Magnetic sensors are the sensors that convert the change/ magnitude of a magnetic field into an electrical signal. The Earth's magnetic field or the magnetic field referred to as magnetism, is a well-known but invisible phenomenon. Magnetic sensors convert invisible magnetic fields into electrical signals and help to have visible effects. They were designed decades ago as a sensor using the electromagnetic induction effect and has expanded into applications in the magneto-resistance effect, … [Read more...]

Generally, automobiles (especially 2-wheeler and 4-wheeler vehicles) and security monitoring systems are equipped with multiple sensors that constantly monitor their operation and condition. Some sensors measure air, oxygen, and temperature, while others, such as knock sensors, measure vibration and noise levels in the vehicle's engine and security monitor systems. Knock sensors, on the other hand, have a much wider range of applications and are also known as piezoelectric sensors Or vibration … [Read more...]

In automobiles, engine knocking is a sound or detonation or engine ping that occurred due to high-frequency vibrations caused by poor quality fuel, wrong spark plug, irregular ignition /explosion occurring in the cylinder, and deposits on the cylinder wall. These engine knocks can cause power wastage of the engine and destroy the engine. These days, modern vehicles are equipped with various sensors to monitor their functioning like measuring the air, temperature, etc. In addition to these, the … [Read more...]

Ultrasonic sensors are in available for the past many decades and these devices continue to hold huge space in the sensing market because of their specifications, affordability, and flexibility. As the automation industry has been progressing, the employment of ultrasonic sensors in multiple domains such as drones, EV vehicles is emerging. In the year 1914, Fessenden developed the first modern transducer employed in sonar where it can be able to find the items in water but not the direction of … [Read more...]

The humidity sensor is also known as a hygrometer, that is used to measure humidity present in the air. Generally, both the humidity sensor & temperature sensor are used to detect humidity. Humidity is defined as the amount of moisture or water content present in the air. This water is present in gaseous form in the air. A less humid air indicates that the air is dry, which generally happens for dry areas. And high humidity means a lot of water is present in the air, which is the general … [Read more...]

The accelerometer is known for measuring the rate of change of speed. So, measuring acceleration has been always one of the challenging aspects in the area of electronics and instrumentation. With the advent of microelectronics and microcontrollers, measuring the rate of change of speed has found new dimensions, blended with old fundamental principles. An accelerometer is widely used to measure the rate of change of speed in three-dimensional space.  These devices essentially work on … [Read more...]

In everyone’s life, water is a basic need but conserving water as well as its proper maintenance is very important. So here is a rain sensor to detect the rain in the agriculture field & generates an alarm whenever there is rain so that we can take some proper actions to conserve the water as well as crops. Consequently, we can enhance the underground water levels through a recharge technique used underwater. This sensor detects the rain and gives an alert to concerned persons in … [Read more...]

Knowing the heart rate data is very helpful while doing exercises, actively studying, etc. But measuring heart rate is a difficult problem. So, a pulse sensor is used to overcome this problem. This sensor is a plug & play heart-rate sensor, utilized by artists, students, athletes, mobile & game developers, makers who desire to know the existing heart-rate data to use in their live projects. This sensor merges a simple optical heart rate sensor through a circuit. This circuit is used … [Read more...]

IR technology is used in a wide range of wireless applications which includes remote controls and sensing. The infrared part in the electromagnetic spectrum can be separated into three main regions: near IR, mid-IR & far IR. The wavelengths of these three regions vary based on the application. For the near IR region, the wavelength ranges from 700 nm- 1400 nm, the wavelength of the mid-IR region ranges from 1400 nm - 3000 nm & finally for the far IR region, the wavelength ranges from … [Read more...]

In our day-to-day life, we all utilize different types of sensors. From that, the temperature sensor is one kind of sensor that is used most frequently in different forms like microwaves, water heaters, refrigerators, thermometers, etc. Generally, these types of sensors are used in a wide range of applications to measure the amount of coolness or hotness of the device and change it into a readable unit. Do you know how the temperature of the buildings, dams, boreholes, soil are measured:? … [Read more...]