Radar object liquid level measuring device and radar object liquid level measurement method
A liquid level and radar technology, applied in the field of radar material liquid level measurement devices, can solve the problem that the accuracy is easily affected by the temperature of the measurement environment, the radar material liquid level measurement device is easily affected by the measurement environment, and is easily affected by the measurement environment. temperature effects, etc.
Active Publication Date: 2019-03-19
FINETEK CO LTD
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Problems solved by technology
[0002] At present, the disadvantage of the radar liquid level measurement device is that the radar liquid level measurement device is easily affected by the measurement environment; when the measurement environment changes drastically, such as when the temperature of the measurement environment changes drastically, the radar liquid level measurement device It cannot maintain high accuracy, the accuracy of the radar liquid level measurement device is easily affected by the temperature of the measurement environment, and the function of the radar liquid level measurement device is also easily affected by the temperature of the measurement environment, making the radar liquid level The function of the position measuring device becomes abnormal
This is because as the temperature changes, the difference between the two frequencies of the radar liquid level measuring device will also change continuously; therefore, the measurement will become inaccurate
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[0045] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:
[0046] Please refer to figure 1 , which is a block diagram of a part of the radar liquid level measuring device of the present invention. A radar liquid level measurement device 10 includes a first oscillating module 102, a second oscillating module 104, a frequency comparison unit 106, and a control module 107; the control module 107 includes a control unit 108 and a frequency fine-tuning unit 10810 . The control unit 108 includes a counter 10804 , a frequency-to-time-domain converter 10806 and an output regulator 10808 . The frequency trimming unit 10810 includes a voltage converter 10812 , an impedance isolator 10814 and a frequency controller 10816 .
[0047] The frequency comparing unit 106 is electrically connected to the first oscillating module 102 and the second oscillating module 104 ; the control unit 108 is elec...
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The invention provides a radar material liquid level measurement device and method. The radar material liquid level measurement device comprises a first oscillation module, a second oscillation module, a frequency comparison unit and a control module; the first oscillation module has first oscillation frequency and generates a first pulse signal; the second oscillation module has second oscillation frequency and generates a second pulse signal; the frequency comparison unit converts the first pulse signal and the second pulse signal into a conditioning signal; the control module compares the conditioning signal with an expected value to obtain a comparative signal; the control module adjusts the second oscillation frequency according to the comparative signal, so that a fixed frequency difference exists between the second oscillation frequency and the first oscillation frequency. The invention further discloses a corresponding radar material liquid level measurement method.
Description
technical field [0001] The invention relates to a measuring device and a measuring method, in particular to a radar object liquid level measuring device and a radar object liquid level measuring method. Background technique [0002] At present, the disadvantage of the radar liquid level measurement device is that the radar liquid level measurement device is easily affected by the measurement environment; when the measurement environment changes drastically, such as when the temperature of the measurement environment changes drastically, the radar liquid level measurement device It cannot maintain high accuracy, the accuracy of the radar liquid level measurement device is easily affected by the temperature of the measurement environment, and the function of the radar liquid level measurement device is also easily affected by the temperature of the measurement environment, making the radar liquid level The function of the position measuring device becomes abnormal. This is be...
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IPC IPC(8): G01F23/28
Inventor 林益助张良琪吴政辉郑兆凱侯宜良
Owner FINETEK CO LTD