Measurement of working environment in a factory

The sound pressure level from factory can be monitored by using the sound level meters. Separate the microphone from main unit of LA-1440 max. 100m and set it at the boundary line between factory and private house.

Separate the microphone from main unit of LA-1440 and set it at the boundary line between factory and private house which is required noise monitoring. Then place the main unit of LA-1440 in the office away from the microphone 200 m.

The LA-1410 is cost-effective integrating sound level meter with simple operation. It measures and displays the sound which is generated from machine during operation at every one second over again. The LA-1410 has a function to measure the maximum value and time-average sound level (equivalent continuous sound level, Leq) of time duration from start to stop.

This example shows how to measure the time-average sound level (equivalent continuous sound level, Leq) which is generated from machine during operation.

This example shows how to measure and monitor the sound level by using continuous measurement function of LA-1440. For example, measure the maximum value and time-average sound level (equivalent continuous sound level, Leq) continuously for an hour. This continuous measurement function allows long time measurement at fixed point outdoors.

This example shows how to measure and monitor the sound level by continuous measurement function of LA-4440. For example, measure the maximum value and time-average sound level (equivalent continuous sound level, Leq) continuously for an hour. This continuous measurement function allows long time measurement at fixed point outdoors.

Measurement of sound level at classroom

This example shows how to measure the NC (Noise Criteria) value as the environmental evaluation item of the background noise in the state of air-conditioned and calm space such as indoor, hall and hospital.

When you have to think about the setting of sound insulating wall or partition with absorptive material in order to cut off the noise from machine etc. in a factory, you need to study the frequency distribution of sound characteristics and choose the suitable and effective material for blocking out the noise according to its frequency characteristics.

This example shows how to measure and analyze the sound characteristics of the environmental noise which is generated from a factory or hall etc. by using the sound level meter and FFT Analyzer.

In this example, the object which generates the sound can be recorded and replayed as a video corresponding to its data of sound level synchronously. It allows the visual checking of its causes when there is the sudden fluctuation in sound level at automatic sound measurement.

This example shows how to analyze tire squeal sound which occurs in sliding velocity of a tire. Record the squeal sound to an SD memory card in the LA-5560 up to 15 minutes per measurement. By using the OS-2720 FFT analysis pack, it can play back the recorded data on a PC with sound function or perform FFT analysis.

This example shows how to inspect component parts of a railroad vehicle by using the LA-3260 High functional sound level meter. Hammer the component parts and measure the hammering sound while checking it through headphones

This example shows how to measure the sound and vibration at the time when a train is going by. The measured sound and vibration data can be used for off-line analysis and evaluation on a PC.

The loudness level is used as a value index for evaluation of improvement effect before and after countermeasures for noise reduction.

We can easily perform FFT analysis of the noise which is generated from home appliances or the like by sound level meter.

We can easily perform FFT analysis of the noise which is generated from home appliances or the like by sound level meter. FFT, 1/1・1/3 octave, and level trend analyses are performed by using the sound level meter as well as frequency analyzer.

In this example, the sound level meter with comparator function makes determination of the operating noise of the product on the production line which is generated from the products such as OA equipment and home appliance.

In this example, the small operated sound from electrical parts such as a small motor is measured by sound level meter with high sensitivity microphone in order to analyze and make OK/NG determination.

In this example, you can perform FFT analysis of noise from operated product and make OK/NG determination with the operating noise level at the specified frequency bands in the analyzed data on the final testing of production line.

In this example, ｔracking analysis of sound and vibration from rotationing machine is performed. The sound level generated from rotationg machine is changed with respect to the number of rotations. The changing of sound level due to rotational changes is analyzed with precision sound level meter etc..