45results about "Converting sensor output using fluid means" patented technology

The present invention discloses a pneumatic sensor, having an air intake and an air outlet. The pneumatic sensor includes a first triboelectric component, a shell, a second triboelectric component and a third triboelectric component, wherein the shell has a hollow structure in a preset shape to form an airflow channel, and the airflow channel is communicated with the air intake and the air outlet, thus allowing the airflow to enter the airflow channel from the air intake and flow out from the air outlet; the first triboelectric component is arranged in the airflow channel, and the second and the third triboelectric components are arranged at positions capable of contacting with the first triboelectric component; and the second and the third triboelectric components include electric signal output terminals of the pneumatic sensor.

The invention relates to a displacement amplification device, and aims at resolving the problems that a device in the prior art is complex in structure and high in cost, and occupied installation space by a displacement amplification mechanism and other devices is large. The displacement amplification device comprises a lever structure and a hydraulic cylinder mechanism, wherein the lever structure comprises an ejection column, a lever and a support shaft; and the hydraulic cylinder mechanism comprises a first piston, a second piston, a connecting rod, hydraulic oil, a hydraulic cylinder and an oil outlet tube. The lever penetrates through the support shaft, the axis of the lever is vertical to the axis of the support shaft, the upper end of the ejection column is arranged below the left end of the lever, one end of the oil outlet tube is communicated with the middle portion of the lower end face of the hydraulic cylinder in a sealed mode, the lower end of the connecting rod is fixedly connected with the upper end face of the first piston, the first piston is arranged in a cylinder body of the hydraulic cylinder, the upper end of the connecting rod is arranged below the right end of the lever, the second piston is arranged in the other end of the oil outlet tube, and hydraulic oil is filled both in the hydraulic cylinder and the oil outlet tube. The displacement amplification device is used in the field of mechanical tools.

A method of determining at least one property of moving clothing of a machine for producing and / or treating a material web, in particular a paper or board web, which includes the following steps: arranging a nozzle opposite the surface of the moving clothing; producing a jet acting on the clothing by way of the nozzle contacting the moving clothing; measuring a variable representative of the flow through the nozzle; measuring a variable representative of the pressure of the jet at the nozzle outlet; determining the speed of the jet at the nozzle outlet from the nozzle flow and the free surface of the jet medium at the point of contact with the clothing; and determining the speed of the jet at the entry into the clothing from the speed of the jet at the nozzle outlet and the speed of the clothing. By using the speed of the jet at the entry into the clothing at a given pressure of the jet at the nozzle outlet and entry into the clothing, the water permeability of the moving clothing is determined and / or at least one surface property of the moving clothing is determined. A corresponding apparatus is also specified.

A contact pressure and position detecting device includes a first sensing layer, a second sensing layer located on the first sensing layer, and a processor. The first sensing layer includes a number of parallel first pipes, and the second sensing layer includes a number of parallel second pipes perpendicular to the first pipes. Each first pipe includes a first pressure sensor received therein for generating a first electrical signal according to the gas pressure therein. Each second pipe includes a second pressure sensor received therein for generating a second electrical signal according to the gas pressure therein. The processor compares the first electrical signals with a first threshold value, and the second electrical signals with a second threshold value to judge which first pipe and second pipe is pressed, and then obtains the contact position on the detecting device.

The invention relates to an injection quality detection method of an L-shaped water pipe used for an ice production water storage box of a refrigerator and a detection device. The detection method includes the following steps: recording air pressure A of an air source at the time when the same is not communicated onto the to-be-detected water pipe; communicating the air source to one end of the to-be-detected water pipe, and recording air pressure B of the air source; comparing a first difference value of the air pressure B and the air pressure A and a standard difference value range, determining a product as qualified if the same is in the range, and determining the product as unqualified if the same is out of the range; closing the other end of the to-be-detected water pipe, recording air pressure C in the to-be-detected water pipe, comparing a second difference value of the pressure C and a standard value and a first standard difference value, and determining the product as unqualified if the second difference value is greater than the first standard difference value; and if the second difference value is less than the first standard difference value, stopping air intaking, recording air pressure D, comparing a third difference value of the air pressure D and the air pressure C and the second standard difference value, determining the product as qualified if the third difference value is less than the second standard difference value, and determining the product as unqualified if the third difference value is greater than the second standard difference value. Through themethod, a detection result on injection quality of the water pipe is accurate, and detection speed is high.

