SPM Vibration transducers

The SPM Vibration transducers are piezo-electric accelerometers of compression type, each individually tuned, with a built-in preamplifier designed for vibration monitoring of industrial machinery. The electrical signal coming from the transducer gives a reflection of all events happening in the machine. It shows the time between events and how much energy is generated from the event. Vibration transducers come in various sizes, configurations, and specifications to perfectly suit your needs. All transducers are internally isolated. The frequency range is specified for the transducer when permanently installed. When using a magnetic foot, the measuring results will be affected at higher frequencies.

The SPM Vibration transducers come in two general categories, Vibration transducers with top entry and side entry. The Vibration transducers with top entry part numbers and Specifications are shown in the table below.

TB = 2-pin connector MIL-C-5015
TD = 4-pin M12 connector

The Vibration transducers with side entry part numbers and Specifications are shown in the table below.

S = Side entry, 2-pin connector MIL-C-5015

What are SPM Vibration Transducers?

SPM vibration transducers are piezo-electric accelerometers of compression type, each individually tuned, with built-in preamplifier, designed for vibration monitoring of industrial machinery. The transducers come in a variety of sizes, configurations, and specifications to perfectly suit your needs. All transducers are internally isolated. The frequency range is specified for the transducer when permanently installed. The measuring results will be affected at higher frequencies when using a magnetic foot.

How do SPM Vibration Transducers work?

The transducers are piezo-electric accelerometers of compression type. Each transducer is individually tuned and has a built-in preamplifier. The electrical signal coming from the transducer gives a reflection of all events happening in the machine. It shows the time between events and how much energy is generated from the event. The transducer reacts with a large amplitude oscillation to the weak shock pulses, because it is excited at its resonance frequency of 32 kHz. Machine vibration, of a much lower frequency, is filtered out. The filtered transducer signal reflects the pressure variation in the rolling interface of the bearing.

Benefits

SPM vibration transducers come in various sizes, configurations, and specifications to perfectly suit your needs. All transducers are internally isolated. The frequency range is specified for the transducer when permanently installed. When using a magnetic foot, the measuring results will be affected at higher frequencies. The transducers are designed to withstand the rigors of industrial environments. Stainless, acid-proof steel housings, case isolation, and hermetic sealing make them very durable. The transducers provide a 4-20 mA output signal proportional to the vibration velocity across its frequency range. The output signal can be transmitted to common process control systems such as PLC, DCS, and SCADA.

Applications

SPM vibration transducers are used for vibration monitoring of industrial machinery. They are suitable for various applications, including monitoring standard production equipment such as pumps and fans. The transducers are designed to withstand the rigors of industrial environments. Stainless, acid-proof steel housings, case isolation, and hermetic sealing make them very durable. The transducers provide a 4-20 mA output signal proportional to the vibration velocity, across its frequency range. The output signal can be transmitted to common process control systems such as PLC, DCS, and SCADA.