Abstract: A method is provided for calibration of a vectorial network analyzer, having n measurement ports (n>1) and at least m measurement sites with n+1<m<2n. Calibration includes measurement of three different n-port reflection standards connected between the measurement ports in any sequence, and measurement of different transmission standards connected between two measurement ports, and mathematical determination of the error coefficients of the network analyzer and the error-corrected scattering matrices [Sx] of the n-port calibration standards. The reflection standards, similar to shorts and opens, are unknown and the reflection standard implemented by wave terminations is known, but can be different at each n-fold one-port. The measurement of the transmission standards occurs on a transmission standard known in length and attenuation, which is implemented on each possible two-port by different combination of measurement ports.

Abstract: This invention relates to a measuring device for process technology, to be used in measurement and/or cleaning and/or calibration installations in the area of process automation, for measuring pH-values and/or redox potentials and/or other process parameters, and has a central unit, with which at least one measurement module is connectable. Every measurement module is selectable by the central unit by a selection line assigned thereto.

Abstract: Optical chassis measurement of motor vehicles is carried out by a measuring arrangement equipped with at least one measuring device, in which one or more image capturing devices associated with one another in terms of their position and location record the surface geometry of a vehicle or measurement points arranged on the vehicle, carry out a referencing and/or orientation of the at least one measuring device in relation to the measuring station with reference features that are arranged at particular measuring station coordinates in the measuring station and, based on orientation data and/or association data obtained and based on measurement data obtained during execution of the axle measurement, an evaluation is carried out in an evaluation unit in order to ascertain chassis data.

Abstract: An exemplary measuring device (100) for measuring aspects of objects includes a first contour measuring probe (10), a second contour measuring probe (20) and a processor (30). The first contour measuring probe (10) has a first tip extension (16) and a first displacement sensor (19). The first tip extension (16) is slidable in a first direction. The first displacement sensor (19) is used to sense a displacement of the first tip extension (16). The second contour measuring probe (20) has a second tip extension (26) and a second displacement sensor. The second tip extension (26) is slidable in the first direction. The second displacement sensor is used to sense a displacement of the second tip extension (26). The processor (30) is electrically connected to the first displacement sensor (19) and the second displacement sensor respectively.

Abstract: A flexible process optimizer for recording and analyzing various parameters to improve the efficiency of a production process. The flexible process optimizer acquires and conditions signals from a variety of transducers mounted on a production machine. Through qualitative and quantitative data analysis, specific aspects are of the production process which need improvement are identified. The qualitative evaluation looks at the presence, absence, or duration of certain features of the production cycle as revealed by the sensor data. The quantitative evaluation of data involves the computation of certain data attributes. By providing useful data acquisition and data analysis tools, necessary adjustments are made to the required parameters of the production process to provide improved efficiency. The results of the changes are immediately verifiable using the flexible process optimizer.

Abstract: There is provided a test apparatus for testing a device under test. The test apparatus includes a gradient adjusting section that separately adjusts a gradient of a rising edge of a signal under measurement which is output from the device under test and a gradient of a falling edge of the signal under measurement, a sampling section that samples the signal under measurement whose edge gradients are adjusted by the gradient adjusting section, and a judging section that judges whether the device under test passes or fails the test based on a result of the sampling performed by the sampling section.

Abstract: An index detector detects image coordinates of indices arranged on a scene from an image shot by an imaging device. An orientation sensor is attached to the imaging device, and outputs a measured orientation. An orientation prediction unit predicts an orientation of the imaging device on the basis of the measured orientation obtained by the orientation sensor. A position/orientation calculator receives the predicted orientation of the imaging device and a set of the image coordinates and world coordinates of each index, determines the position of the imaging device and an update value for an azimuth-drift-error correction value of the orientation sensor, and calculates the position and orientation of the imaging device.

Abstract: A pin bearing arrangement for use on an aircraft landing gear includes a pin and a load sensor arrangement, which may include strain gauges for measuring shear loads and accelerometers for measuring loads sustained by the pin. The pin includes a self-contained data logging device for logging data concerning loads sustained by the pin. Thus, inside the pin, there may be provided a processing unit, a memory store, and a battery-based power source. During normal operation of the aircraft fatigue loads may be monitored, the processing unit receiving input signals from the means for measuring loads and storing load data in the memory. The stored load data may periodically be extracted from the memory during maintenance of the aircraft.

Abstract: A pedometer sensor outputs a detecting signal in correspondence with the moving motion of a person to a CPU via a variable filter circuit that has a variable passing frequency band. In a walking state, when a voltage comparing circuit determines that the signal level of the detecting signal is equal to or higher than a predetermined level and a period of the detecting signal from the filter circuit set to a band for running is at a period within a predetermined range, the CPU determines that the moving motion is changed from walking to running, maintains a state in which a frequency switching circuit sets a passing frequency band of the filter circuit to a band for running, and calculates a number of steps based on the detecting signal passing the filter circuit.

Abstract: A method of measuring, monitoring and comparing power generation of at least two renewable power systems, comprising the steps of; providing at least two renewable power systems, at least one data server, at least one generation monitoring device in communication with at least one at premise renewable power system and at least one communication node in communication with at least one of renewable power system, generation monitoring device and data server, determining at least one diagnostic variable for each renewable power system and saving in the data server; determining at least one system coefficient for each renewable power system and saving in the data server; determining the energy generated by each renewable power system; wherein the data server determines comparative information based upon at least one of: background constant, diagnostic variable, system coefficient and energy generated to determine a comparative value of the renewable power system.

