Test & Measurement

Measurement Terminal

The EL3751 EtherCAT terminal from Beckhoff Automation (Savage, MN) provides measurement as part of a standard I/O system. It acquires data at 10,000 samples per second and provides measurement accuracy of ±0.01% for most interfaces at 25 °C, and 24-bit resolution. Parameterization options are available for the analog input, which supports measurement functions U, I, R, DMS (strain gauge), and RTD. Optionally, measured data can be transmitted to higher-level automation devices with oversampling. The integrated distributed clocks ensure synchronized sampling across the EtherCAT system. Available measurements include voltage, current, resistance, electrical resistance, RTD, strain gauge/load cell, and potentiometer. For Free Info Visit http://info.hotims.com/61064-400

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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Digital Measurement

Siemens (Munich, Germany) offers Flender Gearlog digital measurement technology for gears that captures values relating to rotational speed, torque, temperature, and vibration using special sensors that record important physical variables. The aim is to compare operational load spectra with the fatigue strength of individual gear unit components over time to match up the gear unit and the working machine for the long term. The system adds up these readings in parallel with machine capacity utilization. The measurement results are logged, saved, and digitally depicted in compressed form. Operators are able to visualize the results at any time or read them out in the form of a dataset. The measurements enable conclusions to be drawn about the applied load and loading capacity of gears, and can be used to identify possible sources of damage, capacity reserves, and overloading in the measured gear. For Free Info Visit http://info.hotims.com/61064-401

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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Handheld Meter

The OMEGA® HHTP21 handheld particulate, humidity, and temperature meter from OMEGA Engineering (Stamford, CT) measures fine and coarse particle pollution from many different sources. Features include fine particulate matter (PM2.5) measurement, health index (0 to 9) detection and alarm, PM2.5 time weighted average reading, data hold and max/min with time stamp function, six-color LED indication air quality at good/moderate/poor, and preset warning point of buzzer alarm, LED, and alarm output. The meter monitors particulate pollution in burning plants, petrochemical facilities, thermal power plants, restaurants, hospitals, mining facilities, metal refineries, and commercial and public buildings. For Free Info Visit http://info.hotims.com/61064-403

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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Bit Error Rate Tester

Keysight Technologies (Santa Rosa, CA) introduced the M8040A bit error rate tester (BERT) for testing PAM-4 and NRZ devices that operate up to 64 GBaud. Engineers in validation labs and R&D who characterize receivers on the physical layer for the next generation of data center interconnects can use the device for test setups and repeatable results. The pattern generator module provides built-in deemphasis, jitter injection, and an optional second channel. Users can select PAM-4 and NRZ in the user interface, eliminating the need for external combiners, cabling, and de-skew to provide PAM-4 signals. For best signal quality, remote heads reduce the distance to the device under test. For Free Info Visit http://info.hotims.com/61064-402

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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Friction Tester

Paul N. Gardner Co. (Pompano Beach, FL) offers a compact CFT friction tester that provides detailed information of the slip characteristics of packaging material. Surface slip is a key factor when printing, erecting, or filling packaging materials on an automatic line. The CFT measures both static and dynamic coefficients of friction. A sample of 2.5 × 2.5" with a weight acting over the entire surface area is moved over another sample at a given speed. Static and dynamic coefficients of friction (COF) are automatically calculated and displayed on-screen. Features include graphical representation of forces during test, and pre-loaded ISO/ASTM/TAPPI test methods. For Free Info Visit http://info.hotims.com/61064-404

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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Signal Analyzer

The MS2840A signal analyzer from Anritsu (Richardson, TX) features frequency coverage of 9 kHz to 44.5 GHz and close-in SSB phase noise performance. Frequency coverage can be extended to the millimeter wave (mmWave) range. The analyzer can conduct wideband and narrowband measurements on next-generation 4G/5G designs, micro wave and mmWave wireless backhaul, 79 GHz band automobile radar, satellite communications, and VHF/UHF Private Mobile Radio (PMR). The unit’s oscillator achieves phase noise performance of –123 dBc/Hz at 1 GHz measurement frequency, and 10 kHz offset frequency. For Free Info Visit http://info.hotims.com/61064-405

Posted in: Products, Manufacturing & Prototyping, Test & Measurement

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In-Flight Pitot-Static Calibration

This precise yet time- and cost-effective method is based on GPS technology using output error optimization. Langley Research Center, Hampton, Virginia NASA’s Langley Research Center has developed a new method for calibrating pitot-static air data systems used in aircraft. Pitot-static systems are pressure-based instruments that measure the aircraft’s airspeed. These systems must be calibrated in flight to minimize potential error. Current methods — including trailing cone, tower fly-by, and pacer airplane — are time- and cost-intensive, requiring extensive flight time per calibration. NASA’s method can reduce this calibration time by up to an order of magnitude, cutting a significant fraction of the cost. In addition, NASA’s calibration method enables near-real-time monitoring of error in airspeed measurements, which can be used to alert pilots when airspeed instruments are inaccurate or failing. Because of this feature, the technology also has applications in the health usage and monitoring (HUMS) industry. Flight test engineers can be trained to use this method proficiently in 12 days without costly specialized hardware.

Posted in: Briefs, Test & Measurement

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