Working of Pulse Input Speed Indicator

In summary, a pulse input speed indicator can be analog or digital and works by counting the number of pulses received per second. This information can then be used to determine the speed. Calibration can be done by comparing the reading with a reference speed and adjusting the pulse width or gating time accordingly.
  • #1
Etude
28
0
Hi!

Can anyone please tell me how a pulse input speed indicator works and how one can be calibrated? :smile:

Thanx a lot!
 
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  • #2
These can be analog or digital.

You need to know how many pulses are being received each second because this is related to the speed you need to know.

So, if these pulses are a constant width, then the average voltage because of them will depend on how many of them are received each second. So, you can just filter them to get a steady voltage and then apply the output to a meter.
The reading will depend on the number of pulses being received each second.
This is the analog method.

Digital is even easier. You just count the pulses for one second and the reading is the number of pulses per second. In this case, 1 second is called the "gating time".

Calibration depends on the actual application. If it was speed of a car, you could use a GPS as a reference speed and compare it with the actual reading being obtained.
You could then adjust the pulse width in the analog system or the gating time for the digital system until the readin was correct.
 
  • #3
Hey! Thanx a lot! Explained it nice and short - just what I was searching for. :smile:
 

Related to Working of Pulse Input Speed Indicator

1. What is a pulse input speed indicator and how does it work?

A pulse input speed indicator is a device used to measure the rotational speed of a rotating object, such as a motor or engine. It works by counting the number of pulses or signals generated by a sensor in a given time period, which is then converted into the speed of the rotating object.

2. How accurate is a pulse input speed indicator?

The accuracy of a pulse input speed indicator depends on several factors, including the resolution of the sensor, the sampling rate, and the quality of the internal electronics. Generally, a high-quality pulse input speed indicator can achieve an accuracy of 0.1% or better.

3. Can a pulse input speed indicator be used for different types of rotating objects?

Yes, a pulse input speed indicator can be used for various types of rotating objects, such as motors, engines, turbines, and gears. It can also be used for both high-speed and low-speed applications, as long as the sensor and electronics are suitable for the specific speed range.

4. How is the data from a pulse input speed indicator displayed?

The data from a pulse input speed indicator is typically displayed on a digital or analog display, which shows the current speed in revolutions per minute (RPM) or other units of measurement. Some models also have the ability to record and store data for later analysis.

5. What are the main advantages of using a pulse input speed indicator?

Some of the main advantages of using a pulse input speed indicator include its high accuracy, versatility for different types of rotating objects, and ability to measure both high and low speeds. It also provides real-time data, making it useful for monitoring and controlling processes in various industries.

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