丹麥Teledyne Reson水聽器，TC4013提供1Hz至170kHz的可用頻率范圍，并且相對(duì)于其尺寸具有高靈敏度。此外，它在高達(dá)高頻的水平和垂直平面上提供了均勻的全向靈敏度。TC4013是一款在寬頻率范圍內(nèi)進(jìn)行聲音測(cè)量和校準(zhǔn)的優(yōu)秀傳感器。它也可以用作全向參考投影儀。

TC4013的整體特性使其非常適用于實(shí)驗(yàn)室和工業(yè)用途。

NBR是指丁腈橡膠。NBR橡膠首先耐海水和淡水，但也耐油。它對(duì)汽油的耐受性有限，對(duì)大多數(shù)酸的耐受性也有限，并且會(huì)被堿、強(qiáng)酸、鹵代烴（三氯乙烯）、硝基烴（硝基苯、苯胺）、磷酸酯液壓油、酮類（MEK、丙酮）、區(qū)域和汽車制動(dòng)液所破壞。電纜長(zhǎng)度：標(biāo)準(zhǔn)長(zhǎng)度6m?？筛鶕?jù)要求提供可選電纜長(zhǎng)度

The TC4013 offers a usable frequency range of 1Hz to 170kHz and a high sensitivity relative to its size. It furthermore provides uniform omnidirectional sensitivities in both horizontal and vertical planes up to high frequencies. The TC4013 is an excellent transducer for making absolute sound measurements and calibrations within a broad frequency range. It can also be applied as an omnidirectional reference projector. 

The overall characteristics make TC4013 extremely applicable for laboratory as well as industrial uses.

NBR NBR means Nitrile Rubber The NBR rubber is first of all resistant to sea and fresh water but also resistant to oil. It is limited resistant to petrol, limited resistant to most acids and will be destroyed by base, strong acids, halogenated hydrocarbons (carbon tetrachloride, trichlo roethylene), nitro hydrocarbons (nitrobenzene, aniline), phos phate ester hydraulic fluids, Ketones (MEK, acetone), Ozone and automotive brake fluid. Cable length: Standard length 6m. Optional cable lengths available on request

TECHNICAL SPECIFICATIONS：

 Usable frequency range: 1Hz to 170kHz 

 Receiving sensitivity: -211dB ±3dB re 1V/µPa 

 Transmitting sensitivity: 130dB ±3dB re 1µPa/V at 1m at 100kHz 

 Horizontal directivity pattern: Omnidirectional ±2dB at 100kHz 

 Vertical directivity pattern: 270° ±3dB at 100kHz 

 Nominal capacitance: 3.4nF Operating depth: 700m 

 Survival depth: 1000m 

 Operating temperature range: -2°C to +80°C 

 Storage temperature range: -40°C to +80°C 

 Weight (in air): 75g Encapsulating material: Special formulated