20 results about "Flow probe" patented technology

The utility model discloses a spiral constant flow probe for radon survey meter soil survey belongs to nuclear radiation detection technical field, including intermediate connecting piece, and the bottom end detachable connection of intermediate connecting piece has the gas guide main pipe, and the upper surface of intermediate connecting piece is provided with the flowmeter connecting hole and short stick connecting hole, and the bottom end of intermediate connecting piece is the circular truncated cone structure and is provided with the outer thread, and the gas flowmeter is connected with radon survey meter still, and the bottom end of intermediate connecting piece is the circular truncated cone structure and is provided with the outer thread, and the utility model sets up and has the intermediate connecting piece of thread, and the leakproofness between intermediate connecting piece can pass through the thread promotion and the detection soil, to make the measurement result more accurate.

This utility model discloses a low-concentration methane carbon emission monitoring system, relating to the field of gas monitoring technology. It includes a gas flow meter comprising a hollow tube and a flow probe. A sealing tube is fixedly connected to the outer side of one end of the hollow tube, and one end of the sealing tube is sealed to the hollow tube. A sampling tube is fixedly connected to the other end of the sealing tube, and the flow probe is fixedly connected to the other end of the hollow tube through the sampling tube. A sampling channel is provided between the sampling tube and the hollow tube, and a sampling interface communicating with the sampling channel is provided on the outer side of the sealing tube. The sampling interface is in fluid communication with a gas sensor. The gas sensor and the gas flow meter are electrically connected to a controller via signal transmission lines. This low-concentration methane carbon emission monitoring system is easy to install and has high detection accuracy.

The utility model discloses a kind of turbulent flow probe posture auxiliary positioning devices, it is related to positioning device technical field, including L-type body, L-type body has clamping groove, and L-type body is fixedly provided with bubble level;Clamping groove is used to fixedly place turbulent flow probe, and turbulent flow probe placed in clamping groove is coaxial with clamping groove;When bubble level is in horizontal state, the axis of clamping groove is vertical posture.It can be conveniently and quickly realized the accurate positioning of turbulent flow probe posture.

An apparatus for measuring flow of cryogen exhaust gas from a freezer includes a flow probe with a resistive heater and a flow probe control. The flow probe control is coupled to the flow probe and the flow probe control includes a control circuit configured to operate the resistive heater at a first temperature for a first period of time, operate the resistive heater at a second temperature for a second period of time, and determine a heat transfer coefficient at the flow probe. The first temperature and the second temperature are different and at least one of the first and second temperatures is greater than a predetermined threshold temperature. A related method is also provided.

The invention relates to a flow probe for the instrumental analysis of a measurement fluid (2) using infrared spectroscopy based on the principle of attenuated total internal reflection, as well as a device and a method for instrumental process bath analysis. The flow probe comprises an IR emitter (3), an internal reflecting element (5), an IR detector (4), and a flow cell enclosed by a flow cell wall (1), wherein the internal reflecting element (5) contacts the measurement fluid (2) with a first reflective surface (5.1). A reflection-enhancing support element (6) rests against an opposing second reflective surface (5.2) of the internal reflecting element (5). The solution according to the invention enables a compact, robust, and real-time analysis of process media, in particular for monitoring chemical parameters in industrial process baths.

The invention discloses a high-speed detection liquid spraying device which comprises a shell, a containing cavity, a first elastic piece, a piston connected with the first elastic piece, a driving motor and a center rod connected with an output shaft of the driving motor. Detection liquid is contained in the containing cavity, and a spraying hole communicated with the containing cavity is formed in the shell; the center rod is sleeved with the inner edge of the piston, a clamping groove extending in the circumferential direction is formed in the outer edge of the center rod, a second elastic piece and a clamping block connected with the second elastic piece are arranged on the piston, and the second elastic piece enables the clamping block to abut against the interior of the clamping groove through radial elastic force; the depth of the clamping groove gradually changes in the circumferential direction, and one end of the clamping groove is flush with the outer edge of the center rod. The injection speed of the detection liquid can be increased, sufficient detection liquid can be rapidly injected within a short time, the testing requirement of a flow logging method based on an underground manual electric field is met, and the oil well flow detection precision is optimized. The invention further discloses an oil well flow probe which has the beneficial effects mentioned above.

Described herein are thermal mass flow sensors that combine calorimetric and anemometric (e.g., hot-wire) elements to provide a hybrid approach to determining flow rate of a liquid. The flow probes or flow sensors are configured to use a heater to apply heat to a thermally-conducting material in contact with the flowing liquid, to measure a temperature of the thermally-conducting material upstream of the heater and downstream or at the heater, to adjust power to the heater to achieve a targeted temperature difference, and to determine a flow rate based at least in part on the power supplied to the heater and the measured temperatures. This approach provides flow rate due at least in part to the fluid cooling the thermally-conductive material proportionate to flow rate with non-linear effects. This hybrid approach can provide accurate readings of flow rates of liquids delivered through an IV line to a patient.

