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RedRock Tunneling Magnetoresistive (TMR) sensors are a great alternative to Hall Effect Sensors. Understand the benefits of TMR sensors over Hall Effect Sensors, including availability, cost effectiveness, and same fit/form packaging for drop-in replacement. With recent supply chain shortages of Hall Sensors, more design engineers are turning to TMR technology to replace Hall in active designs. Watch now to see why and how this can be done with minimal difficulty, including a live demonstration showing activation of Hall vs. TMR.
A variety of low-power digital and analog (linear) sensors are demonstrated for performance and sensitivity. Using the RR1EK3-0003 RedRock® TMR Magnetic Switch/Sensor DemoBoard, a Coto App Engineer delivers an informative demo of the low-power RedRock® TMR magnetic sensors in language you can understand.
Coto’s resident App Support Engineer explains how low-power RedRock® Bipolar TMR magnetic sensors work, their primary benefits and the applications for which they are best suited.
Coto’s resident App Support Engineer explains how low-power RedRock® Omnipolar TMR magnetic sensors work, their primary benefits and the applications for which they are best suited.
Security applications use magnetic sensing in their devices to detect the unauthorized opening of a door or window. The main mechanism typically consists of a digital magnetic sensor and a magnet that are close to each other when the door/window is closed. In the event of an intrusion, the magnet moves away from the sensor, an action which is designed to trigger an alarm. While the application is fairly simple, the requirements of the sensor are significant. Featuring RedRock® TMR magnetic sensors’ extremely low power consumption, high sensitivity, ultra-miniature size and high degree of robustness and reliability, this brief video demonstrates TMR to be the ideal solution when used in security devices.
To conserve battery power, many devices are kept “asleep” or turned off until the time is right for them to operate. When the device is removed from its enclosure, a sensor is used to trigger its “wake-up.” In this brief video, this function is explained and demonstrated using a RedRock® TMR magnetic sensor within a medical pill camera device which requires the sensor to be tiny, highly sensitive and able to operate within a hermetically-sealed environment while using nearly zero power.
RedRock® TMR magnetic sensors can be used in a wide variety of proximity applications such as detecting the opening/closure of an automatic sliding gate or detecting position of a linear actuator or a conveyor belt. This brief video demonstrates an example using feedback from a TMR sensor to stop a moving motor. Requirements met by the TMR sensors are high reliability, extremely low current drain (which is important if the device is battery powered) and a high level of sensitivity.
Coto Technology is now offering its RedRock TMR magnetic sensor in a tiny LGA-4 package (sized at 1.4x1.4x0.45mm) with smaller options also available on request.
Coto Technology featured RedRock TMR magnet sensors at Sensors Expo 2017.
A Liquid Level Sensing application is featured using a level sensing demo which compares the typical use of older technology (reed switches) with the smaller, more efficient, precise, cost-effective TMR magnetic sensor technology.
A demonstration of TMR is featured, using an evaluation demo board and Coto’s RedRock TMR magnetic sensors.
This brief introductory video offers design tips for electronic engineers designing with reed switches. Dr. Stephen Day, Ph.D. offers a brief overview on reed switches with a detailed explanation as to how they react to magnetic fields. Also covered is how to select a magnet for your particular application.