What is Passometer?

Passometer is an electromechanical and portable instrument, which count the number of paces or velocity of the body movement. It automatically records the number of paces. Its mechanism is being operated by the movement of the body. It is similar to the speed meter of any mechanical transport. But the speed meter counts the speed per a unit distance. And Passometer counts the pace of the body which is a circular or periodic measurement.

What is Pedometer?

The pedometer is also an electromechanical and also a portable instrument, which count each step a person takes by detecting the motion of the person’s hands or hips. Mainly it counts the distance how much the user passes. Or how much distance he crossed by. It is adjusted according to the length of the pace of the person carrying it. It is important to use it vertically for better measurement.

Sizes and Shapes of Passometer & Pedometer

There are many kinds of Passometer and Pedometer are found. Earlier men used mechanical Passometer and Pedometer which system was analog. That instruments can’t measure the actual value. But nowadays we used digital Passometer and Pedometer. And there are some elliptic shape and circular shape. And some are square and rectangular. In the Unfoldment time, men used a big shape of the instruments. But now we use a tiny shaped meter. And now we can find Passometer and Pedometer as a mobile app. And it is easier to carry and calculate.

How Passometer & Pedometer Works

Pedometers work in a very simple but in an electronic way. By opening that we will find a metal pendulum (a hammer with a tiny weight) wired into an electronic counting circuit by a thin spring. The circuit is open and no current flows through it. Taking a step, the hammer swings across and touches a metal contact in the center, completing the circuit and allowing current to flow. The flow of current energizes the circuit and adds one to step count. Completing the step, the hammer swings back (by the spring) and the circuit is broken and resetting that ready for next step. Pedometer shows a count of steps on LCD display. In some Pedometers, the hammer-pendulum circuit works the opposite way, it’s normally closed and each step makes it open temporarily. More developed instrument (some of the really good ones) work only electronic way and they have no moving parts, to be longer-lasting, more suitable, and more accurate. It has no swinging pendulum-hammer and measure steps with two or three accelerometers. These are microchips arranged that detect minute changes in force as to move legs. Cellphone applications work with the phones which have the Accelerometer sensor built in it. While running, this application will monitor the change in accelerometer and based on it will conclude if the step is taken. It can provide the information about the angle at which someone holding the device, direction, speed at which it is moved and the gravity. The accelerometer provides the values whenever they are changed along with the time at which the event occurred. Application stores these values in the database and look for a pattern. And it is important to use Pedometer vertically for accurate measurement.

How to Calculate

Passometer calculates the pace of the body directly, which is showed in an LCD display. But to calculate the distance by Pedometer have to follow this rule “Distance = Number of steps × Step length”. But in developed Pedometers, the distance is also shown directly in details. Best Pedometers are accurate to within ± 5% error.

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