The frequency range is 20Hz to 100kHz. It is a microphone suitable for ultrasonic measurements.
TYPE4158N is a free-field type 1/4 inch microphone with a frequency range of 20Hz to 100kHz. The sound pressure sensitivity, including the preamplifier, is -50dB±3dB re 1V/Pa (3.2mV/Pa). Due to its compact size, it is less affected by reflections and diffraction, making it suitable for measuring high sound pressure levels with a sensitivity of 3.2mV/Pa. As it is IEPE compatible, it can be directly connected to an FFT analyzer or AD converter that provides constant current supply. 【Features】 ■ Can be directly connected to analyzers such as FFT analyzers using a BNC cable ■ Enables high-precision measurements at a low cost ■ Achieves long-term stability through forced aging at high temperatures of 360℃ *For more details, please refer to the external link page or feel free to contact us.
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【Specifications】 ■Diameter: 1/4 inch ■Open circuit sensitivity: -48dB (4.0mV/Pa) ■Sound pressure sensitivity (including preamp): -50dB±3dB re 1V/Pa (3.2mV/Pa) ■Polarization voltage: 0V ■Frequency range: 20Hz to 100kHz (without grid) ■Maximum sound pressure level: 152dB ■Self-noise level: 38dB (A) ■Temperature coefficient: 0.009dB/℃ or less ■Supply voltage: DC15 to 28V ■Constant current: 0.5 to 4mA ■Output impedance: approximately 100Ω ■Connector: SMB connector ■TEDS: Supported/Not supported ■Operating temperature and humidity range: -10℃ to +50℃; 90% or less (no condensation) ■Storage temperature and humidity range: Room temperature (40% or less) ■Cable: SMB-BNC cable (3m) ■Outer diameter and dimensions: φ7×50 ■Weight: 6g *For more details, please refer to the external link page or feel free to contact us.
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【Usage】 ■Array *For more details, please refer to the external link page or feel free to contact us.
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Aco Corporation was founded in 1972, starting with the manufacturing of microphones, and in recent years has successfully produced 1/8-inch microphones. As an acoustic measurement instrument manufacturer, we have built a track record through research and development in collaboration with user companies and university research institutions. Based on this experience, we ventured into the vibration measurement sector in 1972 and have since grown into a leading company in the sensor industry. Additionally, we have achieved success in overseas sales, which began in 1976, earning a high reputation as "Aco of Sensors" in countries such as the United States, the United Kingdom, Germany, South Korea, and Taiwan. Aco's products are primarily based on measurements in living environments and cover a wide range from various devices to buildings and medical applications, playing a vital role in quality control, maintenance, management, and research and development across all sectors. In particular, in recent years, we have expanded our achievements in the automotive industry through the enhancement of system products that include peripherals and software, accurately capturing customer needs from a single product to entire systems, aiming for mutual growth and development. Furthermore, in addition to contributing to the industrial sector, we will continue to challenge ourselves to develop new technologies to improve people's lives and enhance the environment.
