The device calibrates the diesel engine speedometer

Testing equipment for diesel engine speed gauges, which is used to test diesel engine speedometer clock, to determine and evaluate the current accuracy of mechanical and mechanical speed gauges service of repair, maintenance and re-calibration after repair. This type of watch is widely used in the combination of mobile generators, main engines of ships .

Structure

(Photo: tchdkh.org.vn) The device is structured in the form of a single box, and coupled with a calibrated watch with mechanical coupling. To create a standard speed, in a device using DC motor, it is controlled according to the method of modulating pulse width by power semiconductor and digital control technique. As a result, the standard test equipment can provide high-precision measurement parameters, thereby determining the degree of error of the meter to be measured, which is displayed by 7-stripe LED, easy to read. In addition, the calibration device also creates a standard speed, supplied to the clock to be calibrated during operation.

The equipment has been manufactured, tested and applied at the Repair Center of the Bureau of Standards, Metrology and Quality, Ministry of Defense, and has been used on a number of Vietnamese vessels, carrying out registration procedures. license.

Some specifications:

- Supply voltage: 220 VAC

- Current consumption: 0.5A

- Motor output speed: 0 (3000 rpm)

- Display speed: 0 (6000 rpm

- Adjustment error: ± 1 rpm

- Display error: ± 2 rpm

For more information, please contact: Dr. Nguyen Van Thuan, Department of Electrical Engineering - Military Technical Academy, 100 Hoang Quoc Viet - Cau Giay - Hanoi. Phone: CQ: 069.515380