15 results about "Pressure recording" patented technology

The utility model relates to an asphalt emptying system which comprises an underground emptying groove, an asphalt storage groove, a nitrogen pipeline, a breathing pipeline and an asphalt emptying header pipe, the nitrogen pipeline, the breathing pipeline and the asphalt emptying header pipe are arranged on the upper portion of the underground emptying groove, an extrusion pipeline is arranged on the lower portion of the underground emptying groove, and the other end of the extrusion pipeline is connected with the asphalt storage groove. The nitrogen pipeline, the breathing pipeline, the asphalt emptying header pipe and the extrusion pipeline are all provided with electromagnetic valves, all the electromagnetic valves are connected with a liquid level recording interlocking alarm instrument and a pressure recording control instrument, and a gas sealing bottom valve is arranged at the connecting position of the extrusion pipeline and the underground emptying groove. The maintenance time is shortened, the workload of operators is reduced, a large amount of investment, operation cost, operation cost and maintenance cost are saved, operation is simplified, maintenance is very convenient, nitrogen serving as back pressure is prevented from being discharged, and the safety of the system is improved.

A wireless straw tip for monitoring the liquid intake of a user that fits on top of a drinking straw. The device 100 has a hollow tube, and a pressure sensor 101, orientation sensor and non-contact li

Systems and methods for measuring stress in a rock mass using sleeve fracturing are provided. A system for measuring stress in the rock mass includes an expandable sleeve insertable into a borehole formed in the rock mass and operable to apply a radially outward force against a wall of the borehole by expansion of the sleeve. A positive displacement pump is operatively connected to the sleeve and is operable to deliver a liquid to the sleeve at a constant flow rate to cause expansion of the sleeve. A pressure sensor is operable to measure a pressure of the liquid. A pressure recorder is operatively connected to the pressure sensor for recording the pressure of the liquid.

This invention relates to the field of pressure measurement technology, specifically a method and system for tracing isothermal pressure. The method includes acquiring the measured wireless pressure recorder; heating a dry isothermal chamber using an air bath dry isothermal control method, causing the temperature of the dry isothermal chamber to sequentially reach and stabilize at a certain value. N A target temperature value is obtained. N A set temperature environment is established; under each set temperature environment, the actual pressure value inside the dry constant temperature chamber is gradually brought closer to the preset standard pressure value using a standard pressure source; during the process of the actual pressure value gradually approaching the preset standard pressure value, samples are obtained. N A set of temperature-pressure deviation data; for N A hierarchical fitting process is performed on a set of temperature-pressure deviation data to obtain the temperature-pressure compensation curve of the wireless pressure recorder under test. This invention achieves calibration of the wireless pressure recorder under test at different temperatures through fitting calculations.

Disclosed are a mechanical pressure gauge and a measurement system. The mechanical pressure gauge comprises a pressure measurement component (11), a pressure recording component (12), a timer (13), a temperature measurement component (14), and a temperature recording component (15), wherein the pressure measurement component is used for measuring the pressure of a fluid; the temperature measurement component is used for measuring the temperature of the fluid; the timer is used for performing timing; the pressure recording component is connected to the pressure measurement component and the timer and is used for recording the change relationship of pressure over time; the temperature recording component is connected to the temperature measurement component and the timer and is used for recording the change relationship of temperature over time. The mechanical pressure gauge uses a mechanical principle to synchronously measure and record pressure and temperature, and therefore is applicable to a downhole environment under ultra-high temperature and high pressure, and can meet the long-acting reliable working requirements of ultra-deep well oil testing.

1. Name of the product in this design: Pressure recorder. 2. Purpose of this product design: This product utilizes pressure recording and measurement. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

Disturbance in a refrigerant circuit. A disturbance in a refrigerant circuit (1) is detected, the circuit (1) comprising a valve (3) having an inlet and an outlet and a first sensor (7) for recording a thermodynamic state at the inlet and a second sensor (8) for recording a thermodynamic state at the outlet, the detection comprising: recording a first signal using the first sensor (7); recording a second signal using a second sensor (8); processing the first signal to determine an upstream pressure pu; processing the second signal to determine a downstream pressure pd; recording a position signal; processing the position signal to determine a position (12) of the valve (3); an emission coefficient cm is determined based on the upstream pressure pu, based on the downstream pressure pd, where the coefficient cm correlates the actual flow rate at the location with the maximum flow rate at the location.

The present invention discloses a body movement state monitoring method and a monitoring device. The body movement state monitoring method is applied to a chip of the monitoring device, and the monitoring device further includes an upper electrode plate, an elastic interlayer, and a lower electrode plate; the method includes: when a monitoring object generates pressure on the monitoring device, detecting the pressure according to the corresponding deformation generated by the elastic interlayer and the distance between the upper electrode plate and the lower electrode plate; recording the pressure area and the pressure position of the pressure within a set time period; determining the body movement state of the monitoring object according to the pressure area and the pressure position of the pressure within the set time period. By using the above method, the body movement state of the monitoring object is determined by detecting the pressure area and the pressure position of the pressure on the leg of the monitoring object within a set time period, without using electronic components such as wearable sensors, with low cost and without affecting the normal activities of the monitor.

