What is meant by linear detector?
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The principle is to use linear detection to detect first the modulation symbol on the antenna least affected by noise enhancement, then subtract the interference due to that symbol on the other symbols, then detect the next strongest signal, until all symbols are detected.
What are the three types of detectors?
When talking about radiation detection instruments, there are three types of detectors that are most commonly used, depending on the specific needs of the device. These are: Gas-Filled Detectors, Scintillators, and Solid State detectors.
What is a linear smoke detector?
The linear smoke detector smoke detector consists of a transmitter and a receiver and works according to the principle of light attenuation by smoke. The transmitter transmits to the reflector a highly focused infrared ray.
How does a linear heat detector work?
How it works. Linear Heat Detection (LHD) is a continuous heat detector designed to detect heat along the length of a sensor cable. This sensor cable is made up of two conductors, both insulated by heat sensitive polymers. The heat sensitive polymer is protected by an outer jacket.
What are the advantages of linear heat detection system?
Some benefits of a linear heat detector include: Easy installation and maintenance. Minimal false alarms. Provides hazard coverage at every point on the cable for maximum protection.
What is the use of linear transducer?
A Linear Transducer is a type of position sensor which is used to measure movement in a linear fashion. They do this by converting the linear displacement into electrical signals proportional to the displacement making it usable by machines.
Where do you use a linear heat detector?
Linear Heat Detection is well suited to a variety of applications, including:
- Cable Trays.
- Conveyor Belts.
- Floating and Fixed Roof Tanks.
- Tunnels.
- Car Parks.
- Escalators.
- Warehouse Racking.
- Thatched Roofs.
What are linear heat detectors?
What are Linear Heat Detectors? Linear Heat Detection (LHD) (also known as Linear Detection Wire or Linear Heat Detection Cable or Linear Heat) is a very commonly used method of fire detection. It can detect a fire anywhere along the length of the cable, and can be of lengths in excess of a kilometer.
What is a linear detector array?
Linear Detector Arrays (LDAs) are one-dimensional x-ray detectors that consist of a single row of x-ray sensitive detectors. In order to obtain a two-dimensional image from such a detector it is necessary to move the detector, or the object in a direction perpendicular to the length of the array.
How can I improve linear detection?
Linear detection can be improved by using the minimum mean square error (MMSE) criterion, which minimizes the total error due to the combination of noise and distortion. In this case, we use the detection transformation:
What is an XV-LDA linear detector?
SIS manufactures a range of XV-LDA linear detector arrays, with resolutions of 200, 400, 800 and 1600 microns for use from 20kV to 450kV. These detectors have been specifically developed for use in digital x-ray inspection.