OTVsensing

Is Your Encoder Accuracy Still There When Temperature Rises 10°C? Magnetic encoders are prized for dust immunity, oil resistance, and maintenance-free operation. But there’s a silent killer that’s often overlooked — temperature. The magnetic field strength of an encoder ring drifts with temperature. When a robot joint goes from cold start to full load, with […]

Is Your Encoder Accuracy Still There When Temperature Rises 10°C? Magnetic encoders are prized for dust immunity, oil resistance, and maintenance-free operation. But there’s a silent killer that’s often overlooked — temperature. The magnetic field strength of an encoder ring drifts with temperature. When a robot joint goes from cold start to full load, with

Maxwell: Translating God’s Language with Mathematics “Maxwell’s work is the most profound and the most fruitful that physics has experienced since the time of Newton.” — Albert Einstein If Newton translated the language of “force,” Maxwell translated the language of “fields.” Electricity and magnetism, light and waves, energy and spacetime — under his pen, they

The Most “Divinely Inspired” Equation in Mathematics— And You Use It Every Single Day OTV Precision Sensing | Technical Blog Take a look at this equation. Don’t worry — by the end of this article, you will understand exactly what it does and why it’s beautiful. FOURIER TRANSFORM F(ω) = ∫-∞∞ f(t) · e-iωt dt

Shipping a humanoid robot is not like shipping a laptop. Before a single unit leaves the factory, it must pass through a gauntlet of test stations — each designed to catch a specific class of failure before it reaches the customer. Drawing on a real production test specification for a full-scale humanoid robot, this article

The wide range of motion required by humanoid robots, from upper limbs and waist to lower limbs, drives the need for three main types of joint modules: planetary, harmonic, and linear. Modern joint modules adopt a highly integrated design, combining core components like reducers, motors, drivers, and encoders into a single unit. Leveraging all-hardware FPGA

I. Overview and Classification of Absolute EncodersAn absolute encoder is a sensor that directly outputs the shaft’s angular position information. Its core characteristics are position uniqueness and power-off memory function. Even if the shaft continues to rotate after a system power loss, the encoder can immediately feedback the current absolute position information upon power-up without requiring a homing

I. Standard Cored Motor The rotor of a standard DC motor is laminated from silicon steel sheets, and the windings are wound around an iron core. It has high inertia, high inductance, and a relatively slow response speed. 1. Requirements for Position Sensing: 2. Implementation Methods:Position sensing in standard motors typically uses physical sensors mounted directly on

BiSS and SPI are two common serial communication protocols used in industry, particularly in motor encoders and sensors. Although they may appear similar externally, there are key differences in their design goals, operating principles, and characteristics. In short: Below, we will compare them in detail across several parameters. General Comparison Characteristic BiSS Protocol SPI Protocol

As the core driving component of a robotic arm, the performance of a robotic joint directly determines the precision, reliability, and service life of the entire machine. This article details the full-process testing solution for robotic joint systems, from PCB-level testing to the aging tests of fully assembled units. It covers the verification of multiple