(4) Frequency-Test Bench
AC inverter the 1980s only to the rapid development of the Electrical and Mechanical Control Technology. It is the application of microprocessor technology and electronic components consisting of high-power variable speed motor control system, its output by General Motors CV driveshafts direct output, smooth operation, the torque characteristics of the fuel pump, and so provide accurate debugging Speed, operating more convenient and function better. Thus domestic fuel pump test rig manufacturing enterprises or through the introduction of patent production technology, or develop their own design, quickly develop a variety of standard frequency-injection pump test, bringing domestic fuel pump test rig technically be larger improved.
In order to improve the function of the kind of test bed also generally increase to improve power supply, gas source, such as additional features flowmeter.

2 fuel pump Status Measurement System Test Bed

(1) speed, control instrumentation
Fuel pump test stand fuel pump speed measurement is the basic guarantee for debugging. At present, almost all types of products are supported figures show that the speed table, and the early speed Pointer table has been eliminated. Counting of oil also is the use of electronic counting device preferences counting, control of the oil pump debugging. In addition, the manufacturers of the product configuration also many other monitoring and control functions, such as automatic digital display oil temperature control and hydraulic, pneumatic (vacuum) digital surveying. In short, the fuel pump test required parameters can be measured by the number of significant instrument to test conditions, control accuracy has been greatly increased.