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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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Using PXI to Build a High-Performance MEMS Microphone Testing System

The demand for increasing microphone signal quality from handheld mobile devices has led to the development of microphone signal processing technologies such as: HD audio, noise cancellation, active noise cancellation, beam forming, directional reception, stereo sound field reconstruction, and speech recognition. As well, devices incorporating multiple microphones are becoming more and more popular. Several newly released smart phones now integrate multiple MEMS (Micro Electrical-Mechanical System) microphones for improved background noise cancellation. All flagship smart phone models in introduced in 2015 featured three or more MEMS microphones to support HD audio, ambient noise cancellation, noise filtering, directional reception and speech recognition. Popularity of MEMS microphones is expected to grow.

Posted in: White Papers, Electronics, Data Acquisition, Sensors, Test & Measurement

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Hermetic Seal Leak Detection Apparatus with Variable Size Test Chamber

A streamlined, cost-effective, sensitive approach to detecting leaks in hermetic seals. Marshall Space Flight Center, Alabama NASA’s Marshall Space Flight Center has developed a unique apparatus ideal for use in nondestructive testing (NDT) of hermetic seals of containers or instrumentation. The device is capable of detecting both large and small leaks and can be calibrated to characterize the relative leak rate. Its simple design does not require specialized gases for pressurization and detection, and eliminates the need for expensive instrumentation such as a mass spectrometer to analyze leaks and achieve high sensitivity. Low in cost and simple to manufacture, the patent-pending technology is ideal for use in many industries, from aerospace applications to food packaging and commercial goods.

Posted in: Briefs, Test & Measurement, Containers, Seals and gaskets, Non-destructive tests, Test equipment and instrumentation

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Extreme Low Frequency Acoustic Measurement System

This system detects and locates atmospheric clear air turbulence and severe weather. Langley Research Center, Hampton, Virginia NASA’s Langley Research Center has developed a system to detect and locate atmospheric clear air turbulence (CAT) by means of a ground-based infrasonic array to serve as an early warning system for aircraft. This system could augment existing systems such as pilot reports (PIREPs), airborne lidar, and airborne radar. The NASA system offers a benefit since the existing electromagnetic methods lack targets at 30,000-40,000 feet and will not detect CAT. Because CAT and severe storms emit infrasound that propagates over vast distances through the Earth’s atmosphere, the Langley system offers an excellent early warning opportunity. The system has been able to detect known events — such as detection of the launch of the Space Shuttle in Florida all the way from Virginia. It also has correlated data with NOAA’s PIREPs information.

Posted in: Briefs, Test & Measurement, Measurements, Weather and climate, Acoustics, Turbulence

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