The developed OPPA vibration distribution meter uses the lattice projection method and enables frequency analysis at all pixel points (260,000 points) of a high-speed camera.
Conventional vibration measurement primarily relies on point sensors, making it challenging to determine the distribution of vibrations, often requiring the movement of sensors for repeated experiments or scans. 【Solving the following issues related to vibrations】 ■ The equipment or devices in use are vibrating, and it's unclear how to address this. ■ It's unclear how the vibrations causing disturbances to neighbors are being transmitted. ■ The vibration phenomenon has changed due to the attachment of an accelerometer to the vibrating object. I want to measure it non-contact. ■ I am using accelerometers and laser displacement sensors for vibration measurement, but can only measure at one point. ■ I am investigating distributions using laser Doppler vibrometers, but synchronization at each point for scanning is not achieved, preventing the measurement of transient phenomena. ■ I am conducting repeated experiments to obtain distributions, but there is a lack of reproducibility and reliability. ■ Vibration measurement requires a significant amount of labor. I want to measure vibration distributions easily, inexpensively, and in a short time. ■ The analysis results of vibrations are difficult to understand and need to be visualized. *For more details, please download the PDF or feel free to contact us.
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【Exhibition and Seminar Information】 ◆Exhibition Name: TECH Biz EXPO 2022 ◆Date: February 9 (Wednesday) to February 10 (Thursday), 2022, 10:00 AM to 5:00 PM (until 4:00 PM on the 10th) ◆Venue: Nagoya City Small and Medium Enterprise Promotion Hall, Fukiage Hall ◆Booth Number: T39 ◆Seminar: High-Speed / High-Precision Measurement of Shape / Deformation / Vibration Distribution ◆Date: February 9 (Wednesday), 2022, 3:30 PM to 4:10 PM ◆Venue: Nagoya City Small and Medium Enterprise Promotion Hall, Fukiage Hall *For more details, please download the PDF or feel free to contact us.
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Applications/Examples of results
【Examples of Measurement Applications Using OPPA Vibration Distribution Meter】 (1) Vibration control through amplitude measurement of vibrating objects: Measurement of vibration distribution in automobile bodies, engines, doors, etc. (Measurement of vibration modes) (2) Detection of defects in infrastructure structures such as bridges: During vehicle passage or hammering tests, the vibration modes differ depending on the location and severity of the defects. (Detection by capturing long-term changes in vibration modes. Measurement of transient phenomena that cannot be measured repeatedly) (3) Optimal design for vibration control of machinery and home appliance enclosures: After turning on the machine, the rotational speed increases and enters a steady state after exceeding several resonance frequencies. Changes in resonance frequency occur depending on the position and amount of load, capturing the overall movement of the machine to minimize vibrations. (Short-term changes in vibration modes) (4) Vibration control measures by changing the fixed positions of enclosures or structures. (Nodes and antinodes of vibration modes) (5) Prevention of vibration propagation from vibrating equipment: Confirmation of the direction and attenuation of vibration propagation to neighboring areas. (Detection of vibration transmission paths) (6) Monitoring the risks of buildings under demolition: Detection of sudden changes in deflection amplitude distribution during demolition. (Temporal changes in vibration amplitude distribution) *For more details, please download the PDF or feel free to contact us.
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4D Sensor Co., Ltd. researches, develops, manufactures, and sells high-speed and high-precision shape and deformation measurement devices. Additionally, we have commercialized the OPPA method developed in-house and are advancing the development of world-class high-speed and high-precision measurement devices. Please feel free to contact us if you have any inquiries.
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