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The "DSVI-MA" can solve issues that have been challenges during sensory inspections of sound and vibration conducted by humans, such as the point that "human perception is not a quantitative judgment standard" and the point that "it becomes an obstacle to automation and cost reduction in manufacturing." All necessary functions for inspection are built into the main unit. Frequency analysis can be performed on-site at the time of measurement. 【Features】 ■ Easy creation of inspection standards ■ Space-saving ■ Acceleration sensor mounting fixtures available (optional) *For more details, please refer to the PDF materials or feel free to contact us.

The "DSVI-MB" is an abnormal noise inspection device that automatically determines the quality of sound and vibration using an inspection algorithm based on the Mahalanobis-Taguchi method (MT method). By measuring sound and vibration with up to 4 channels and determining their quality, it is possible to identify the source of abnormal sounds and vibrations. Additionally, it can simultaneously measure sound and vibration, as well as measure vibrations in three axial directions. By simply preparing data from 40 good units, inspection standards can be easily created, and an immediate improvement in the accuracy and efficiency of abnormal noise inspections can be expected after implementation. ★ Please refer to the basic information section for more details. 【Features】 ■ Easy creation of inspection standards, ready for immediate use ■ Space-saving design equipped with all necessary functions for inspection ■ Frequency analysis can be performed on-site with the measured data ■ Mounting fixtures for acceleration sensors are also available (optional) * You can view the catalog and case studies via "PDF Download." Please feel free to contact us with any inquiries.

At Daiou Electric Co., Ltd., we are offering a collection of case studies titled "Application Examples of Noise Inspection Devices," which includes examples of quantifying and automating the subjective auditory and vibration inspections using noise inspection devices. The collection features a total of 14 cases, including "Noise Inspection of Automotive Parts," "Noise Inspection of Air Conditioner Indoor Units," and "Inspection of Output Sound from Voice Guidance Devices." Our "Noise Inspection Device" has achieved the capability to automatically and quantitatively inspect the quality of sound and vibration through an inspection algorithm utilizing the Maharano Vista Guchi method. [Contents (Excerpt)] ■ What is a Noise Inspection Device ■ Case 1: Noise Inspection of Automotive Parts ■ Case 2: Noise Inspection of Drive Units for Electric Assist Bicycles ■ Case 3: Noise Inspection of Air Conditioner Indoor Units ■ Case 4: Noise Inspection of Motors for Air Conditioner Outdoor Units *For more details, please refer to the PDF document or feel free to contact us.

Contract development of dedicated automatic machines for equipment production, including electronic components. ■ Development System We have a consistent system from conceptual design, mechanical design, electrical design, software design, to assembly and adjustment. ■ Main Production Achievements - For mobile phones: transport devices, testing devices, assembly jigs - For automotive electrical components: transport devices, testing devices - For printed circuit boards: transport devices, testing devices - For electronic devices: transport devices, testing devices - For blood test pins: transport - For blood test pins: transport - For individual packaging boxes: transport devices, loading devices ■ For more details, please contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to the noise inspection of air conditioning indoor units. In the shipping inspection of residential air conditioning indoor units, traditionally, operators listened to the operational sounds for inspection. This method can lead to variability in judgment due to human hearing, resulting in unstable quality. However, by using this device, quantitative inspection becomes possible. [Case Study] ■ Issues - In the shipping inspection of residential air conditioning indoor units, operators traditionally listened to the operational sounds for inspection. - Variability in judgment occurs with human hearing, leading to unstable quality. ■ Application Results - Quantitative inspection is possible by using the Noise Inspection Device. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Noise Inspection Device" was applied to the noise inspection of multifunction devices. It inspects whether any abnormal sounds occur when the finished product operates in various modes, whereas previously, operators conducted auditory inspections in a soundproof room. In this case, abnormal sounds are detected by using an accelerometer to measure vibrations. This helps reduce equipment costs, such as the need for a soundproof room. [Case Study] ■ Challenge - Previously, operators conducted auditory inspections in a soundproof room. ■ Application Results - Abnormal sounds are detected by using an accelerometer to measure vibrations. - Equipment costs, such as the need for a soundproof room, can be reduced. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Noise Inspection Device" was applied to inspect the output sound of a voice guidance device. In this case, the remote control with voice guidance functionality previously required an operator to listen for abnormalities, such as muffled or distorted sound due to speaker assembly issues. By using a directional microphone and this device, we can achieve quantitative automatic inspection. [Case Study] ■ Challenge - Previously, operators listened for abnormalities, such as muffled or distorted sound due to speaker assembly issues. ■ Application Results - By using a directional microphone and the noise inspection device, we can achieve quantitative automatic inspection. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to the noise inspection of motors for air conditioner outdoor units. In the shipping inspection of motors for air conditioner outdoor units, traditionally, operators would use a stethoscope to determine whether there were any abnormal sounds or vibrations. By using this device, the inspection can be fully automated, leading to a reduction in process time. [Case Study] ■ Challenge - Traditionally, operators used a stethoscope to determine whether there were any abnormal sounds or vibrations. ■ Application Result - By using the Noise Inspection Device, the inspection can be fully automated, resulting in a reduction in process time. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" has been applied to the inspection of abnormal sounds in automotive components. In recent years, with the increasing demand for high quality in automobiles, there has been a growing requirement for the sound and vibration of components that incorporate motors. By using this device for inspections of the motor alone or for units after the motor has been integrated, we can achieve stabilization of quality. [Case Study] ■ Challenges - In recent years, with the increasing demand for high quality in automobiles, there is a growing requirement for the sound and vibration of components that incorporate motors. ■ Application Results - By using the Noise Inspection Device for inspections of the motor alone or for units after the motor has been integrated, we can achieve stabilization of quality. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Noise Inspection Device" was applied to the noise inspection of drive units for electric assist bicycles. Previously, during post-assembly inspections, operators would listen to sounds to make judgments. However, by using this device, it is possible to quantitatively detect products that emit sounds different from normal ones. [Case Study] ■ Challenges - In electric assist bicycles, the occurrence of abnormal sounds during use greatly affects product value and can lead to complaints. - Previously, operators judged sounds during post-assembly inspections. ■ Application Results - By using the noise inspection device, it is possible to quantitatively detect products that emit sounds different from normal ones. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here, we introduce a case where the "Noise Inspection Device" was applied to the vibration inspection of exhaust fans. Traditionally, abnormal vibrations were inspected by having operators directly touch the rotating products, which posed safety concerns. In this case, an automatic fixture for attaching and detaching an accelerometer was used, enabling automatic inspection when combined with this device. 【Case Study】 ■ Issues - Traditionally, abnormal vibrations were inspected by having operators directly touch the rotating products, which posed safety concerns. ■ Application Results - By using a fixture that automatically attaches and detaches the accelerometer, automatic inspection becomes possible when combined with the noise inspection device. *For more details, please refer to the PDF document or feel free to contact us.

