CN2470822Y - Microwave quick-acting water-content measuring device - Google Patents
Microwave quick-acting water-content measuring device Download PDFInfo
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- CN2470822Y CN2470822Y CN 00261778 CN00261778U CN2470822Y CN 2470822 Y CN2470822 Y CN 2470822Y CN 00261778 CN00261778 CN 00261778 CN 00261778 U CN00261778 U CN 00261778U CN 2470822 Y CN2470822 Y CN 2470822Y
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Abstract
The utility model relates to a micro-wave fast water content measuring device, which comprises a testing passage, a micro-wave sensor, a temperature sensor, a signal amplifying unit, a module converting unit, a central processing unit and a display unit; wherein the testing passage is arranged to a pressure sensor while the pressure sensor is arranged to the machine body. A capacity value is worked out according to a weight signal of the material and the volume constant V of the testing passage; modification and compensation of a water value is realized based on the resulted capacity value and a temperature value; and the result of actual water content of the material is displayed on the displaying unit in the end. The utility model has the advantages of avoidance of a Gamma radial density meter that avoids harms caused by radiation, safety and low cost.
Description
The utility model relates to the measurement of object institute water content.
It is fast that the moisture measurement device has measuring speed fast, shows characteristics such as measurement result at any time, is widely used in grain, every profession and trades such as chemical industry.By employed survey sensor difference, the moisture measurement device can be divided into capacitor type and microwave-type fast.Capacitor type moisture measurement device is because it can't surface measurements contains the material of free moisture content, so mostly adopt microwave-type at present.
The quick moisture measurement device of currently used microwave-type is made up of sense channel 1, microwave remote sensor 2, temperature sensor 3, gamma-radiation densitometer 4, signal amplification unit 5, A/D converting unit 6, central processing unit 7, display unit 8, operating unit 9 and power supply 10, and its structure as shown in Figure 1.
The principle of work of microwave remote sensor is: after the microwave transmissive member energising, send the microwave of certain frequency, after the receiving end detection, become voltage signal output, when the material of water content passes through, absorb microwave energy, detecting circuit output is changed, utilize this specific character, but the moisture content of continuous detecting material.
Microwave remote sensor is measured the original moisture content signal of material during the work of microwave moisture measurement device, changes because microwave signal changes with temperature of charge, needs to measure material temperature by temperature sensor 3 and compensates.Simultaneously, because the microwave remote sensor measurement is the moisture content signal of material in the certain volume, can't discern the unit weight of material, so measure the unit weight signal by the gamma-radiation densitometer.Moisture content, temperature, three kinds of signals of unit weight amplify and convert to the analog signals of standard through signal amplification unit 5, be transformed into digital quantity signal input central processing unit (CPU) 7 through modulus (A/D) converting unit 6 again, compensate, revise calculation process, draw actual moisture content value, on the unit of display 8, show.
The shortcoming of said apparatus is: the utilization of gamma-radiation densitometer be radioactive isotope, in case leak, the radiation meeting of its generation works the mischief to operation, installation personnel, and its price is also relatively more expensive.
The purpose of this utility model provides the quick moisture measurement device of a kind of microwave-type inexpensive, that do not have radiological hazard.
For realizing that the purpose of this utility model proposes following technical scheme:
The quick moisture measurement device of a kind of microwave as shown in Figure 2, it mainly comprises sense channel 1 ', microwave remote sensor 2 ', temperature sensor 3 ', signal amplification unit 5 ', modulus (A/D) converting unit 6 ', central processing unit 7 ', display unit 8 ', operating unit 9 ' and power supply 10 ', sense channel 1 ' is fixed on the pressure transducer 11, pressure transducer 11 is fixed on the body 12, the material moisture content signal that weight of material signal of being measured by pressure transducer 11 during work and microwave remote sensor 2 ' are measured, the temperature of charge signal input signal amplifying unit 5 ' that temperature sensor 3 ' is measured amplifies and converts to the analog signals of standard, be transformed into digital quantity signal input central processing unit (CPU) 7 ' through modulus (A/D) converting unit 6 ' again, CPU draws value of bulk density according to the weight signal of material and the volume constant V computing of sense channel 1 ', according to the value of bulk density that draws and temperature value the moisture content value is realized revising and compensation, at last the actual water content of material is as a result gone up demonstration at display unit 8 '.All devices are by power supply 10 ' power supply.