The embodiment of the application discloses a flow probe high-precision time detection system, method, equipment and medium, the system comprises: a flow probe, a first frequency counter, a second frequency counter and a B code signal source, wherein: the B code signal output end of the B code signal source is connected with the B code signal input end of the flow probe; the 1PPS signal output end of the B code signal source and the 1PPS signal output end of the flow probe are connected to channel A and channel B of the first frequency counter respectively; and the 1MHz signal output end of the B code signal source and the 1MHz signal output end of the flow probe are connected to channel A and channel B of the second frequency counter respectively.

The invention relates to a breathing circuit structure of an anaesthesia machine and a method for calibrating a flow probe. The breathing loop structure comprises a water accumulation cup branch which is branched from an expiration flow path between the expiration flow probe and the expiration one-way valve, and a water accumulation cup is detachably connected to the tail end of the water accumulation cup branch. The calibration method comprises the following steps: connecting the connecting pipe between the expiration connector and the inspiration connector to form fluid communication between the expiration connector and the inspiration connector; the water accumulating cup branch is separated from the water accumulating cup, so that the water accumulating cup branch is communicated with the external atmosphere; working gas is injected through the fresh gas branch, sequentially passes through the inspiration one-way valve, the inspiration flow probe, the inspiration connector, the connecting pipe, the expiration connector and the expiration flow probe and finally flows out of the water accumulation cup branch. The flow of the working gas flowing out of the water accumulation cup branch and the output results of the inspiration flow probe and the expiration flow probe corresponding to the flow are detected, so that the inspiration flow probe and the expiration flow probe are calibrated.

A device and method for simulating the influence of temperature variables on storage tank fire behavior relates to the technical field of liquid fuel combustion research, and comprises a thermal insulation device, a combustion device arranged in the thermal insulation device, a second temperature probe and a second liquid level probe arranged in the combustion device, and a first temperature probe and a first liquid level probe arranged in the thermal insulation device. The heat preservation device is communicated with the heat exchange device through a liquid inlet pipe and a liquid outlet pipe, an electric valve and a flow probe are arranged on the liquid inlet pipe and the liquid outlet pipe respectively, and the infrared probe, the visible light probe and the heat radiation probe are connected with the monitoring device. The combustion device is arranged in the heat preservation device with the heat preservation liquid medium, the temperature control device is used for controlling the temperature of the heat preservation liquid medium and simulating the temperature of the storage tank fire behavior combustion environment, and the monitoring probe and the monitoring device are used for collecting and displaying combustion behavior data and images.

The invention discloses a multi-nozzle detection liquid high-speed spraying device which comprises a shell, a containing cavity, a first elastic piece, a piston, a driving motor and a center rod. Detection liquid is contained in the containing cavity, a plurality of nozzles distributed in the axial direction are arranged on the shell, and each nozzle is detachably connected with a plug; the piston is hollowly sleeved on the center rod, the center rod is provided with a clamping groove extending along the circumferential direction, the piston is provided with a second elastic piece and a clamping block, and the second elastic piece is used for abutting the clamping block into the clamping groove; the depth of the clamping groove gradually changes in the circumferential direction, and one end of the clamping groove is flush with the outer edge of the center rod. According to the method, the injection speed of the detection liquid can be increased, the sufficient detection liquid can be rapidly injected within a short time, the testing requirement of a flow logging method based on an underground manual electric field is met, the oil well flow detection precision is optimized, and meanwhile the time of the detection liquid reaching the measuring exploring tube in oil wells with different flow speeds tends to be consistent as much as possible. The invention further discloses an oil well flow probe which has the beneficial effects mentioned above.

The vertical positioning device comprises four vertical positioning assemblies and a plurality of bearing bushes different in size, a whole defined by the four vertical positioning assemblies is arranged on a pipeline needing to be punched in a sleeving mode, and the space between the whole defined by the four vertical positioning assemblies and the pipeline needing to be punched is filled with the bearing bushes; wherein each vertical positioning assembly comprises a positioning main body and a vertical sleeve, the positioning main body is arranged on a pipeline needing to be punched in a sleeving mode, two circular cylinders defined by the vertical sleeves of the four vertical positioning assemblies are used for forming reference positions for punching, and the reference positions are used for installing a transmitting end and a receiving end of a flow meter; and rectangular grooves I for forming a datum line H are formed in the straight edges of the two sides of the positioning main body. According to the vertical positioning device for pipeline punching, under the positioning hole of the vertical positioning device, correct installation of the flow probe can be guaranteed, stable flow meter probe signal strength can be obtained, and the installation requirement of metering equipment is met.

