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tympanum, bioacoustic sensed pressure waves.

See Also: Ultrasound, Audio, Infrasound, Reverberation, Acoustic, Sound Calibration


Showing recent results 541 - 555 of 565 products found.

  • Surface DC Voltmeter

    SVM2 - Alpha Lab, Inc.

    The SVM2 has high sensitivity (resolution), and can detect even a 1 volt charge anywhere within its full range of +29,999 to -29,999 volts. Thus it is easy to measure whether a given process is increasing or decreasing the static electricity present, even if the increase or decrease is by a tiny fraction. The meter reads the actual static signal, but it also captures and stores the highest positive and highest negative signals that were experienced since the last time that the "Reset" button was pressed. These peak + and can be displayed at any later time. The peak function has a "window" time of 0.005 seconds (which is much faster than the display) so even very quick peaks are captured and stored. There is also a user-settable alarm. The alarm will sound if the signal (whether + or -) ever exceeds the value set by the user for at least 0.005 seconds. The alarm can be reset or muted at any time.

  • Bench Power Supply, Single, Adjustable, Fixed, 1 Output, 13.3 V, 14.5 V, 15 A

    72-8110 - Tenma

    The 72-8110 is a compact switch mode Power Supply features a very compact footprint that makes it an ideal match for portable communications equipment. Its 50% duty cycle surge rating is comes in handy in demanding transmitting situations. It is also perfect for two-way radio (including HF) and audio equipment including auto sound and multimedia systems. This fixed voltage switch mode power supply is designed with high RFI stability and is especially suitable for two-way radio and communications equipment. Constant current circuitry is used for overload, short-circuit and over-temperature protection. Output current and voltage drop to a safe level when any fault occurs. This power supply also has over voltage protection to prevent connected equipment from damage.

  • Digital AC/DC Auto-Ranging Clamp Meter

    PCMT20 - Pyle Audio Inc.

    Measures AC and DCMax. Resolution to Current Measurement: 0.1uALCD Display with BacklightData Hold, Zero Function, Auto Power OffLower Battery Indiactor0.9' (23mm) Jaw SizeDC Voltage: Range: 0-600 V; Accuracy: +/- 0.5%AC Voltage: Range: 0-600 V; Accuracy: +/- 1.5%AC Current: Range: 0-400 A; Accuracy: +/- 3.0%Resistance: Range: 0-40 M; Accuracy: +/- 3.0%Temperature: Range: 1000 C / 1832 F; Accuracy: +/- 3.0%Capacitance: Range: 100 uF; Accuracy: +/- 2.5%Frequency: Range: 150 kHz; Accuracy: +/- 1.2%Continuity: Buzzer Sounds at 100Diode: Test Current 0.3mA; Open Circuit Voltage 1.5VBatteries: 2 x AAA IncludedAccessories Included: Black Bag, Test Leads, Type K Temperature ProbeDimensions: 8.07' H x 2.36' W x 1.18' DWeight: 7.94 ozSold as : Unit

  • Digital Audio Analyzers

    WinTek s.a.s.

    As regards the activity carried out by those in the call center it is important to note that much of the noise under which a trader is directly applied to the outer ear (acoustic signal from the headphone) and not, as usually happens, is only widespread environmental noise . For this reason they are different measurement methodologies normalized been identified that provide for a correction of the measured noise spectrum waves bring the same extent equivalent to the diffuse sound field in the vicinity of the attache head. The measurement techniques normalized are two: the first requires the measuring the acoustic signal with a probe placed in the operator''s ear canal (MIRE technique) but attention difficult to enforce; the second requires the measurement of an acoustic signal to the eardrum equivalent to that to which the operator is subject by the use of a system similar to those used in headphones, powered by an equivalent electrical signal and applied to a normalized anthropometric mannequin.

  • Gateway

    LoRa - Tzone Digital Technolgy Co., Ltd

    The LoRa Gateway is an ultra-long-range wireless data acquisition gateway dedicated to receiving our temperature and humidity TAG. Support GPRS (850,900,1800,1900MHz), RS485, MODBUS-RTU and other communication interface. LoRa Gateway uses high-performance 32-bit industrial processor and industrial-grade wireless module, with high reliability, stability and data security. When detecting temperature and humidity anomalies,it can support the local sound and light alarm, SMS alarm, GPRS alarm and other alarm methods.Different from the previous ASK, FSK, using a special spread spectrum modulation technology greatly improved the sensitivity of the received, up to 157db link budget so that the wireless communication distance has improved significantly, with the TAG up to 5km in open area.

