Simple oil consumption tester based on phase-sensitive demodulation processing
A technology of fuel consumption tester and phase-sensitive detection, which is applied in the direction of relative volume flow measurement, instruments, measuring devices, etc., can solve the problems of low work efficiency and easy to be affected by external interference signals, so as to improve applicability and avoid complexity and limitations, the effect of stable operating voltage
Inactive Publication Date: 2016-01-27
CHENGDU KERUIXIN TECH CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the defects of low working efficiency and easy to be affected by external interference signals in the existing fuel consumption tester, and provide a simple fuel consumption tester based on phase-sensitive detection processing
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[0017] Such as figure 1 As shown, the simple fuel consumption tester based on phase-sensitive detection processing of the present invention consists of a single-chip microcomputer, a phase-sensitive detection unit connected to the single-chip microcomputer, a stabilized power supply module, a display, a keyboard, a wireless transmission unit and a network interface, and a phase-sensitive It consists of a fuel consumption sensor connected to a detection unit.
[0018] Among them, the fuel consumption sensor is set in the engine fuel tank to collect the fuel consumption information of the engine and transmit it to the phase-sensitive detection unit. The DYP / DS1309 fuel consumption sensor produced by Shenzhen Dianyingpu Technology Co., Ltd. is preferred. This type of fuel consumption sensor It has a temperature compensation range of -40 to 80°C, can be used in various states of the engine, and has high sensitivity.
[0019] As the control center of the present invention, the sin...
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The invention discloses a simple oil consumption tester based on phase-sensitive demodulation processing. The tester is characterized by consisting of a single-chip microcomputer, a voltage stabilizing power supply module, a display, a keyboard, a wireless transmission unit, a phase-sensitive demodulation unit, a network interface and an oil consumption sensor, wherein the voltage stabilizing power supply module, the display, the keyboard, the wireless transmission unit, the phase-sensitive demodulation unit and the network interface are connected with the single-chip microcomputer, and the oil consumption sensor is connected with the phase-sensitive demodulation unit. According to the invention, the simple oil consumption tester is provided with the phase-sensitive demodulation unit which can determine oil consumption signals and accordingly inhibits other interference signals, such that influences exerted by interference signals on the tester are eliminated, and the detection precision of the tester is improved.
Description
technical field [0001] The invention relates to a fuel consumption tester, in particular to a simple fuel consumption tester based on phase-sensitive wave detection processing. Background technique [0002] The fuel consumption meter is an important testing instrument to measure the economic performance and dynamic performance of motor vehicles, and it is a necessary testing instrument for the automobile and tractor manufacturing industries, agricultural machinery supervision departments and scientific research departments. The currently used fuel consumption tester must be connected to a computer with a data cable to complete the transmission of test data and test curves. And the tester is frequently connected with the computer, which greatly affects the work efficiency of the tester. At the same time, the traditional fuel consumption tester is easily affected by external interference signals during work, resulting in low detection accuracy and unable to meet people's need...
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IPC IPC(8): G01F9/00
Inventor 陈仁学
Owner CHENGDU KERUIXIN TECH CO LTD