This utility model discloses an insertion-type thermal gas mass flow meter, including a flow meter body and a pipe. A base is welded to the upper end of the pipe. The outer walls of two fixing plates are both circular and located on the same axis. A fixing mechanism is installed on the outer wall of the first fixing plate, and a limiting mechanism is installed on the outer wall of the pipe. The fixing mechanism is used to fix the first and second fixing plates, and the limiting mechanism is used to limit the fixing mechanism. This utility model, through the sliding fit between the flow probe and the base, and the design of the screw and the arc-shaped groove in the fixing mechanism, allows the operator to flexibly fine-tune the angle of the flow meter body during installation. Even if the base undergoes thermal deformation due to welding, the flow meter body can be rotated to allow the screw to slide along the groove, quickly calibrating the perpendicularity of the flow probe to the pipe axis, effectively avoiding inaccurate measurement data caused by installation angle deviation.

The utility model relates to the field of gas extraction technology, in particular to a coal mine gas extraction comprehensive parameter measuring device which comprises a gas main pipeline and a measuring instrument provided with a flow probe and a concentration probe. A plurality of locking type ball valve detection elbows are installed on the flange locking type junction station, drainage hoses are installed on the locking type ball valve detection elbows, and detection type corrugated butt joints are installed in the middles of the drainage hoses. A locking type orifice elbow used for being connected with a pipeline stretching into a drill hole to extract gas is installed at the end, away from the locking type ball valve detection elbow, of the drainage hose, a first detection opening allowing a probe to be inserted is formed in the flange locking type junction station, and a second detection opening allowing the probe to be inserted is formed in the detection type corrugated butt joint. A worker can selectively insert a probe into the first detection opening and the second detection opening to measure the gas concentration and flow, and the device is convenient to use, high in measurement accuracy and high in safety.

In flow probes (11) including measuring sensors (2) on a distal end (3) of a shaft (4), it is also provided to configure at least one distance sensor (7, 8, 9) and an acceleration sensor (16) on this distal end (3), in order to enable an automatic distance measurement and / or determination of the position and / or the orientation of the measuring sensor (2) within a measuring range (6), and thus the recording of spatially resolved measured values.

The invention belongs to the technical field of traffic probes in a data communication network, and relates to a programmable router with a traffic probe, and a traffic acquisition method and system. In the programmable router, a traffic probe is deployed at an intranet switching side of the programmable router, and original traffic and metadata obtained from the original traffic according to an acquisition rule are transmitted by using a service interface of the programmable router; the programmable router is integrated with a data analysis function to realize flow characteristic analysis of metadata; the programmable router is integrated with a traffic storage function, a storage instruction is controllably configured according to a result of traffic feature analysis, and traffic with problems is controllably stored in the programmable router. The method has the advantages of efficient flow acquisition capability, local storage capability, high-precision anomaly detection capability and the like.

This invention relates to the field of medical device technology, and particularly to a storage system, method, and anesthesia machine for storing calibration data of an anesthesia machine flow acquisition system. The flow acquisition system includes: a flow probe (1), a first sampling line (2), a second sampling line (3), a differential pressure sensor (4), and a main control chip (5); the storage system is located between the main control board (A) and the circuit (B) of the anesthesia machine, including a first differential pressure conduction port (6) for connecting the first sampling line (2) and the differential pressure sensor (4); a second differential pressure conduction port (7) for connecting the second sampling line (3) and the differential pressure sensor (4); a storage chip (8), which is designed separately from the main control chip (5), for storing historical calibration data of the flow probe (1) and calibration data generated by the main control chip (5); and a data transmission component for transmitting calibration data from the main control chip (5) to the storage chip (8).

An apparatus for measuring flow of cryogen exhaust gas from a freezer includes a flow probe with a resistive heater and a flow probe control. The flow probe control is coupled to the flow probe and the flow probe control includes a control circuit configured to operate the resistive heater at a first temperature for a first period of time, operate the resistive heater at a second temperature for a second period of time, and determine a heat transfer coefficient at the flow probe. The first temperature and the second temperature are different and at least one of the first and second temperatures is greater than a predetermined threshold temperature. A related method is also provided.

The utility model relates to a quick-release bracket suitable for a catch basin speed measurement flow probe, which is used for fixing a threading pipe connected with the probe on the well wall of a catch basin and arranging the probe in the catch basin, and comprises lower steel, upper steel and lower steel, the interior of the short square steel is of a cavity structure, the top end of the lower square steel is sleeved with the lower half part of the cavity, and the short square steel and the lower square steel are fixed to the well wall together; the upper square steel is in an L shape and is provided with a first fixing end horizontally arranged and perpendicular to the well wall and a first supporting end vertically arranged and tightly attached to the well wall, the top end of the first supporting end is connected with the first fixing end, and the bottom end of the first supporting end is inserted into the upper half part of the cavity of the short square steel to be supported; and the hoop is fixedly connected with the first fixed end of the upper steel through a fastener to form an accommodating space, and the threading pipe is limited and fixed in the accommodating space. The support is rapid and convenient to install and maintain, meanwhile, the structural strength of the support is enhanced, the working efficiency is greatly improved, and the support has great practical value.