  • Production Line Acoustic Test Chamber

    PLATC - Listen Inc

    The Production Line Acoustic Test Chamber from GRAS is designed for quick and qualified acoustic test of cell phones, tablet PCs, Bluetooth speaker systems etc., including frequency response, THD, Rub & Buzz and microphone test using optional sound source. The chamber has a number of connections for injecting test and control signals to the test object (DUT).Benefits include:Repeatable testing and reliable dataEasy open/close for quick and safe change of DUTFlexible test jig for easy adjustment to new DUTFlexible microphone mounting for both front/backside speakers as well as edge-mounted speakersHigh quality, high sensitive 1/4” CCP measurementmicrophone included (G.R.A.S. 46BL)Individually calibrated frequency response** Compared to reference measurement in anechoic room

  • Non-Contact H.V. Detector

    278 HP - Standard Electric Works Co., Ltd

    ● Protection class : IP65.● 3 LED indicators in a circle for easier viewing in any directions (360° LED indication).● 8 voltage settings : 240V, 2kV, 6kV, 11kV, 22kV, 33kV, 132kV, 275kV.● High bright LED visual indication.● With the longer shelter to make the 3 LED indicators brighter under the sun.● Sound indication.● The maximum voltage setting can be 500kV .● Self-test function.● Power source : 1.5V "C" type battery × 3.● High impact nylon casing.● Non-contact work by proximity.● Compatible with most hot sticks.● Lightweight, robust & compact. ● Suitable for indoor and outdoor use.● Easy access to batteries.● Special ranges are available upon request. ● The maximum detection range can be 500kV.

  • Non-Contact H.V. Detector

    300 HP - Standard Electric Works Co., Ltd

    ● Protection class : IP66.● 3 LED indicators in a circle for easier viewing in any directions (360° LED indication).● 8 voltage settings : 240V, 2kV, 6kV, 11kV, 22kV, 33kV, 132kV, 275kV.● High bright LED visual indication.● With the longer shelter to make the 3 LED indicators brighter under the sun.● Sound indication.● The maximum voltage setting can be 500kV .● Self-test function.● Power source : 1.5V "C" type battery × 3.● High impact nylon casing.● Non-contact work by proximity.● Compatible with most hot sticks.● Lightweight, robust & compact. ● Suitable for indoor and outdoor use.● Easy access to batteries.● Special ranges are available upon request. ● The maximum detection range can be 500kV.

  • Non-Contact Voltage Detector

    273 HP - Standard Electric Works Co., Ltd

    ● 2 ranges for selection : LOW 50V~1.5kV                                             HIGH 1.5kV~132kV ● There is no power consumption in off mode : 0uA● Nice mechanical slide switch for function selection :  HIGH / OFF / LOW    ● The power consumption in low voltage detection mode : Less than 20mA● The power consumption in high voltage detection mode : Less than 20mA● Bright LED and audible alarm sound when voltage is present.● Lightweight, robust and compact.● Efficient and easy to use● Users have to use the Hot Stick when test high  voltages between 1.5kV~132kV.● SEW provides nice optional accessories of  Hot Sticks HS-175 and HS-120 for high voltage detection.● Optional accessories :   HS-175 Telescopic hot stick (triangle-type)   HS-120 Hot stick

  • Audio Signal Generator

    CRY5520 - Hangzhou JiGao Electroacoustical Science and Technology Co.,Ltd

    CRY5520 audio frequency sweep signal generator, adopts single chip microcomputer to control frequency sweep, digital and analog combination, stable performance. It has extremely low distortion, sine wave output, small distortion, good stability, and the frequency range covers the entire audio frequency domain . It is especially suitable for pure audio sound inspection of speakers and headphones. It can work in two modes of logarithmic frequency sweep and manual frequency modulation. The starting point, end point and frequency sweeping time of the frequency sweep can be set arbitrarily. The manual frequency modulation can be divided into coarse and fine adjustment, which can quickly and accurately adjust the frequency.128 × 64 dot matrix liquid crystal display is used to display frequency and voltage values ​​simultaneously, with synchronous output.

