digital tachometer for boat

• 2022-08-04

RMP unit refers to the number of revolutions per minute, which is equivalent to r/min. The following *1000 indicates that the number pointed by the pointer needs to be multiplied by 1000, which is the correct reading. From the display, the speed at this time is 900 rpm. You need to judge whether this value is accurate according to the specific driving conditions of the boat at this time. The digial tachometer for boat is very accurate.

The electronic digital tachometer is composed of a digital speed sensor and an electronic counting circuit. The sensor converts the speed of the rotating shaft into an electric pulse signal , which is amplified and shaped by the circuit, and then sent to the electronic counter to display the corresponding measured speed value . Generally , the frequency method is used for medium and high rotating speeds , and the periodic method is used for low rotating speeds .

The commonly used speed sensors can be divided into photoelectric type, magnetoelectric type, capacitive type, Hall element type, eddy current type, etc. Their characteristics are that they are connected with the measured rotating shaft through a coupling or mark, and the angular displacement of the rotating shaft is transformed into an electric pulse signal in a non-contact way. Two sensors with a position difference of 90 ° are usually used to distinguish the rotation direction during measurement . According to the phase relationship, the rotation direction is judged by the circuit , and the addition and subtraction of the counter are controlled .

When you step on the accelerator, the higher the engine speed, the higher the digital area indicated by the number . Rotational speed is a physical quantity of the ratio of the number of revolutions of a rotating body to time. In engineering, it is usually expressed as rotational speed = number of revolutions / time . It is an important parameter to describe the rotational motion of an object .

Digital tachometer is convenient, accurate and easy to connect with the computer for control and parameter calculation. The measurement range turns from hundreds of thousands of times per minute to dozens of days, so it is widely used on boat . The boat's digital tape transfer meter receives pulse signals, and the pulse type can be selected through the internal dial switch of the instrument. You can come to our website to buy and sell.