"L" Series. Open Face Piezo Transducers. Dimensions: Dimensions are in mm
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1 Dimensions: Dimensions are in mm Specification 4LR1 4LT1 Center Frequency Bandwidth (-6dB) 4LR1 4LT1 Transmitting Sound Pressure Level at 4Khz; db re 2µbar per 1 at 3cm Receiving Sensitivity at 4Khz db = 1 volt/µbar Capacitance at 1Khz ±2% Max. Driving Voltage (cont.) Transmitter Receiver 4±Khz 2.5Khz Khz 112dB min. db min. 1 pf 1 Total Beam Angle -6dB 72 typical Operation Temperature -3 to 8 C Storage Temperature -4 to 85 C Impedance/Phase Angle vs. Frequency Tested under 1 Oscillation Level 4LR1 Impedance 4LR1 Phase 4LT1 Impedance 4LT1 Phase Impedance (Ohm) Sensitivity/Sound Pressure Level Tested under Beam Angle: Tested at 4Khz frequency 13 Phase Angle (Degree)
2 4LR1 Receiver 4LT1 Transmitter Sensitivity Variation vs. Loaded Resistor SPL Variation vs. Driving Voltage -4 1K 3.9K 1K 39K K 3K Center Frequency Shift vs. Loaded Resistor Center Frequency Shift vs. Driving Voltage K 3.9K 1K 39K K 3K Sensitivity Variation vs. Temperature SPL Variation vs. Temperature
3 Dimensions: dimensions are in mm Specification 4LR12 4LT12 Center Frequency Bandwidth (-6dB) 4LT12 4LR12 Transmitting Sound Pressure Level at 4Khz; db re 2µbar per 1 at 3cm Receiving Sensitivity at 4Khz db = 1 volt/µbar Capacitance at 1Khz ±2% Max. Driving Voltage (cont.) Transmitter Receiver 4±Khz Khz Khz db min. -67dB min. 24 pf 2 Total Beam Angle -6dB 85 typical Operation Temperature -3 to 8 C Storage Temperature -4 to 85 C Impedance/Phase Angle vs. Frequency Tested under 1 Oscillation Level 4LR12 Impedance 4LR12 Phase 4LT12 Impedance 4LT12 Phase Impedance (Ohm) Sensitivity/Sound Pressure Level Tested under Phase Angle (Degree) Beam Angle: Tested at 4Khz frequency
4 4LR12 Receiver 4LT12 Transmitter Sensitivity Variation vs. Loaded Resistor SPL Variation vs. Driving Voltage -4 1K 3.9K 1K 39K K 3K Center Frequency Shift vs. Loaded Resistor Center Frequency Shift vs. Driving Voltage K 3.9K 1K 39K K 3K Sensitivity Variation vs. Temperature SPL Variation vs. Temperature
5 Open Face Piezo Transducer Dimensions: dimensions are in mm Specification 4LT16 4LR16 Center Frequency Bandwidth (-6dB) 4LT16 4LR16 Transmitting Sound Pressure Level at 4Khz; db re 2µbar per 1 at 3cm Receiving Sensitivity at 4Khz db = 1 volt/µbar Capacitance at 1Khz ±2% Max. Driving Voltage (cont.) Transmitter Receiver 4±Khz Khz 2.5Khz db min. db min. 24 pf 2 Total Beam Angle -6dB 55 typical Operation Temperature -3 to 8 C Storage Temperature -4 to 85 C Impedance/Phase Angle vs. Frequency Tested under 1 Oscillation Level 4LR16 Impedance 4LR16 Phase 4LT16 Impedance 4LT16 Phase Impedance (Ohm) Sensitivity/Sound Pressure Level Tested under Beam Angle: Tested at 4Khz frequency Phase Angle (Degree)
6 4LR16 Receiver 4LT16 Transmitter Sensitivity Variation vs. Loaded Resistor SPL Variation vs. Driving Voltage -4 1K 3.9K 1K 39K K 3K Center Frequency Shift vs. Loaded Resistor Center Frequency Shift vs. Driving Voltage 1K 3.9K 1K 39K K 3K Sensitivity Variation vs. Temperature SPL Variation vs. Temperature
7 Technical Specifications for L S e r i e s The piezo-based "L" Series transducers offer the design engineer a unique blend of size and acoustical performance when developing an ultrasonic sensor. This line of transducers is specifically intended for operation in air at ultrasonic frequencies and consists of transmitter/receiver pairs. All use screen mesh open face construction housed in a metal case. The key features: Wide selection and increased sensitivity for non hostile environments. " L" Series transducers are non inventory items. For ordering information please contact Polaroid OEM Components Group
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Keywords: Ultrasonic Testing (UT), Air-coupled, Contact-free, Bond, Weld, Composites
Single-Sided Contact-Free Ultrasonic Testing A New Air-Coupled Inspection Technology for Weld and Bond Testing M. Kiel, R. Steinhausen, A. Bodi 1, and M. Lucas 1 Research Center for Ultrasonics - Forschungszentrum
Tel: (949) Fax: (949) IAA100 Product Manual
IAA100 Product Manual Table of Contents Default Settings... 3 Connections... 3 Standard Span & Zero Adjustment... 4 Shunt Readings... 5 Digitally Controlled Remote Shunt... 5 Switch Configurations... 6