Also can increase a unit weight display window at display unit 8 ' directly shows the unit weight that the CPU computing draws.Perhaps water content is shown that switch to unit weight shows temporarily.
On operating unit 9 ', unit weight input media 13 can be arranged, under the known situation of material unit weight, then need not pressure transducer 11, can be directly by unit weight input media 13 input value of bulk density, the unit weight input media can be the input digit amount, by input end 14 inputs of central processing unit (CPU) 7 ', also can be input analog amount, by input end 15 inputs of A/D converting unit 6 '.
The quick moisture measurement device of microwave of the present utility model can existing pressure transducer 11, when measuring material moisture content, measure the unit weight of material simultaneously, unit weight input media 13 is arranged again, under the known situation of material unit weight, but closing presure sensor 11, directly, draw the amount of material institute water content accurately by unit weight input media 13 input value of bulk density.
The quick moisture measurement device of microwave of the present utility model owing to do not need the gamma-radiation densitometer, has therefore avoided radioactive radiation to the harm of human body and cost is reduced significantly.This device is easy and simple to handle, practicality.
Description of drawings:
Fig. 1 is the structural representation of the quick moisture measurement device of the microwave of prior art, and wherein 1 is sense channel; 2 is microwave remote sensor; 3 is temperature sensor; 4 is the gamma-radiation densitometer; 5 is signal amplification unit; 6 is modulus (A/D) converting unit; 7 is central processing unit (CPU); 8 is display unit; 9 is operating unit; 10 is power supply.
Fig. 2 is the structural representation of an embodiment of the quick moisture measurement device of microwave of the present utility model, and wherein 1 ' is sense channel; 2 ' is microwave remote sensor; 3 ' is temperature sensor; 5 ' is signal amplification unit; 6 ' is modulus (A/D) converting unit; 7 ' is central processing unit (CPU); 8 ' is display unit; 9 ' is operating unit; 10 ' is power supply, and 11 is pressure transducer; 12 is body; 13 is the unit weight input media; 14 is the input end of CPU; 15 is A/D converting unit input end.
The utility model is described by the following examples.
The quick moisture measurement device of 1 one kinds of microwaves of embodiment, as shown in Figure 2, it has sense channel 1 ', sense channel 1 ' is provided with microwave remote sensor 2 ' and temperature sensor 3 ', microwave remote sensor 2 ' adopts 9.374GHZ oscillator and wave detector, and temperature sensor 3 ' adopts the pt100 thermal resistance temperature sensor.Sense channel 1 ' is fixed on the pressure transducer 11, and pressure transducer 11 adopts the LF10 pressure transducer.Pressure transducer 11 is fixed on the body 12, the material moisture content signal that microwave remote sensor 2 ' is measured, the weight of material signal input that temperature of charge signal that temperature sensor 3 ' is measured and pressure transducer 11 are measured is by 7650, the signal amplification unit 5 ' that 353 integrated circuit are formed amplifies, input central processing unit 7 ' after the AD conversion unit 6 ' conversion that AD0809 forms, CPU adopts 51 series: 8751,89C52 and 89C52, draw water content through computing, temperature and weight, weight calculates material unit weight according to the volume constant V of sense channel 1 ', and according to the compensation of temperature and unit weight with draw the actual value of water content after revising measured water content, and this value is presented on the display unit 8 ', display unit 8 ' can adopt LED charactron or LCD, one unit weight display window is arranged on the display unit 8 ', the unit weight that the CPU computing is drawn is simultaneously displayed on display unit 8 ' the unit weight display window, the unit weight input media is arranged on operating unit 9 ', can directly the known unit weight of material be imported CPU with digital quantity from CPU7 input end 14.Closing presure sensor 11 when employing is directly imported the unit weight mode.Operating unit 9 ' adopts touch formula keyboard, also can adopt other keyboards or knob.All devices are by power supply 10 ' power supply, and whole device is installed in the casing.
