What are the sensors
Sensors in general work to detect any changes in the quantity, for example, "pressure or electrical quantity such as current or any other form of energy", and then follow the changes, the sensor sends signals to the explorer to the controller, this sensor outputs a signal that is readable, Through which the signals become in an optical or electrical form or any form of the signal so that they are in line with the change in the entry signal, in any measurement system.
sensor component
Scanner: It is responsible for directing the second component, which is the optical instruments of the electromagnetic radiation receiver. The detectors have a different range of data for each image produced by a detector, so the image is passed to the fifth component.
Analog-Digital Converter: The fifth component of the stereo, which calibrates this data and assigns a specific range to it, so that there is a normal value ranging from a specific minimum value to another specific size. Images consisting of numerical values are transmitted to receiving stations above the ground.
Optical instruments: It is a set of lenses that work to receive the emission from the earth, which was able to reach the school, and then separate the radiation into several compounds on the basis of length, where each vehicle consists of a specific range of wavelength.
Detectors: made of semi-qualified materials that are affected by electromagnetic radiation and then produce an electric current, and there are a number of detectors that correspond to the radioactive compounds resulting from the optical group, so that a specific detector corresponds to a specific vehicle and this detection is affected by the electromagnetic radiation of the library, and then an electric current is given equal to the intensity of electromagnetic radiation.
Electrons: They are the fourth component of the stereoscopic components and receive the electric current entering it from each detector separately and arrange the readings recorded by the detector in a corresponding arrangement to collect data from the ground and then build an image of the earth in its wavelength region.
The role and importance of sensors
The sensors are the element that starts with the mass diagram in the measurement systems, which is in direct contact with the variables in order to find useful outputs. The sensors are
divided into three types of devices:
Sensors classified as active: they are the type that produce a clear signal emitted by an external excitation source, the physical properties of the device depend on the extent and quality of the external influence affecting it, so it is also called self-generating sensors.
Passive sensors: They are a type of sensor that works to emit a signal without the help of external sources of excitation, and it does not need any stimulus or additional voltage.
Analog sensors: There are many types of sensors with digital and analog ratings available
Sensor types
electrical sensors: This sensor is used to sense the current and emits signals at the inputs of devices by means of control or via visual screens, in most cases the electrical sensors are based on knowing the effect of the hall, but other important methods are used.
The basic specifications include sensor type, sensor function, small and large measurement ranges, and operating temperature range. Electrical sensors are used when data on the state of the electrical system is needed and are used for everything from rail systems to fan, pump and heater.
Proximity sensor:
These sensors are the closest to electronic devices and are also used to detect the presence or absence of nearby objects by means of non-contact, the proximity sensor can detect the presence of objects within an area of several millimeters, so it emits a permanent current output signal to a control unit.
Proximity sensors are used In countless industrial processes to know the presence of machined components, basic specifications include sensor type, maximum sensing distance, minimum and maximum operating temperatures, and this, along with dimensions of diameter and length, proximity sensor devices are a general picture of short-lived devices but also found in designs that are available Its detecting objects that are within several inches, one type of proximity sensor known to use is known as the capacitive proximity sensor
radiation sensors:
They are sensors devices that work to detect radiation and are considered electronic devices that have a sensor that works by providing particles of alpha, beta or gamma and produces signals for meters and display devices. Samples promised.
pressure sensors:
Pressure sensors are also known as pressure sensors, or they may be called detectors, or even transducers It may be considered as one of the electromechanical devices that works to clarify and detect forces per unit area within gases or liquids, and it issues accurate signals to the inputs of the control and display devices. Usually, the pressure sensor uses or transforms energy as a barrier that blocks and bridges the pressure gauge to know and measure the force used against the location of the unit.
Contains the previously mentioned basic specifications of the important sensor function , small or large working pressures, and overall accuracy as well, besides many features that exist in the device, the pressure sensor is used when data about the pressure of a gas or liquid is needed for control or measurement.
position sensors:
Position sensors are called position sensors, or they may be called detectors or transducers. They are also electronic devices that are used to sense the locations of valves, doors, throttle and others. It also works to extend the place with signals to be connected to control devices or display devices, and it contains basic specifications for this type of sensor. The function of the sensor and the measurement field as well, and the features that are specific to the type of sensor Positional information is required in a myriad of direct control applications.
Common position transducer: This is what is called a chord pot, or a string potentiometer.
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