CN214668390U - Improved vibration type viscometer - Google Patents
Improved vibration type viscometer Download PDFInfo
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- CN214668390U CN214668390U CN202120508433.3U CN202120508433U CN214668390U CN 214668390 U CN214668390 U CN 214668390U CN 202120508433 U CN202120508433 U CN 202120508433U CN 214668390 U CN214668390 U CN 214668390U
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Abstract
An improved vibrating viscometer comprises a fixing piece, a vibrating elastic sheet, a distance sensor and a second driving device, wherein the distance sensor is positioned on the fixing piece which is between the fixed end and the free end of the vibrating elastic sheet and is close to the free end; the driving device comprises a driving circuit and a driving main body, wherein the driving circuit provides a preset resonant frequency signal for the driving main body; the temperature detection device is used for detecting the temperature of the detected sample, the second driving device comprises a second driving circuit and a second driving body, and the second driving circuit provides a preset second resonant frequency signal for the second driving body; the first resonant frequency signal and the second resonant frequency signal are alternately transmitted. The utility model discloses not only can measure low viscous liquid, can also measure high viscous liquid.
Description
Technical Field
The utility model relates to a survey instrument of viscosity, especially an improved generation vibrating viscometer.
Background
In the field of new petrochemical new energy materials, the viscosity of the used raw materials is high, the general viscosity is more than 1 million centipoise (cp), a rotary viscometer is generally used for measuring the viscosity in the industry, but the rotary viscometer has the greatest defect of sampling and detecting and is only suitable for being used in laboratories. At present, the production is highly automatic and intelligent, and the sampling detection can not meet the requirements of the industry. Chinese patent document CN 208459216U discloses a vibration-type viscometer which can continuously measure without sampling and is easy to clean and maintain, but has the disadvantage of being unsuitable for use on high-viscosity liquids (liquids with a viscosity of 1 ten thousand centipoise (cp) or more cannot be used), because the vibration spring plate of the technology of the patent cannot be restored to the original position or restored to the original position for too long time due to limited inherent elasticity when measuring high-viscosity liquids, which results in inaccurate or impossible measurement.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems, the present invention provides an improved vibrating viscometer which can be suitable for measuring not only the viscosity of a low-viscosity liquid but also the viscosity of a high-viscosity liquid.
The technical scheme of the utility model is that: an improved vibratory viscometer is provided which is controlled by a controller to automatically measure both the viscosity and temperature of a liquid simultaneously, comprising the following components:
a fixing member for fixing the driving device;
the vibration elastic sheet is made of ferromagnetic materials, one end of the vibration elastic sheet is fixedly connected with the fixing piece, and the other end of the vibration elastic sheet is a free end;
the distance sensor is positioned on the fixing piece which is arranged between the fixed end and the free end of the vibration elastic sheet and close to the free end, and when the free end of the vibration elastic sheet is close to the distance sensor for pre-displacement, the distance sensor is triggered to change from one working state to another working state and sends an electric signal;
the first driving device comprises a first driving circuit and a first driving main body, wherein the first driving circuit is controlled by a controller and provides a preset first resonant frequency signal for the first driving main body;
the temperature detection device comprises a temperature probe and a processing circuit, wherein the temperature probe is used for detecting the temperature of a detected sample, and the processing circuit converts an analog signal of the detected temperature into a digital signal;
the circuit is characterized by further comprising a second driving device, wherein the second driving device comprises a second driving circuit and a second driving main body, and the second driving circuit is controlled by a controller and provides a preset second resonant frequency signal for the second driving main body;
the first resonant frequency signal and the second resonant frequency signal are alternately transmitted.
Preferably, the first driving body includes a first iron core and a first driving coil; the first driving coil generates a magnetic field after being electrified, so that the vibration elastic sheet vibrates positively.
Preferably, a first protection circuit is connected in parallel between the inlet and outlet ends of the first driving coil.
Preferably, the second driving body includes a second iron core and a second driving coil; the second driving coil generates a magnetic field after being electrified, so that the vibration elastic sheet vibrates reversely.
Preferably, a second protection circuit is connected in parallel between the inlet and outlet ends of the second driving coil.
