CN216117610U - Lubricating oil parameter detection device capable of simulating high temperature and high pressure - Google Patents
Lubricating oil parameter detection device capable of simulating high temperature and high pressure Download PDFInfo
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- CN216117610U CN216117610U CN202122556001.2U CN202122556001U CN216117610U CN 216117610 U CN216117610 U CN 216117610U CN 202122556001 U CN202122556001 U CN 202122556001U CN 216117610 U CN216117610 U CN 216117610U
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Abstract
The utility model discloses a lubricating oil parameter detection device capable of simulating high temperature and high pressure, which comprises a sensor detection unit, a controller and an electronic display, wherein the sensor detection unit comprises a filtering noise reduction circuit, an enhancement adjusting circuit and a waveform amplitude stabilizing circuit.
Description
Technical Field
The utility model relates to the technical field of lubricating oil parameter detection equipment, in particular to a lubricating oil parameter detection device capable of simulating high temperature and high pressure.
Background
In the operation process of mechanical equipment, the function of lubricating oil is very important and is the basis for ensuring the normal operation of all active equipment. But the machining industry has the characteristics of various equipment types, small volume of a lubricating oil tank, complicated distribution and the like, and the oil sample detection needs the processes of sampling, sample feeding, result waiting and the like, so that the application of the movable comprehensive detection equipment greatly improves the lubricating oil parameter detection efficiency. The existing lubricating oil parameter detection device can simultaneously detect index parameters of lubricating oil, including physical and chemical indexes: temperature, density, viscosity, dielectric constant, relative humidity, water content and the like, and when the pressure sensor is in a high-temperature detection environment, the detection signal output of the pressure sensor is easily affected by temperature drift, so that the signal output is unstable, and the detection result is affected.
The present invention provides a new solution to this problem.
SUMMERY OF THE UTILITY MODEL
In view of the above situation, the present invention is directed to provide a device for detecting parameters of lubricating oil capable of simulating high temperature and high pressure.
The technical scheme for solving the problem is as follows: can simulate highly compressed lubricating oil parameter detection device of high temperature, including sensor detecting element, controller and electronic display, sensor detecting element falls circuit, reinforcing regulating circuit and the wave form steady amplitude circuit of making an uproar including the filtering, the signal output part of the input connection sensor that the circuit was fallen in the filtering, the output of the circuit that falls in the filtering is connected reinforcing regulating circuit's input, reinforcing regulating circuit's output is connected the input of the wave form steady amplitude circuit, the output of the wave form steady amplitude circuit is connected the controller.
Preferably, the filtering and noise reducing circuit comprises an inductor L1, one end of an inductor L1 is connected to the sensor and is grounded through a resistor R1, and the other end of an inductor L1 is connected to the input end of the boost regulating circuit and is grounded through a capacitor C1.
Preferably, the boost regulating circuit includes an operational amplifier AR1, a non-inverting input terminal of the operational amplifier AR1 is connected to the other end of the inductor L1 and is grounded through a resistor R2, an inverting input terminal of the operational amplifier AR1 is grounded through a capacitor C2 and is connected to the source of the MOS transistor Q1 and one end of the resistor R5 through a resistor R4, the other end of the resistor R5 is grounded, an output terminal of the operational amplifier AR1 is connected to the cathode of the zener diode DZ1 and the gate of the MOS transistor Q1 through a resistor R3, the anode of the zener diode DZ1 is grounded, and the drain of the MOS transistor Q1 is connected to the +5V power supply.
Preferably, the waveform amplitude stabilizing circuit comprises a MOS transistor Q2, a drain of the MOS transistor Q2 is connected to a source of the MOS transistor Q1, and is connected to a gate of the MOS transistor Q2 and one end of a capacitor C3 through a resistor R6, the other end of the capacitor C3 is grounded, and a source of the MOS transistor Q2 is connected to the controller and is grounded through a resistor R7.
Preferably, the sensor is a pressure sensor.
Through the technical scheme, the pressure sensor is adopted to measure the oil pressure of the lubricating oil, and the detection signals of the pressure sensor are sequentially sent to the filtering noise reduction circuit, the enhancement adjusting circuit and the waveform amplitude stabilizing circuit to be processed, so that the temperature drift generated by the output of the detection signals of the pressure sensor is effectively avoided, the equipment can realize accurate measurement in a high-temperature detection environment, and the validity of the data detection result of the equipment is improved.
Drawings
FIG. 1 is a schematic circuit diagram of a sensor detection unit of the present invention.
Detailed Description
The foregoing and other technical and scientific aspects, features and utilities of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
But simulation high temperature highly compressed lubricating oil parameter detection device, including sensor detecting element, controller and electronic display, sensor detecting element falls circuit, reinforcing regulating circuit and the wave form steady amplitude circuit of making an uproar including the filtering, the signal output part of the input connection sensor that the circuit was fallen in the filtering falls, the output of the circuit that falls in the filtering is connected reinforcing regulating circuit's input, reinforcing regulating circuit's output is connected the input of the wave form steady amplitude circuit, the output of the wave form steady amplitude circuit is connected the controller.
The filtering and noise reducing circuit comprises an inductor L1, one end of an inductor L1 is connected with the sensor and is grounded through a resistor R1, and the other end of an inductor L1 is connected with the input end of the enhancement adjusting circuit and is grounded through a capacitor C1.