Abstract: A method for eliminating the systematic measurement errors from a measurement system, for example a vector network analyzer, such that an accurate representation of the behavior of a nonlinear device can be measured or characterized. The cross-frequency phase and absolute amplitude of the measured voltage waves applied to and emanating from the nonlinear device are measured and error corrected. These waves may be used for nonlinear device characterization or modeling.

Abstract: The apparatus for a test and measurement instrument consists of multiple integrated circuits with each integrated circuit being connected to its own memory controller. At least one of the integrated circuits is a specialized integrated circuit, which may be a graphics processing unit, a digital signal processor, or a field-programmable gate array. Each memory controller is connected to its own memory. The integrated circuits are connected in a circular arrangement by multiple high-speed interconnects. A bridge is connected to at least the first and last integrated circuits. A system bus connects the bridge to an acquisition module. The acquisition module has a signal bus interface with the system bus being connected to the acquisition module and having its own acquisition hardware. The acquisition hardware is a direct memory access machine that can transfer data to any portion of the memory. There is a signal source connected to the signal bus interface.

Abstract: The comparative analysis of a sample, derived from a product, with respect to a database comprises the step of determining the class membership of the different characteristics (variables) describing the samples: whether they are characteristics common to the sample under test and the database, they are characteristics particular to the sample under test, or they are characteristics particular to the database. The assignment of the variables to these classes enables parameters to be defined for global comparison of the sample under test and the database, based on: ratios summarizing the values taken by the variables of the different classes, or the distribution of the variables of the different classes. A machine implementation of the analysis is described.

Abstract: A wireless vehicle service system using addressable devices to avoid interference from similar devices within communications distance. The system includes a host and a plurality of devices that communicate with the host wirelessly. Each of the devices has a unique address, and stores information describing the device, such as the type of the device, a system to which the device is associated, a location of the device, etc. During an enumeration process, each device sends signals including its address and the information describing that device to a host of the vehicle service system. The host stores relationships between the addresses and associated information. For signals sent by the devices and received by the host, the host decodes an embedded address from the signals, and obtains information related to the device sending the signals based on the decoded address and the stored information associated to the decoded address.

Abstract: An exemplary contour measuring method for measuring aspects of objects includes: (1) providing a measuring device including two contour measuring probes and a processor, the contour measuring probe having a tip extension and a displacement sensor used to sense a displacement of the tip extension, the processor being electrically connected to the displacement sensors; (2) driving two tip extensions to contact two opposite surfaces of an object respectively; (3) driving the two tip extensions to move and contacting the two opposite surfaces of the object respectively, while the displacement sensors sending the displacement information on the tip extensions to the processor; (4) computing a cross-section of the object by the processor according to the displacement information on the tip extensions; (5) repeating the step (3) and (4), the processor computing a plurality of cross-sections of the object, the cross-sections compiled to obtain aspects of object.

Abstract: This invention is a temperature-based smart insole capable of continuously or intermittently measuring the foot temperature of the patient at one or more locations of the foot while the insole is worn. The device provides feedback to the patient alerting the individual of risk based on his/her plantar temperatures. Benefits of this device include: its ability to free the patient from the clinical setting and increase patient's confidence to be mobile, thus enhancing circulation while at the same time allowing the patient to self-monitor their feet.

Abstract: A method for testing the accuracy of real time clocks is disclosed. The method includes the steps of: setting test parameters for testing the accuracy of real time clocks (RTCs), the test parameters comprising a test time length, a test time sampling interval, and an acceptable margin; synchronizing the time of an RTC IC and an RTC to be tested via a UUT; reading a current time of the RTC IC and the RTC via the UUT at each test time sampling interval; calculating a time difference between the current time of the RTC IC and the RTC via the UUT, and measuring whether the absolute value of the time difference is less than the acceptable margin; detecting whether the test time length is over; repeating the test process if the test time length is not over, or outputting test pass information if the test time length is over. A related system is also disclosed.

Abstract: The invention provides a sample analyzer by which a position of any error status in the sample analyzer can be easily found by a user to allow the user to carry out an error recovery operation in an accurate and prompt manner. The sample analyzer 1 comprises a sensor for detecting a status of a measurement unit 2 including an error status; a display section 400b; and a controller 400a for controlling the display section 400b so as to display recovery information for recovering the measurement unit 2 from the error status and an error-occurring place image regarding a place where an error has occurred, when the sensor detects the error status of the measurement unit 2.

Abstract: A ferromagnetic object is located by moving magnetic sensors along a path in an area of detection; using the sensors to measure a total magnetic field in the area of detection; using the sensors to measure all three vector components of magnetic field as the sensors travel along the path and passes the object; computing theoretical vector components of the total magnetic field in the area of detection; matching the measured vector components with the computed theoretical vector components of the total magnetic field; calculating an error measurement between matched measured vector components and computed theoretical vector components of the magnetic field; determining optimized values of parameters that minimize an error between the measured vector components and computed theoretical vector components of the magnetic field; and determining a position of the object based on the measured components of the magnetic field as a function of the optimized values.

Abstract: A rolling bearing device with a sensor includes a rotational component estimator that extracts a rotational synchronization component included in the rotation of an inner shaft relative to an outer ring from each of a signal output by a first displacement detector and a signal output by a second displacement detector. The rotational component estimator performs rotational operation and integration operation.