Provided is a compaction management system capable of accurately managing the compaction state of a compaction target ground. The compaction management system includes a compaction-pressing-record production unit, a storage device, and a final-compaction-pressing-record selection unit. The compaction pressing record production unit produces a plurality of compaction pressing records, each of which includes the pressing compaction position and the compaction pressing force which are associated with each other. The storage device stores the plurality of compaction pressing records. The final-compaction-pressing-record selection unit selects a selection target compaction pressing force record including the largest compaction pressing force among a plurality of selection target compaction pressing records, which are included in the plurality of compaction pressing records stored in the storage device and produced with respect to the same compaction pressing position, as the final compaction pressing force record with respect to the compaction pressing position.

According to the temporary plugging agent multifunctional experimental device and method, a full-size rock core holder and a conventional rock core holder are arranged at the same time, when a temporary plugging agent dosage experiment is carried out, a full-size rock core is selected for splitting, an artificial fracture is prepared, then a propping agent with the designed concentration is laid, and the temporary plugging agent dosage experiment is carried out. Putting the split full-size rock core into a full-size rock core holder, starting a second constant flow pump, providing confining pressure for the full-size rock core holder, sequentially pumping a temporary plugging agent and fracturing fluid, continuously recording the pressure at an inlet of the full-size rock core holder, and recording the pressure at a high point as the pressure bearing capacity of the temporary plugging agent under the dosage, the temporary plugging agents of different dosages are repeatedly selected for pump injection, the pressure bearing capacity corresponding to the temporary plugging agents of different dosages is obtained, the relation between the temporary plugging agents and the corresponding pressure bearing capacity is simply and conveniently obtained, and when temporary plugging operation is carried out, the temporary plugging agent dosages are directly adjusted according to existing corresponding data.

The invention relates to the technical field of metering, in particular to a mechanical pressure gauge and a measuring system. The mechanical pressure gauge comprises a pressure measuring part, a pressure recording part, a timer, a temperature measuring part and a temperature recording part. Wherein the pressure measuring part is used for measuring the pressure of the fluid. And the temperature measuring component is used for measuring the temperature of the fluid. And the timer is used for timing. The pressure recording part is connected with the pressure measuring part and the timer and used for recording the change relation of the pressure along with time. The temperature recording part is connected with the temperature measuring part and the timer and used for recording the change relation of the temperature along with time. According to the mechanical pressure gauge, the mechanical principle can be adopted to synchronously measure and record the pressure and the temperature, and therefore the mechanical pressure gauge can be suitable for the underground environment under the ultrahigh temperature and the high pressure and can meet the long-acting and reliable work requirement needed by oil testing of an ultra-deep well.

A mobile internet of things (IoT) unit for cleaning grease vents, herein referred to as the ‘unit,’ is disclosed. The unit is comprised of the following parts: a mobile platform with magnetic tracks; a mobile device software application (app); cleaning attachments such as power washers and lasers, sensors such as conductivity meters (to measure buildup), air temperature, velocity and pressure; recording devices such as digital still and streaming cameras; a microcontroller with wireless communications; onboard lighting and a rechargeable battery. Additional details regarding the unit are examined further in this disclosure.

This invention relates to the field of geotechnical engineering technology and discloses a method and system for inclined borehole pressure water testing based on data traceability. The method includes: context binding of the pressure water test data based on the collected metadata of the inclined borehole test section to obtain data lineage flow records and data lineage pressure records; then performing hash feature mapping on the records to obtain integrity verification values; performing trusted data aggregation on the records based on the verification values ​​to obtain traceability data packets; performing tamper-proof chain derivation on the data packets to obtain a traceability data chain and storing it in a distributed storage node; finally reconstructing and fitting the traceability data chain to obtain a flow-pressure relationship curve, and obtaining a pressure water test report of the inclined borehole test section through seepage field back analysis. This invention can improve the efficiency of inclined borehole pressure water testing based on data traceability.

The utility model relates to the technical field of device calibration, in particular to a temperature-adjustable pressure calibration device for a wireless pressure recorder, which is characterized in that the bottom of an outer box body is provided with a support column and a box body dustproof cover, so that the contact conduction between the inside and the outside can be isolated; a matched calibration bracket is placed in a calibration cavity of the calibration tank main body, and a wireless pressure recorder is independently placed in the calibration bracket, so that the temperature uniformity is good; according to the calibration tank, the pressure tank cover is pressed and sealed on the calibration tank main body through the pressing heat preservation unit, so that the stability of a temperature field is ensured; the constant-temperature control unit comprises a semiconductor module placed at the bottom of the constant-temperature bath, a temperature control sensor placed in the calibration cavity, a radiator unit and a circuit board for controlling the temperature, the temperature and pressure values in the calibration cavity of the calibration tank main body can be accurately regulated and controlled, the calibration time is saved, and the calibration is accurate and reliable.