At Sensors Expo, PCB Piezotronics highlighted several products, including pressure and strain sensors as well as a calibration system, shaker kit, and torque transducer.
The company’s new Series 105 and 175 miniature dynamic pressure sensors can monitor the dynamic combustion pressure in diesel and natural gas engines to allow for extended maintenance intervals, improved fuel efficiency, and lower emissions. The devices’ piezoelectric sensing elements allow for fast response times. The sensors have ranges to 3600 psi (4000 psi maximum) and work at temperatures to 300ºC. Series 105 models have a 4.2-mm diaphragm and an M5 thread; Series 175 models have an M14 thread.
The company also introduced the Series 171 sensors for monitoring dynamic pressure oscillations in turbine engines. The sensors have sensitivities of 1200 pC/psi, operate over a pressure range of 10 psi, and have a maximum pressure rating of 600 psi. They operate up to 260ºC.
The company also announced that its Series 4100 and 4200 rotating torque transducers have received CE qualification in accordance with European Union EMC directives. The units serve in dynamometers and other applications. They offer ratings from 50 in.-oz. to 100,000 in.-lb. full-scale and support maximum speeds to 15,000 rpm.
In addition, PCB Piezotronics introduced an in-process force-measurement system, which consists of a Series M240 ICP strain sensor and Model 410A01 ICP signal conditioner. The company also debuted its JM240 ground isolated strain sensors for measuring dynamic and quasi-static stress forces on resistance welding machinery structures.
Also, the company highlighted its Model 482C54 compact bench-top signal conditioner for piezoelectric sensors; its Model 377A13 prepolarized 0.5-in. pressure response type microphone; models 422E91, 422E92, and 422E93 miniature in-line charge converters; Series 102 and 121 pressure sensors for compressors and pumps; the Series 3741 MEMS DC accelerometers, which operate to 200g and to 2 kHz with sensitivities of 1 V/g; the 261A Series triaxial force-link sensors, which can serve in vibration tests of aerospace structures; and the Model 3711 and 3713 MEMS DC (steady-state) response accelerometer for automotive and off-highway testing. The IMI Sensors division presented the Model 649A01 reciprocating machinery protector; the 685B and 686A electronic vibration switches; and the Model 600A13 high-temperature (900ºF) accelerometer. The Larson Davis division highlighted SoundTrack LxT firmware version 1.3 for the Model 831 sound-level meter.
Finally, the company’s The Modal Shop operation highlighted its Model 9155C accelerometer calibration workstation and the K2100B shaker kit. The latter weighs 33 lbs and can provide 440 N of peak force. It features a 1-in. stroke and a frequency range to 3000 Hz. The Model 9155C can calibrate sensors over a range from 0.5 Hz to 50 kHz and calibrate shock sensors from 20g to 10,000g.