In one aspect, a system for detecting ground engaging tool float for an agricultural implement may include an implement having a ground engaging tool pivotally coupled to a frame and a biasing element coupled between the frame and the ground engaging tool. The biasing element may be configured to bias the ground engaging tool to a predetermined ground engaging tool position relative to the frame. The system may also include a sensor configured to detect a parameter indicative of a current position of the ground engaging tool relative to the frame. Additionally, the system may include a controller configured to monitor the current position of the ground engaging tool based on measurement signals received from the sensor and identify a time period across which the ground engaging tool is displaced from the predetermined ground engaging tool position. The controller may be further configured to compare the identified time period to a threshold time period to determine when a ground engaging tool float event is occurring during operation of the implement.

An electro pneumatic converter with low hysteresis. The electro pneumatic converter includes a first stator, a bent plated second stator, and a rotor. The first stator is equipped with a first stator gap and partially wrapped with a coil. The second stator is equipped with a second stator gap on one side end and a permanent magnet which magnetizes the rotor, on the other side. The first and second stators are installed side by side. The rotor's one side is installed near the permanent magnet, and the other end is installed towards the first and second stator gaps, and in between the first and second stator gaps. The above mentioned rotor will be moved according to electric current.

Thermal drifts compensation method in a gaging device (1) with a transducer; the compensation method includes the steps of : determining and storing, in the course of a calibration operation, values of a thermal compensation coefficient (K) upon variation of a temperature (T) of the gaging device (1); detecting, in the course of a gaging operation, a current reading (X) of the gaging device (1); detecting, in the course of the gaging operation, a current temperature (T) of the gaging device (1); determining, in the course of the gaging operation, the current value of the thermal compensation coefficient (K) by means of the values of the thermal compensation coefficient (K) previously determined and stored in the course of the calibration operation as a function of both the current temperature (T) of the gaging device (1) and the current reading (X) of the gaging device (1); and correcting, in the course of the gaging operation, the current reading (X) of the gaging device (1) by meansof the current value of the thermal compensation coefficient (K).

The present invention provides an electropneumatic converter with low hysteresis characteristics. The electropneumatic converter includes a first stator, a second stator having a curved plate shape, and a movable member. The first stator has a first stator gap and a coil wound around a portion of the first stator. One end of the second stator has a second stator gap, and the other end of the second stator is attached with a permanent magnet for magnetizing the moving part. The first stator gap and the second stator gap are arranged next to each other. One end of the moving part is adjacent to the permanent magnet, and the other end of the moving part extends through the first stator gap and the second stator gap. The traveling member is provided to swim in the first stator gap and the second stator gap according to the current applied to the coil.

Embodiments of the present application relate to threshold value generation for coded ultrasonic sensing. In an ultrasonic detection system that uses frequency-modulation coding to distinguish emittedbursts from multiple transducers, a receiver (600) associated with a transducer uses dynamic thresholding to discriminate valid echoes (906) from system and environmental noise in multiple envelope signals produced by multiple correlators (608, 610). The time-varying dynamic thresholds are generated from the mean of noise in a respective envelope derived from the output of a respective correlator. Multiple thresholds can be combined together (620) such that a single time-varying threshold is applied to all correlators' envelopes. Such thresholding has the benefits of a constant false-alarm rate with regard to detection of echoes (as opposed to false triggering from noise), and, owing to finer-resolution and adaptive thresholds, can detect targets or obstacles as further distances and withgreater time responsiveness.

The invention relates to a method and a detection device for the injection molding quality of an L-shaped water pipe used in an ice-making water storage box of a refrigerator. The detection method includes the following steps: recording the air pressure A when the air source is not connected to the water pipe to be tested; Connect to one end of the water pipe to be tested, and record the air pressure B of the air source; compare the first difference between air pressure B and air pressure A with the standard deviation range, if it is within the range, it is a qualified product, and if it exceeds, it is an unqualified product ; The other end of the water pipe to be tested is closed, record the air pressure C in the water pipe to be tested, compare the second difference between the air pressure C and the standard value with the first standard deviation, if it is greater, it is an unqualified product; if it is less than, Then stop the air intake, record the air pressure D, compare the third difference between the air pressure D and the air pressure C with the second standard deviation, if it is less than, it is a qualified product, if it is greater, it is an unqualified product. Through the invention, the detection result of the injection molding quality of the water pipe is accurate and the detection speed is fast.

