The Hall-effect Sensor is able to distinguish between the positive and negative charge moving in opposite direction. The magnetic field detected by the hall-effect sensor is converted to the suitable analog or digital signal that can be read by the electronic system, usually a motor control system.5 feb 2020
What are some applications for the Hall effect sensor?
Examples. Some of the examples for the application of Hall Effect sensors are the current transformers, Position sensing, Galaxy S4 Accessories, Keyboard switch, computers, Proximity sensing, speed detection, current sensing applications, tachometers, anti-lock braking systems, magnetometers, DC motors, disk drives etc ...
What is the principle of Hall effect?
Principle of Hall Effect. The principle of Hall Effect states that when a current-carrying conductor or a semiconductor is introduced to a perpendicular magnetic field, a voltage can be measured at the right angle to the current path. This effect of obtaining a measurable voltage is known as the Hall Effect.
Can a Hall effect sensor detect current?
Using both a digital or linear Hall effect sensor to measure current is an effective approach, as these devices are based on the principle that for a given current flow, a proportional magnetic field is produced.
What is Hall effect used for?
The Hall effect can be used also to measure the density of current carriers, their freedom of movement, or mobility, as well as to detect the presence of a current on a magnetic field.
Is Hall effect sensor a range sensor?
This is a hall sensor proximity sensor that can detect magnetic targets approaching the sensor, without physical contact with the target. This sensor also can be used to detect the distance range 0-4cm (0-40mm).
How accurate are Hall effect sensors?
Regarding accuracy, currently available Hall effect sensors can achieve output error as low as 1%. A well-designed resistive current-sense circuit could surpass this, but 1% would generally be adequate in the high-current/high-voltage applications for which Hall effect devices are particularly suitable.
What frequency does a Hall effect speed sensor produce?
The Hall Effect sensor can sense each change in target movement, regardless of speed, from zero to 15 kHz frequency range, generating a steady pulse train of frequency proportional to target speed.
What are the types of magnetic sensors?
So far, different types of magnetic sensors such as Hall sensors, semiconducting magnetoresistors, ferromagnetic magnetoresistors, fluxgate sensors, superconducting quantum interference device (SQUID), resonant sensors, induction magnetometer, linear variable differential transformer, inductosyn, synchros and resolvers ...
What are the two types of magnetic detectors?
- 1). Low Field Sensors. These sensors are used to detect extremely low values of the magnetic fields like 1uG (1 Gauss is equal to 10-4 Tesla. ...
- 2). Earth Field Sensors. The range of magnetic for this type of sensor ranges from 1uG to 10 G. ...
- 3). Bias Magnet Field Sensors.
What are magnetic sensors called?
A MEMS magnetic field sensor is a small-scale microelectromechanical systems (MEMS) device for detecting and measuring magnetic fields (Magnetometer).