Claims (4)
1. quick moisture measurement device of microwave, it mainly comprises sense channel (1 '), microwave remote sensor (2 '), temperature sensor (3 '), signal amplification unit (5 '), AD conversion unit (6 '), central processing unit (7 '), display unit (8 '), operating unit (9 ') and power supply (10 '), it is characterized in that sense channel (1 ') is fixed on the pressure transducer (11), pressure transducer (11) is fixed on the body (12), the material moisture content signal that weight of material signal of being measured by pressure transducer (11) during work and microwave remote sensor (2 ') are measured, the temperature of charge signal input signal amplifying unit (5 ') that temperature sensor (3 ') is measured amplifies and converts to the analog signals of standard, be transformed into digital quantity signal input central processing unit (7 ') through AD conversion unit (6 ') again, draw value of bulk density according to the weight signal of material and the volume constant V computing of sense channel (1 '), according to value of bulk density and temperature value, the moisture content value that microwave remote sensor (2 ') records is revised and compensated, with the actual water content of material demonstration on display unit (8 ') as a result, all devices are powered by power supply (10 ') at last.
2. quick moisture measurement device according to claim 1 is characterized in that a unit weight display window is arranged in addition on display unit (8 '), the material unit weight that central processing unit (7 ') computing is drawn shows.
3. quick moisture measurement device according to claim 1 is characterized in that the water content on the display unit (8 ') shows that switch to unit weight shows temporarily.
4. according to claim 1,2 or 3 described quick moisture measurement devices, it is characterized in that material unit weight input media (13) is arranged on operating unit (9 '), material unit weight input media (13) is imported central processing unit (7 ') with the digital quantity of material unit weight by the input end (14) of central processing unit (7 '), or with the analog quantity of material unit weight input end (15) input AD conversion unit (6 ') by AD conversion unit (6 '), be transformed into digital quantity signal input central processing unit (7 '), the material water content that microwave remote sensor (2 ') records revised and compensated with the temperature value that temperature sensor (3 ') records.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261778 CN2470822Y (en) | 2000-12-04 | 2000-12-04 | Microwave quick-acting water-content measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261778 CN2470822Y (en) | 2000-12-04 | 2000-12-04 | Microwave quick-acting water-content measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN2470822Y true CN2470822Y (en) | 2002-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00261778 Expired - Fee Related CN2470822Y (en) | 2000-12-04 | 2000-12-04 | Microwave quick-acting water-content measuring device |
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| CN (1) | CN2470822Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542437B (en) * | 2003-03-27 | 2010-11-10 | 特鲁菲舍尔股份有限公司及两合公司 | Microwave measuring arrangement for product density measurement |
| CN103244114A (en) * | 2013-05-15 | 2013-08-14 | 西南石油大学 | Device for monitoring formation water out during gas drilling in real time based on microwave technology |
| CN108760772A (en) * | 2018-07-13 | 2018-11-06 | 江苏集萃智能传感技术研究所有限公司 | A kind of portable raw meat detection device, detecting system and detection method based on millimeter wave |
| CN108761041A (en) * | 2018-06-07 | 2018-11-06 | 农业部规划设计研究院 | A kind of device and detection method measuring livestock excrement composting material water ratio |
| CN109540927A (en) * | 2018-12-10 | 2019-03-29 | 天津科技大学 | A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system and method |
-
2000
- 2000-12-04 CN CN 00261778 patent/CN2470822Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1542437B (en) * | 2003-03-27 | 2010-11-10 | 特鲁菲舍尔股份有限公司及两合公司 | Microwave measuring arrangement for product density measurement |
| CN103244114A (en) * | 2013-05-15 | 2013-08-14 | 西南石油大学 | Device for monitoring formation water out during gas drilling in real time based on microwave technology |
| CN108761041A (en) * | 2018-06-07 | 2018-11-06 | 农业部规划设计研究院 | A kind of device and detection method measuring livestock excrement composting material water ratio |
| CN108760772A (en) * | 2018-07-13 | 2018-11-06 | 江苏集萃智能传感技术研究所有限公司 | A kind of portable raw meat detection device, detecting system and detection method based on millimeter wave |
| CN109540927A (en) * | 2018-12-10 | 2019-03-29 | 天津科技大学 | A kind of fruit and vegetable dryness powder moisture bimodulus rapid detection system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |