurs and the fidelity of the sound received by the microphone is degraded by the microphone.
In addition, the spatial variation of sound pressure i. How to control vibration noise for superresolution. Nondecaying maximum hold captures and displays the highest sound pressure level of any noise until reset. The optional software package is ideal for datalogging in spreadsheet format file for analyzing measurement data further. Sound meters measure sound by measuring the pressure given off by sound waves on the devices microphone. Sound level meter lutron sound level meter sl 4023sd.
Slm814 this is a highprecision sound level meter that provides analog signal output and measures sound pressure level with measuring accuracy up to 2db. With clear numeric values as well as an intuitive and innovative way of predicting the future sound level, 10eazy is a unambiguous and highly intuitive user interface coupled with easy to use turnkey hardware for a complete measurement solution. Sper scientifics integrating sound datalogger measures sound pressure level spl according to a or c weighting and integrates the weighted spl over an established length of time, such as an 8hour workday, to calculate cumulative sound exposure leq. The user simply adds the required files or an entire folder. The mini soundlevel meter pcemsm 1 characterizes itself through simple onehandusing. The noise collected is contrasted with the microscope noise specification to determine if the. Measurement application software for digital microscopes. Jul 08, 2016 measurements, like sound pressure level, expressed in db always depend on their reference value, here psub0. Sound level meter db100 class 2 sound level meter, as per international norms 30 to db, a frequency weighting, slow and fast time weighting, laeq time averaged sound level. Shop online for a wide selection of casella cel24x digital sound level meters choice of. Hire purchase gives you the option of purchasing any product from the range against a simple monthly installment. Best for measuring the ventilation and air condition systems.
1097 1344 754 1434 679 1508 788 865 1538 875 1379 936 139 967 959 200 62 1502 149 945 1557 725 212 197 350 343 913 1388 1175 1375 288 1094 569 1169 1145 1413 341 1187 965 865 800 274 858 1409