10 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 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.

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.