The invention relates to a displacement amplification device, and aims at resolving the problems that a device in the prior art is complex in structure and high in cost, and occupied installation space by a displacement amplification mechanism and other devices is large. The displacement amplification device comprises a lever structure and a hydraulic cylinder mechanism, wherein the lever structure comprises an ejection column, a lever and a support shaft; and the hydraulic cylinder mechanism comprises a first piston, a second piston, a connecting rod, hydraulic oil, a hydraulic cylinder and an oil outlet tube. The lever penetrates through the support shaft, the axis of the lever is vertical to the axis of the support shaft, the upper end of the ejection column is arranged below the left end of the lever, one end of the oil outlet tube is communicated with the middle portion of the lower end face of the hydraulic cylinder in a sealed mode, the lower end of the connecting rod is fixedly connected with the upper end face of the first piston, the first piston is arranged in a cylinder body of the hydraulic cylinder, the upper end of the connecting rod is arranged below the right end of the lever, the second piston is arranged in the other end of the oil outlet tube, and hydraulic oil is filled both in the hydraulic cylinder and the oil outlet tube. The displacement amplification device is used in the field of mechanical tools.

The invention discloses a swing type sensor module (10) which comprises a support (102), a sensor oscillator (104) and a liquid spraying device (200). The sensor oscillator (104) is installed on the support (102) in a swing mode, and the liquid spraying device (200) is used for spraying liquid to the sensor oscillator (104). Due to the fact that the liquid spraying device sprays the liquid to the sensor oscillator, even if the sensor oscillator (104) is not used for a long time, the phenomenon that the liquid is dried by air and adheres or restoring force is not enough occurs, the liquid sprayed out by the liquid spraying device can give power to the sensor oscillator to enable the sensor oscillator to be disengaged from the adhesion state and have enough restoring force, and it is ensured that the vibrator can be restored. Thus, when a glass substrate passes through, the state of the glass substrate can be sensitively reflected, normal transmission of signals can be ensured, downtime and overhauling are reduced, and the product yield and the equipment utilization are improved.

The invention discloses a function tester for a DPF / GPF carrier. The function tester is characterized by comprising a cabinet body, an air draft device arranged in the cabinet body and a test arm connected with the cabinet body. The cabinet body comprises a cabinet body I used for placing a DPF / GPF carrier and a cabinet body II provided with a functional panel, the air inlet end of the air draft device is communicated with a test carrier, the air outlet end of the air draft device is communicated with the outside through the side wall of the cabinet body, the test arm is communicated with theoutside through the side wall of the cabinet body, and an anemograph is arranged in the test arm. By utilizing the technical scheme provided by the invention, the wind speed in the DPF / GPF to be measured, especially the wind speed in part of small holes, can be effectively provided in real time, so that the blockage condition of the DPF / GPF can be integrally or locally known based on the wind speed, and a reliable reference standard is provided for maintenance of the DPF / GPF.

The invention discloses a pneumatic sensor, which has an air inlet and an air outlet. The pneumatic sensor includes: a first friction component, a housing, a second friction component and a third friction component; wherein, the housing has a hollow hollow with a preset shape structure to form an airflow passage, and the airflow passage communicates with the air inlet and the air outlet, so that the airflow enters the airflow passage through the air inlet and flows out through the air outlet; the first friction part is arranged in the airflow passage, and the second and third friction parts Set at a position where it can be in contact with the first friction part; when the airflow enters the airflow channel through the air inlet, the first friction part will rub against the second and / or third friction part respectively due to the action of the airflow and generate electrical signals, the second and The third friction component includes an electrical signal output of the pneumatic sensor. The pneumatic sensor can simplify the manufacturing process of the existing pneumatic sensor, increase the driving force of the air flow on the first friction part in the pneumatic sensor, and further improve the working sensitivity and stability of the pneumatic sensor.