ASM6664E

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The ASM6664E is a member of a class of rotary motion sensors called rotary potentiometers, rheostats, or variable resistance devices. Its purpose is to detect and report the position of a rotating shaft in the form of an electrical signal. This is achieved by using two contact elements, one fixed and one moveable, which can vary the resistance of the device depending on the relative angle between them. The ASM6664E is especially well suited for applications that require an accurate measure of the rotational angle of a motor or actuator.

The ASM6664E is a 3-terminal device with a total resistance range of 5KΩ to 50KΩ when used with a 5V power supply. It has two independent variable resistors, a fixed resistor, and a sense element with two moveable contacts. The total resistance is set by the application circuit and depends on the total supply voltage and the relative angle between the two moveable contacts. The total resistance is measured between the two opposing moveable contacts.

The working principle of the ASM6664E is based on the concept of linear variable displacement transducers or LVDTs. This type of transducer utilizes two moveable contacts, each housed in its own linear and conical shape cavity, to vary the resistance of a device based on the angle between them. The ASM6664E utilizes two such LVDTs to obtain its output.

The total resistance of the ASM6664E varies as the relative angle between the two moveable contacts changes. This can be seen by considering the overall circuit diagram. As the moveable contacts turn, the resistance between the two terminals changes, causing the output voltage to vary. The amount of voltage will depend on how much resistance is present in the overall circuit. This variation is used to determine the angular position of the moveable contacts.

The ASM6664E is commonly used in applications such as speed control, servo motor control, position sensing, and joystick control. The device is highly robust and can withstand a wide range of environmental conditions. Additionally, due to its built-in self-calibration feature and its accuracy of up to 0.2 degrees, the device can be used in a variety of sensitive applications.

In summary, the ASM6664E is a versatile device that can be used to accurately measure the angular position of a rotating shaft. It operates by varying the resistance between two opposing moveable contacts based on the relative angle between them. This enables it to be used in a variety of sensitive applications where accurate readings are required.

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