A temperature sensor is a device, typically, a
thermocouple or RTD, that provides for
temperature measurement through an electrical
signal. A thermocouple (T/C) is made from two
dissimilar metals that generate electrical voltage
in direct proportion to changes in temperature. An
RTD (Resistance Temperature Detector) is a
variable resistor that will change its electrical
resistance in direct proportion to changes in
temperature in a precise, repeatable and nearly
Water tank overflow is a common problem which leads to the wastage of water. Though there are many solutions to it like ball valves which automatically stop the water flow once the tank gets full. But being an electronics enthusiastic wouldn’t you like an electronic solution for it? So here is a simple and handy DIY that will guide you to make a circuit which will detect the water level and will raise an alarm upon getting the water tank full or a preset level.
Pressure indicators generally utilize an internal pressure sensor. Though many type of sensors can be used, force collector type sensors are the most common. These electronic sensors employ a force collector such as a diaphragm or piston to measure the strain caused by force applied over an area. Simply put, pressure applies force to a diaphragm or piston which causes the piston or diaphragm to move in relation to the amount of pressure. Sensors detect that movement (the strain) and convert to a unit of pressure.
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A motion sensor is a device that notices moving objects, mainly people. A motion sensor is frequently incorporated as a component of a system that routinely performs a task or else alert a user of motion in a region. These sensors form a very important component of security, home control, energy efficiency, automated lighting control, and other helpful systems. The main principle of motion sensor is to sense a burglar and send an alert to your control panel, which gives an alert to your monitoring center. Motion sensors react to different situations like movement in your living room, doors, windows being unbolt