Blogs

Application Note Abstract   This application note considers the possibility of using springs as sensors. A comparison with solid conductive sensors and recommendations for the practical usage of springs are also discussed.   Introduction   CapSense™ may be used in several applications. However, some applications cannot install printed circuit boards with a set of sensors directly under the overlay or attached to the device case. Examples of such applications are “white goods” (that is, cooktop, washing machines, refrigerators, microwave ovens, and others) and various vehicle electronics, such as radio sets, TV tuners, dash boards, seat occupant detection, and so on.   Metallic spring sensors may be used as an alternative to solid conductive sensors. Th...

Capacitive touch buttons are widely used in modern electronic products due to their long lifespan, sealed structure, and flexible design possibilities. From consumer electronics to industrial control systems, capacitive touch technology has gradually replaced traditional mechanical buttons in many applications.   With over 25 years of manufacturing expertise since 2000, we have witnessed the evolution of touch technology from simple tactile switches to the highly sensitive capacitive systems used today. This article integrates our front-line production data and R&D insights to provide a comprehensive engineering perspective. The content is based on practical design experience and real-world applications, making it especially useful for engineers, product developers, and B2B buyers...

Selecting the ideal touch technology is no longer just about clicking a button; it’s about environmental survival and user experience. Whether you are designing a sleek consumer tablet or a rugged industrial kiosk, the underlying physics of the screen determines its success. While Capacitive Touch dominates the modern market, alternative technologies like Resistive, Infrared (IR), and SAW offer unique advantages in specific niches.   Understanding the Big Four   To make an informed decision, engineers must look beyond the surface. Each technology relies on a different physical principle—from detecting pressure to monitoring the interruption of light grids or ultrasonic waves.   Below is a detailed comparison of the four primary technologies. Feature 01. Capac...

Why do some insulating materials excel in energy storage while others fail at high frequencies? The answer lies in the Dielectric Constant, a fundamental property that dictates how a material stores and dissipates electrical energy. Far from being a simple static number, $\epsilon_r$ is the pivot point where material science meets electrical performance. Whether you are designing microscopic transistors or high-voltage capacitors, understanding the nuances of relative permittivity is essential for achieving system efficiency. This guide strips away the complexity to explain why this parameter is the backbone of modern electronic design.     Introduction: What is Dielectric Constant?   The Dielectric Constant (εᵣ), also known as relative permittivity, ...

In the sophisticated world of HMI design, the dielectric constant (εᵣ) is far more than just a physical property; it is the heartbeat of capacitive touch sensitivity. Understanding how different materials—from standard soda-lime glass to advanced optical adhesives—influence electric field coupling is essential for engineers aiming to balance sleek aesthetics with industrial-grade reliability. As a professional manufacturer, Goodkey Machinery Company provides this technical deep-dive to help you optimize your touch panel stack-up for maximum signal integrity.   The Central Role of Dielectric Constant in Capacitive Touch   In a capacitive touch panel, your finger (a conductive object) changes the local capacitance of a sensor pattern (usually ITO elect...

In the modern landscape of HMI (Human-Machine Interface), capacitive touch springs have become the gold standard for reliable control. As a professional manufacturer, Goodkey Machinery Company provides one-stop solutions from drawing design to high-volume production.   Top 10 Strategic Advantages for B2B Buyers   1. Enhanced Aesthetics and Modern Design Provides a sleek, seamless interface without physical gaps or moving parts. Enables flexible and fashionable product design,such as curved surfaces or hidden buttons.   2. Improved Durability and Reliability Offers long-life and high reliability through non-mechanical operation. No mechanical parts means reducing wear and tear from repeated pressing. Features higher resistance to environmental factors like dust, moisture,...