The utility model adopts the second driving device which comprises the second driving circuit and the second driving main body, the second driving circuit is controlled by the controller and provides a predetermined second resonant frequency signal for the second driving main body; when the device is used, the first resonance frequency signal and the second resonance frequency signal are alternately sent, so that the elastic sheet can be assisted to recover when the high-viscosity liquid is measured, and the viscosity of the high-viscosity liquid can be continuously measured; when only low viscosity liquid is measured, the second driving device is not started.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1, fig. 1 shows an improved vibration viscometer, which is controlled by a controller to automatically measure the viscosity and temperature of a liquid at the same time, and comprises the following components:
a fixing member 1 for fixing the driving device 4;
the vibrating elastic sheet 2 is made of ferromagnetic materials, one end 21 of the vibrating elastic sheet 2 is fixedly connected with the fixing piece 1, and the other end of the vibrating elastic sheet 2 is a free end 22;
the distance sensor 3 is positioned on the fixing piece 1 which is arranged between the fixed end and the free end of the vibration elastic sheet 2 and is close to the free end 22, and when the free end 22 of the vibration elastic sheet 2 moves to a preset position close to the distance sensor 3, the distance sensor 3 is triggered to change from one working state to another working state and sends an electric signal;
a first driving device 4 including a first driving circuit 41 and a first driving body 42, the first driving circuit 41 being controlled by a controller 6 to supply a predetermined first resonant frequency signal to the first driving body 42;
the temperature detection device 5 comprises a temperature probe 51 and a processing circuit 52, wherein the temperature probe 51 is used for detecting the temperature of the sample to be detected, and the processing circuit 52 converts the analog signal of the detected temperature into a digital signal;
the utility model also comprises a second driving device 7 arranged at the opposite side of the first driving device 4, wherein the second driving device 7 comprises a second driving circuit 71 and a second driving main body 72, the second driving circuit 71 is controlled by the controller 6 to provide a predetermined second resonant frequency signal for the second driving main body 72;
the first resonant frequency signal and the second resonant frequency signal are alternately transmitted.
When the first driving circuit 41 supplies a regular first resonant frequency signal (rectangular pulse) to the first driving main body 42, the first driving main body 42 generates a magnetic field due to the fact that electricity is supplied, so that the vibration elastic sheet 2 is attracted, the vibration elastic sheet 2 deforms and touches the distance sensor 3, the distance sensor 3 detects the signal, the first driving main body 42 is immediately powered off once the signal is detected, and the operation is repeated in a cycle, so that the vibration elastic sheet 2 vibrates all the time; meanwhile, when the distance sensor 3 detects a signal, the second driving circuit 71 sends a second resonant frequency signal to drive the second driving main body 72, the magnetic field generated after the second driving main body 72 is powered on sucks the vibration spring piece 2 back, and the power-on time of the second driving main body 72 can be set by the controller 6. The controller 6 calculates the relative viscosity of the current environment according to the time from the absence to the presence of the signal of the distance sensor 3. When the viscosity sensor is immersed in liquid, the resistance to the vibrating elastic sheet 2 is different due to different liquid viscosities, so that the time from absence to presence of a signal from the sensor 3 is different, and the relative viscosity of the fluid can be indirectly measured through the time length of the signal from the sensor 3.
The utility model discloses not only can measure the high liquid of viscosity, when not using second drive arrangement 7, also can measure the low liquid of viscosity equally, improved the commonality of current viscometer.
The controller 6 in this embodiment is composed of a chip of the model stm8s105 and its peripheral circuits; the working principle of the present invention is disclosed in chinese patent document CN 208459216U.
The first resonant frequency signal and the second resonant frequency signal are square wave pulse signals.
Preferably, the first driving body 42 includes a first iron core 421 and a first driving coil 422; the first driving coil 422 is electrified to generate a magnetic field, so that the vibrating reed 2 vibrates positively.
Preferably, a first protection circuit 8 is connected in parallel between the inlet and outlet ends of the first driving coil 422.
Preferably, the second driving body 72 includes a second core 721 and a second driving coil 722; the second driving coil 722 generates a magnetic field after being electrified, so that the vibrating reed 2 vibrates in the opposite direction.
Preferably, a second protection circuit 9 is connected in parallel between the inlet and outlet ends of the second driving coil 722.