The enhancement adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with the other end of an inductor L1 and is grounded through a resistor R2, the inverting input end of the operational amplifier AR1 is grounded through a capacitor C2 and is connected with the source of a MOS transistor Q1 and one end of a resistor R5 through a resistor R4, the other end of a resistor R5 is grounded, the output end of the operational amplifier AR1 is connected with the cathode of a voltage stabilizing diode DZ1 and the grid of a MOS transistor Q1 through a resistor R3, the anode of the voltage stabilizing diode DZ1 is grounded, and the drain of the MOS transistor Q1 is connected with a +5V power supply.
The waveform amplitude stabilizing circuit comprises a MOS tube Q2, the drain electrode of the MOS tube Q2 is connected with the source electrode of the MOS tube Q1, the drain electrode of the MOS tube Q2 is connected with the grid electrode of the MOS tube Q2 and one end of a capacitor C3 through a resistor R6, the other end of the capacitor C3 is grounded, and the source electrode of the MOS tube Q2 is connected with the controller and is grounded through a resistor R7.
When the device is used specifically, the pressure sensor is adopted to measure the oil pressure of the lubricating oil, and in order to avoid the interference of temperature to a detection signal, the detection signal of the pressure sensor is sequentially sent to the filtering noise reduction circuit, the enhancement adjusting circuit and the waveform amplitude stabilizing circuit for processing. Firstly, a filtering and noise reducing circuit filters high-frequency noise generated by equipment operation by utilizing an LC filtering principle, and then the high-frequency noise is sent into an enhancement adjusting circuit to amplify a detection signal; wherein, fortune ware AR1 utilizes the cophase principle of enlargiing to strengthen the detected signal, and zener diode DZ1 has fine stabilizing effect to the signal after the reinforcing to set up MOS pipe Q1 and follow the enlargies to the detected signal, greatly promoted signal processing efficiency.
In order to further improve the stability of the detection signal, a waveform amplitude stabilizing circuit is arranged to further regulate the detection signal. The output signal of the MOS transistor Q1 is stabilized by the MOS transistor Q2, and the gate signal of the MOS transistor Q2 is stabilized by the capacitor C3, so that the output signal waveform of the MOS transistor Q2 is effectively improved. And after the controller performs waveform analysis processing on the detection signal, calculating the detection parameter value of the lubricating oil pressure, and sending all the processed parameter values to the electronic display.
In conclusion, the utility model can realize accurate measurement in a high-temperature detection environment, effectively avoid temperature drift generated by the output of the detection signal of the pressure sensor and improve the validity of the data detection result of the equipment.
While the utility model has been described in further detail with reference to specific embodiments thereof, it is not intended that the utility model be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (5)
1. Can simulate high-temperature high-pressure lubricating oil parameter detection device, including sensor detecting element, controller and electronic display, its characterized in that: the sensor detection unit comprises a filtering and noise reduction circuit, an enhancement adjusting circuit and a waveform amplitude stabilizing circuit, wherein the input end of the filtering and noise reduction circuit is connected with the signal output end of the sensor, the output end of the filtering and noise reduction circuit is connected with the input end of the enhancement adjusting circuit, the output end of the enhancement adjusting circuit is connected with the input end of the waveform amplitude stabilizing circuit, and the output end of the waveform amplitude stabilizing circuit is connected with the controller.
2. The device for detecting the parameters of the lubricating oil capable of simulating the high temperature and the high pressure according to claim 1, wherein: the filtering and noise reducing circuit comprises an inductor L1, one end of an inductor L1 is connected with the sensor and is grounded through a resistor R1, and the other end of an inductor L1 is connected with the input end of the enhancement adjusting circuit and is grounded through a capacitor C1.
3. The device for detecting the parameters of the lubricating oil capable of simulating the high temperature and the high pressure according to claim 2, wherein: the enhancement adjusting circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with the other end of an inductor L1 and is grounded through a resistor R2, the inverting input end of the operational amplifier AR1 is grounded through a capacitor C2 and is connected with the source of a MOS transistor Q1 and one end of a resistor R5 through a resistor R4, the other end of a resistor R5 is grounded, the output end of the operational amplifier AR1 is connected with the cathode of a voltage stabilizing diode DZ1 and the grid of a MOS transistor Q1 through a resistor R3, the anode of the voltage stabilizing diode DZ1 is grounded, and the drain of the MOS transistor Q1 is connected with a +5V power supply.
4. The device for detecting the parameters of the lubricating oil capable of simulating the high temperature and the high pressure according to claim 3, wherein: the waveform amplitude stabilizing circuit comprises a MOS tube Q2, the drain electrode of the MOS tube Q2 is connected with the source electrode of the MOS tube Q1 and is connected with the grid electrode of the MOS tube Q2 and one end of a capacitor C3 through a resistor R6, the other end of the capacitor C3 is grounded, and the source electrode of the MOS tube Q2 is connected with the controller and is grounded through a resistor R7.
5. The device for detecting the parameters of the lubricating oil capable of simulating the high temperature and the high pressure according to any one of claims 1 to 3, wherein: the sensor is a pressure sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122556001.2U CN216117610U (en) | 2021-10-23 | 2021-10-23 | Lubricating oil parameter detection device capable of simulating high temperature and high pressure |
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| CN202122556001.2U CN216117610U (en) | 2021-10-23 | 2021-10-23 | Lubricating oil parameter detection device capable of simulating high temperature and high pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115016569A (en) * | 2022-06-21 | 2022-09-06 | 中维化纤股份有限公司 | Nylon polymerization cauldron temperature control system |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115016569A (en) * | 2022-06-21 | 2022-09-06 | 中维化纤股份有限公司 | Nylon polymerization cauldron temperature control system |
| CN115016569B (en) * | 2022-06-21 | 2024-02-20 | 中维化纤股份有限公司 | Nylon polymerization reaction kettle temperature control system |
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