Our "Abnormal Sound Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibrations. Here, we introduce a case where the "Abnormal Sound Inspection Device" was applied to the inspection of abnormal sounds in voice output boards. It detects defects that cause abnormal sounds due to issues with the IC chips within the board. Inspecting products produced in large quantities through human auditory means requires significant effort and increases the likelihood of oversight; however, by using this device, stable quality inspections can be achieved. [Case Study] ■ Challenges - Inspecting products produced in large quantities through human auditory means requires significant effort and increases the likelihood of oversight. ■ Application Results - By using the Abnormal Sound Inspection Device, stable quality inspections can be achieved. *For more details, please refer to the PDF document or feel free to contact us.

Our "Abnormal Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Abnormal Noise Inspection Device" was applied to the inspection of abnormal noise in small motors used for optical products. During shooting, the operational sounds of small motors used for the shutter, focus, and zoom can have an impact, making sound inspection necessary. By using this device, the process of inspection that was previously done by operators in a soundproof box can be automated. [Case Study] ■ Challenge - During shooting, the operational sounds of small motors used for the shutter, focus, and zoom can have an impact, making sound inspection necessary. ■ Application Results - By using the abnormal noise inspection device, the process of inspection that was previously done by operators in a soundproof box can be automated. *For more details, please refer to the PDF document or feel free to contact us.

Our "Abnormal Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Abnormal Noise Inspection Device" was applied to detect abnormalities in machining equipment. It detects processing defects caused by chipping or wear of the blades of cutting machines and polishing machines through the sound and vibration during processing. [Case Study] ■ Applicable Product: Abnormal Noise Inspection Device "DSVI-MA" ■ Application Results - Detects processing defects caused by chipping or wear of the blades of cutting machines and polishing machines through the sound and vibration during processing. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes a testing algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. Here we introduce a case where the "Noise Inspection Device" was applied to the inspection of transformer humming sounds. By using this device to measure vibrations, we can automate inspections in a soundproof room. [Case Study] ■ Applicable Product: Noise Inspection Device "DSVI-MA" ■ Application Results - By using this device to measure vibrations, inspections in a soundproof room can be automated. *For more details, please refer to the PDF document or feel free to contact us.

Our "Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibration. We would like to introduce a case where the "Noise Inspection Device" was applied to the noise inspection of air conditioning compressors. Traditionally, the presence of abnormal sounds and vibrations was determined by the auditory and tactile senses of the operator. In this case, simultaneous inspection of sound and vibration was achieved using a microphone and an accelerometer. [Case Study] ■ Challenge - Previously, there was variability in judgment due to inspection relying on the auditory and tactile senses of the operator. ■ Application Results - By using DSVI-MB, simultaneous inspection of sound and vibration was achieved with a microphone and an accelerometer. *For more details, please refer to the PDF document or feel free to contact us.

Our "Abnormal Sound Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method to automatically and quantitatively inspect the quality of sound and vibrations. Here, we introduce a case where the "Abnormal Sound Inspection Device" was applied to the inspection of abnormal sounds in speakers. Traditionally, the presence of abnormal sounds was determined by the auditory perception of the operator. In this case, automatic inspection was achieved by playing inspection sound sources from the abnormal sound inspection device to a wireless speaker. [Case Study] ■ Challenge - Traditionally, there was variability in determination due to inspection based on the operator's auditory perception. ■ Application Results - By using DSVI-MA, automatic detection of abnormal sounds was achieved using a microphone or accelerometer. *For more details, please refer to the PDF document or feel free to contact us.

Our "Abnormal Noise Inspection Device" utilizes an inspection algorithm based on the Maharano Vista Guchi method, allowing for automatic and quantitative inspection of sound and vibration quality. We have recently added a noise-canceling feature to the multi-channel version of the abnormal noise inspection device, "DSVI-MB," using multiple accelerometers and microphones. Previously, depending on the inspection environment, operational sounds from surrounding equipment, noise, and vibrations from conveyors could interfere as noise, making accurate inspections difficult. By using the new noise-canceling feature, we can eliminate sudden and constant noise, enabling accurate and stable inspections. *For more details, please refer to the PDF document or feel free to contact us.*