Preferably, the utility model discloses still include locating part 91, locating part 91 is established at second drive arrangement 7's homonymy, is used for prescribing a limit to vibration shell fragment 2 return is to initial position to it is excessive to prevent second drive arrangement 7 suction, and will vibration shell fragment 2 has drawn and has exceeded vibration shell fragment 2's initial position.
The utility model discloses in, first resonant frequency signal and second resonant frequency signal send in turn and mean first resonant frequency signal and second resonant frequency signal's frequency is the same and the wave form is the same, just the phase difference of first resonant frequency signal and second resonant frequency signal is 180.
In the present invention, the first protection circuit 8 and the second protection circuit 9 have the same structure, and the structure and the operation principle thereof are disclosed in chinese patent document CN 208459216U.
In the present invention, any part not fully described may be the corresponding content disclosed in chinese patent document CN 208459216U.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. An improved vibrating viscometer, controlled by a controller to automatically measure both viscosity and temperature of a liquid, comprising the following components:
a fixing part (1) for fixing the first driving device (4);
the vibrating spring piece (2) is made of ferromagnetic materials, one end (21) of the vibrating spring piece (2) is fixedly connected with the fixing piece (1), and the other end of the vibrating spring piece (2) is a free end (22);
the distance sensor (3) is positioned on the fixing piece (1) which is arranged between the fixed end and the free end of the vibration elastic sheet (2) and close to the free end (22), and when the free end (22) of the vibration elastic sheet (2) is close to the distance sensor (3) for pre-displacement, the distance sensor (3) is triggered to change from one working state to another working state and send an electric signal;
a first driving device (4) including a first driving circuit (41) and a first driving body (42), the first driving circuit (41) being controlled by a controller (6) to supply a predetermined first resonant frequency signal to the first driving body (42);
the temperature detection device (5) comprises a temperature probe (51) and a processing circuit (52), wherein the temperature probe (51) is used for detecting the temperature of the detected sample, and the processing circuit (52) converts an analog signal of the detected temperature into a digital signal;
the device is characterized by further comprising a second driving device (7) arranged on the opposite side of the first driving device (4), wherein the second driving device (7) comprises a second driving circuit (71) and a second driving main body (72), the second driving circuit (71) is controlled by a controller (6), and a preset second resonant frequency signal is provided for the second driving main body (72);
the first resonant frequency signal and the second resonant frequency signal are alternately transmitted.
2. An improved vibratory viscometer of claim 1 wherein the first drive body (42) includes a first core (421) and a first drive coil (422); the first driving coil (422) generates a magnetic field after being electrified, so that the vibrating elastic sheet (2) positively vibrates.
3. An improved vibratory viscometer as set forth in claim 2 wherein a first protection circuit (8) is connected in parallel between the in and out ends of said first drive coil (422).
4. An improved vibratory viscometer of claim 1 or 2, wherein the second drive body (72) comprises a second core (721) and a second drive coil (722); the second driving coil (722) generates a magnetic field after being electrified, so that the vibrating elastic sheet (2) vibrates reversely.
5. An improved vibration viscometer as recited in claim 4, wherein a second protection circuit (9) is connected in parallel between the in and out ends of said second drive coil (722).
6. An improved vibrating viscometer as in claim 1 or 2 further comprising a stop (91), the stop (91) being disposed on the same side of the second drive means (7) for limiting the return of the vibrating dome (2) to the starting position.
7. An improved vibratory viscometer as set forth in claim 1 or 2 wherein said alternating transmission of said first and second resonant frequency signals means that said first and second resonant frequency signals are of the same frequency and of the same waveform, and said first and second resonant frequency signals are 180 ° out of phase.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508433.3U CN214668390U (en) | 2021-03-10 | 2021-03-10 | Improved vibration type viscometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120508433.3U CN214668390U (en) | 2021-03-10 | 2021-03-10 | Improved vibration type viscometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214668390U true CN214668390U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120508433.3U Active CN214668390U (en) | 2021-03-10 | 2021-03-10 | Improved vibration type viscometer |
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|---|---|
| CN (1) | CN214668390U (en) |
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2021
- 2021-03-10 CN CN202120508433.3U patent/CN214668390U/en active Active
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