This section provides an overview for rotary position/angle sensors as well as their applications and principles. Also, please take a look at the list of 15 rotary position/angle sensor manufacturers and their company rankings. Here are the top-ranked rotary position/angle sensor companies as of April, 2023: 1.MAKERSAN, 2.YUTTAH.
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Angle sensors are sensors for detecting angles from the position of objects. Recently, there is an increasing need for high-precision position detection in precision processing, semiconductor manufacturing, automobiles, and robotics, and the need to measure precise angles for position detection is also increasing. Angle sensors are mainly available in the following types: optical, magnetic, inductive, and potentiometer. Each method should be selected for use according to the application.
Angle sensors are currently used in a variety of applications, including precision processing, semiconductor manufacturing, automobiles, and robotics.
There are four main methods of angle sensor principle:
Magnetic angle sensors convert changes in the magnetic field into electrical resistance and output the voltage as an analog output signal. Unlike potentiometer-type sensors, magnetic angle sensors may have two output systems. These two output values are generally different except for the neutral position. Having two output systems improves the detected value and the reliability of the angle sensor.
In addition, potentiometer-type angle centers always have a blind spot in the angle sensor due to their structure, so two angle sensors are required for 360° detection. However, a magnetic angle sensor can detect 360° with only one angle sensor, thus reducing the number of parts required.
Since magnetic angle sensors are non-contact, they have fewer failure factors and have a longer service life than potentiometer angle sensors and other contact-type sensors. However, in the unlikely event of a failure, care must be taken with the distance to the sensing element. If distance adjustment is not considered when reinstalling the sensor, premature failure of the angle sensor will occur if contact occurs. Also, if the distance from the detecting body is too far, the angle may not be detected correctly. When replacing a magnetic angle sensor, observe the operating distance published by the manufacturer.
Since there are two output methods, one is voltage and the other is current, care should be taken when selecting the output method. The output range of analog output differs depending on the angle sensor. For voltage, the range is not only 0 to 5 V, but also 0 to 10 V. Check the manufacturer's specifications carefully.
Angle sensors require a power circuit and a ground circuit for analog output. Therefore, the angle sensor has three terminals, which are the power terminal, ground terminal, and analog output terminal, respectively. If the analog output is abnormal, the angle sensor itself may be faulty, but the wiring may also be abnormal. If the power and ground circuits are not configured correctly, the analog output will also be abnormal. Even if the analog output is 5 V, the power circuit may require an input of 5 V or more, such as 12 V or 24 V.
*Including some distributors, etc.
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Ranking as of April 2023 in United States of AmericaDerivation Method
Ranking as of April 2023 GloballyDerivation Method
Derivation MethodThe ranking is calculated based on the click share within the rotary position/angle sensor page as of April 2023. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.
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