Horiba. has filed a patent for a brake dust measurement device that ensures accurate measurement even with fluctuating main flow rates. The device includes a main flow path, a sampling flow path, and a flow rate control mechanism to maintain proportional flow rates. GlobalData’s report on Horiba gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Horiba, Optoelectronic biosensors was a key innovation area identified from patents. Horiba's grant share as of January 2024 was 32%. Grant share is based on the ratio of number of grants to total number of patents.

Brake dust measurement device for fluctuating main flow rates

Source: United States Patent and Trademark Office (USPTO). Credit: Horiba Ltd

The patent application (Publication Number: US20240035934A1) describes a brake dust measurement device designed to measure brake dust generated from a brake. The device includes a main flow path for the sample gas containing brake dust, a sampling flow path connected to a sampling point in the main flow path, and a flow rate control mechanism that adjusts the sampling flow rate to coincide with a flow rate proportional to the main flow rate. The main flow rate can be set based on factors such as temperature or pressure of the housing space where the brake is located.

Additionally, the device features a flow velocity calculator to determine the gas flow velocity against the brake, a main flow meter to measure the main flow rate, and a brake dust amount calculator to calculate the brake dust amount in a single test or per predetermined distance. The flow rate control mechanism can also be adjusted based on vehicle speed data. Furthermore, the patent application includes a method for measuring brake dust and a computer-readable medium with program instructions for controlling the sampling flow rate in the device. Overall, the brake dust measurement device and method outlined in the patent aim to provide accurate and efficient measurement of brake dust for various applications.

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