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How to Use a Dial Indicator with Magnetic Base

Views: 57     Author: Site Editor     Publish Time: 2022-07-04      Origin: Site

Dial indicators are small mechanical devices that can be used in a variety of ways to measure a mechanical component's deviation. There are pinions, levers, and gears that make up the Dial indicator's numerous components. As a result, it is safe to say that dial indicators are most commonly employed by operators to measure the deviation of a linear surface. In addition, this measurement equipment is used as a comparison in practice. This is why dial indicators are used to check whether the final product's deviation from a standard is within the desired tolerance range before it is shipped out to customers.

What is a magnetic base used for?

A magnetic base in a dial indicator is a type of attachment that uses magnets to attach to a surface. Magnetic bases are commonly used for holding tools, signs, and other objects in place. They are also used in some cases for supporting structures such as beams or trusses. Magnetic bases typically consist of two parts: a magnet and a metal plate. The magnet creates a strong magnetic field that attaches to the metal plate, which is then attached to the object or surface. Magnet can be permanent or temporary, and the strength of the magnetic field can vary depending on the type ofmagnet used. Permanent magnets are typically made of materials such as iron, steel, or neodymium, while temporary magnets are typically made from materials such as rubber or plastic. The strength of the magnetic field also depends on the distance between the magnet and the metal plate. For example, a permanent magnet with a large surface area will have a stronger magnetic field than a smaller permanent magnet. Conversely, a temporary magnet with a small surface area will have a weaker magnetic field than a larger temporary magnet. The size and type of magnet used will vary depending on the application.

How does a magnetic base work?

There are two types of magnetic bases: lever switches and push-button switches. The operation of the system remains the same regardless of how the magnet is turned on or off. The magnetic foundation consists of four parts: a non-ferrous metal spacer,two iron pieces, and the magnet. There are two types of magnetic bases: lever switches and pushbutton switches. There's no need to worry about whether or not the magnet's ON/OFF switch is working properly. One component non-ferrous metal spacer, two parts iron, and a third part magnet make up the magnetic base. A North and South poled permanent magnet resides in the center of the base. This example uses aluminum as a non-ferrous metal spacer between fall three. The magnetic base's ON/off switch is activated by rotating or pressing the magnet. When the magnet is rotated or pressed, the magnetic base is activated or deactivated. On and off switches are activated by magnet movement, which in turn magnetizes iron. Spacer with a magnetic pole facing the spacer made of aluminum and magnetized. The magnet is turned off when its poles are aligned with the aluminum spacer.

How to use a dial indicator with a magnetic base?

A dial indicator's precise operation necessitates a sturdy mounting and rock-solid stability. The accuracy of the measurement is jeopardized if the indicator shifts throughout the measuring process. Hence dial indicators are virtually always employed with an adjustable magnetic base that can be clamped firmly to a nearby surface. The dial indicator can be positioned such that the stem reads movement in the same direction as the portion being measured by adjusting the magnetic base. The indicator can read travel in either direction, depending on where you place it. Position the indication so that the stem is aligned with the component's motion axis, if possible. Then, set it so that the stem is centered over the component being measured, roughly halfway along its travel range. The most critical step now is to ensure that the indicator is zeroed before each measurement. Regardless of where the needle is pointing, simply rotate the outer dial to place the zero mark squarely opposite the needle. Measurement can be taken by moving the part in question once you have zeroed the indication either a rise or a fall in the value of the indicator will be shown.

Most of the measures you collect will be less than 0.050-inch except for lifter travel and total valve lift. Because of this, many builders only utilize a 0.250-inch or less indication. To learn how to use a dial indicator to measure the piston deck, see How to Use a Deck Bridge, A low-cost kit with various extensions for measuring difficult-to-reach components can also be purchased for uncommon applications. When it comes to taking precise measures, dial indicators are the go-to choice for many builders. Accuracy cannot be ensured in this manner. The more serious the builder; the more dial indicators they will own. Keep them clean and put them in a cabinet or a separate toolbox with other precision instruments for consistent and reliable results.

The working principle of a dial indicator?

When it comes to mechanical industrial measurement, a dial indicator is a critical comparator to have on hand. Working principle: The movement of the spindle and the reading of the main scale are multiplied by the needle's movement in Dial Indicators. Additional to this, the spinning of pinions and gears may be seen on the main scale as well. Gears and levers multiply the little upward pressure applied to the spindle at the contact point, resulting in a much larger force. A dial finger is used to denote this setting on the dial's face. Using a spiral or gear train to connect a contact point to the dial face, a hand on the dial face can show how much movement there is in the contact point. Dial depth gauges, diameter gauges, and dial indicator snap gauges are just a few of the many conventional measuring instruments that can make use of these dial depth gauges. It's equivalent to a millimeter of spindle movement. The instrument's movement mechanism is encased in a metal casing for safety's sake. There are 100 divisions on the large dial scale. When a part's fundamental size is determined by using slip gauges, a zero is established on the indicator.

Dos and don't when using a dial indicator with a magnetic base?

When using a dial indicator with a magnetic base, there are several things to keep in mind in order to ensure accurate readings. First, make sure that the surface you are attaching the base to is clean and flat. If there is any dirt or debris on the surface, it can interfere with the magnet's ability to hold the base in place. Additionally, avoid attaching the base to any surfaces that are subject to vibration, as this can also affect the accuracy of the readings. Once the base is in place, take care not to bump or knock it, as this can jarringly dislodge the indicator from its position. With these guidelines in mind, you can be sure to get reliable readings from your dial indicator.


When it comes to leveling and precision, a dial indicator is a perfect tool for the job. This type of device is simple in design but can provide accurate measurements that are crucial when it comes to getting the results you need. In this post, we're going to take a closer look at what a dial indicator is and how it works so you can see why it's such an important tool for any shop or garage. The most common use for a dial indicator is to measure runout on a shaft. We can also use it to measure backlash or the amount of play between gears. Dial indicators can be used in both manual and automatic machines. There are several factors that affect the accuracy of our measurements, including the type of machine we're using and the calibration of our dial indicator.


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