The keyboard itself will reportedly function, just not the biometric security.
The bad news for owners of older Macs is that the Touch ID functionality in the new keyboard won’t work with any Intel-based machines. Our three lines of thermal switches include the following.Īll switches are characterized by flexible mounting options, highly accurate and programmable set points, and hardened construction for extreme environments.įor more information on CPI thermal switches, please contact our engineering team today.You can only buy them with the M1 Mac (for now?) but you can use them (with Touch ID!) on other M1 Macs, or just as BT keyboards (no Touch ID) on Intel Macs/other devices. Thermal switches are used here to economically activate cooling systems. Oil Refining – Control of temperature in the oil refinery requires accurate and hardened thermal sensing for many fail-safe systems in the refining process.Īvionics Bay Over-Temp – In both commercial and military aircraft, ambient temperature in the avionics bay can reach well over 100 degrees C as components heat up, contributing to early system failure. Gas Shut-Off – In systems using pilot lights, a thermal switch will often sense the presence of the pilot and shut off gas flow if the pilot should go out for any reason. The cooling curve of a small steel sample can be analyzed and used to estimate the carbon content of molten steel.Įngine Cooling Fan Control – Thermal Switches are commonly used to locally control cooling fans which prevent engine overheat on everything from generators to jet engines. Disposable, immersible, type S thermocouples are regularly used in the electric arc furnace process to accurately measure the temperature of steel before tapping. Steel Manufacturing – Thermal Switches are used extensively in the steel and iron industries to monitor temperatures and chemistry throughout the steel making process. With flash points over 1000 degrees, these systems usually do not have a controller and so local switching to turn of gas supply or raise an alarm is appropriate.
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Galley Temperature Sensors – Prevention of galley fires is critical on both Navy Ships and around any high temperature professional cooking stations. sensors is to look at common applications for these switches. Perhaps one of the best ways to understand the applications that are better suited for thermal switches vs. And as always, CPI switches maintain their hardened design making them unique in the world for their electromechanical endurance, and their survivability. Today’s CPI thermal switches come in three basic types, covering a thermal range from 0 to 1750 degrees Celsius. The variety of types, and use of metal alloy’s has been informed by discovery, experimentation, and improvements in manufacturing processes. Still, traditional thermal switches have evolved too. For instance, in applications where smaller temperature differences need to be measured with high accuracy (like from 0-100C at 0.01%), technologies like thermistors, temperature sensors tied to external control systems, or simple resistance thermometers may be more suitable and cost effective.
Temperature switch technology has evolved over the last 75 years however, and depending on what you’re trying to do, alternate thermal switching technologies abound. The concept of a thermocouple had been around for over 100 years but CPI switches of that time stood out because they provided reliable operation over an extended temperature range, in an environmentally hardened package suitable for battlefield conditions. Thermocouple based switches with variable set-points and various temperature ranges of operation were made using the thermocouple materials of the day, mostly copper, aluminum, and chrome. When CPI started making thermal switches for the Military in the 40’s, there really wasn’t any other choice.
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