  • Split Type Ultrasonic Level Gauge

    HR9100D - HighReach Measuring & Controlling System Co.,Ltd

    1. Stable and reliable / We select high-quality modules and key components from the power supply part to select high-stability and reliable devices, which can directly initiate imported instruments. 2, patented technology / one ring patented sound wave intelligent technology software can Intelligent outgoing analysis without any debugging and other special steps, this technology has the function of dynamic thinking, dynamic analysis 3, high precision / sound wave intelligence owned by our company The patented technology greatly improves the accuracy of the ultrasonic level gauge, the Liquid level accuracy reaches ±0.2%, can resist various interference wavesThe instrument is a non-contact instrument, not Direct contact with liquid, so the failure rate is low. The instrument provides a variety of installation methods, users can use this . The Instrument Manual Calibrate to 5. The Protection of The Level of Multiple Protection / IP67 & Instrument Reaches; INPUT and Output Lines All have have Lightning Protection and Short Circuit Protection.

  • Ultrasonic Liquid Level Difference Meter

    HR9100L - HighReach Measuring & Controlling System Co.,Ltd

    1. Stable and reliable / We select high-quality modules and key components from the power supply part to select high-stability and reliable devices, which can directly initiate imported instruments. 2, patented technology / one ring patented sound wave intelligent technology software can Carry out intelligent echo analysis without any debugging and other special steps, this technology has the function of dynamic thinking, dynamic analysis 3, high precision / sound wave intelligence owned by our company The patented technology makes the accuracy of TS-CJ ultrasonic level gauge greatly Improved, the liquid level precision reaches 0.3%, can resist various interference wavesThe instrument is a non-contact type. The meter does not directly contact the liquid, so the fault rate is lower. The meter provides a variety of installation methods, and The user can use this manual to calibrate the meter. 5. The protection level of multiple protection/instrument reaches IP65; all output and input lines have lightning protection and short circuit protection.

  • Single Channel Instrument for General Acoustic / Vibration Measurements

    SVAN 979 - SVANTEK Sp. z o.o.

    SVAN 979 is the most advanced and powerful single channel instrument for general acoustic and vibration measurements ever made. The list of the instrument outstanding features and functionalities includes:- high accuracy sound and vibration measurements- most powerful frequency analysis package- time-domain (WAV) and Audio Events recording to Micro SD card- very high dynamic measurement range- extremely flat frequency response (digitally compensated)- extremely flexible set of interfaces (USB, Bluetooth, IrDA, RS232 and more)- USB Host port providing very flexible functional extensions capabilities- firmware ready for GPRS and WLAN communication (USB Host port)- GPS time synchronisation

  • Anti Sleep Driving Alarm

    MA1304CIS-FD - FIRS Technologies(Shenzhen) Co.,Ltd.

    1. With its working voltage ranging from 8 to 36V, the anti sleep driving alarm is applicable in a variety of environments. 2. All its parameters are set by the SMS via wireless network. And the embedded 3G model is powerful supporter of data transmission. 3. This product is activated when the vehicle speed and the fatigue degree of the driver reach certain levels. With the driving time exceeding 4 hours, it will give a sound to remind the driver to have a rest to disperse potential dangers. And local audio and visual alarm will send photos and alarm information to back-end management system to analyze. Furthermore, intelligent analysis of recording documents can be shown via the player produced by our own company and the result will be stored in the server or transmitted to the third-party via middleware.4. On the basis of the DSP platform, our anti sleep driving alarm is equipped with 4 CH video input with the combination of 1 CH intelligent function with 1CH monitoring and 1CH intelligent function 3CH. It also supports 1CH audio output and 2 CH OSD video output. 5. The hardware interfaces supported by our product include RS232/485, RJ45, USB and SD. 6. Mobile applications are available in optimized vehicle environments. 7. Standard SDK interface protocol is provided for the easy integration of other vehicle equipment.

  • Combo Tester

    SL-032 - KING GLORY TECHNOLGY DONGGUAN COMPANY LTD

    SL-032 tester can be touchable and used as 3 status, which is ideal for fast and multiple test for ESD grounding device. This tester shall be used as one of calibration instruments according to the calibration standard inclusive of daily inspection of technical requirement and program described as 6.1.3.2 in ANSI ESD S20.20. Combo tester is designed for unique dual-testing circuit, which not only improve test speed, but also no single wrist strip/foot panel tester required. Furthermore, SL-032 configures with 750KΩ-10MΩ circuit used to test wrist strip and 750KΩ-100MΩ circuit used to test shoe cover, SL-032 tester is ideal for testing of wrist strip and shoe cover. Test parameter has been preset in factory, however it can be used only after one needed by you coordinates with test parameter. It is easy to operate, green indicator stands for normal operation status, red one and sound for higher or lower resistance. Accessories are: one 9V battery, a pedal, one piece of grounding cable, a stand, 3 pieces of screw and 3 pieces of fixed activities stand button .