Products/Services for PVDF Needle Hydrophones
-
Hydrophones - (55 companies)Hydrophones are underwater acoustic sensors, which most commonly use piezoelectric technology. They can be used singly or in arrays that can contain dozens or hundreds of individual units. They are used in marine geological and biological research...Integral Pre-amplifierArray -
Needle Valves - (567 companies)Needle valves are small valves used for flow control in liquid or gas services. The fine threading of the stem and the large seat area allow for precise resistance to flow. Needle valves have a slender, tapered point at the end of the valve stem... -
Syringes and Needles - (218 companies)Syringes utilize a cylinder and plunger for precise delivery of liquids or gases in analytical, medical, pharmaceutical or biotechnology applications. Many times needles are included with the syringe. Syringes utilize a cylinder and plunger... -
Needle Roller Bearings - (287 companies)Needle roller bearings are a type of radial roller bearing with rollers whose length are at least four times their diameter. These bearings are valued for their high load capacity and low sectional height. Needle roller bearings utilize small... -
Precision Dispensing Needle Valves - (53 companies)Precision dispensing needle valves are designed to provide precise fluid dispensing depending on applications. The dispensed output can be in the form of a bead, dot or fill. The valve dispenses fluid when the activator (for example, air) acts... -
Semiconductor Wire and Wedge Bonders - (19 companies)...wands, die attach collets, die shear tools, ejector pins or push up needles, flip chip tools, spanking tools, push-up needles (pepperpots) and tab tools (microBGA, waffle).
-
Bearing Retainers and Cages - (19 companies)Bearing retainers or bearing cages are used in rotary and linear bearings to separate and maintain a specified distance between rolling elements, whether they are balls, needle rollers, or rollers. Bearing retainers, also referred to as bearing...
-
Plastic Valves - (322 companies)It is prone to stress cracking and has poor resistance to ultraviolet (UV) light. Polyproylene (PP) is similar to PVC, but can be used in exposed applications because of its resistance to UV, weathering and ozone. Polyvinylidene fluroride (PVDF) has...
-
Thrust Bearings - (374 companies)Thrust bearings are comprised of components which support axial loads, and little to no radial loads. Types include tapered, cylindrical, spherical, and needle roller thrust bearings, thrust ball bearings, fluid-film thrust bearings, and magnetic...
-
Pipe Fusion Machines - (19 companies)Pipe fusion machines are used to fuse plastic pipe and fittings. These machines are used to prepare and join thermoplastic polymer materials such as polypropylene, polyethylene, PVDF and ECTFE pipe. Pipe fusion machines fuse plastic pipe and pipe...
Product News
-
Plast-O-Matic Valves, Inc.
PVDF red piping systems Red Kynar (R) PVDF. PVDF red piping systems have been successfully used in outdoor applications for over 25 years. It provides the same pressure/temperature range and chemical resistance of traditional natural Kynar PVDF with no pigmentation. Natural unpigmented PVDF is unaffected by ultraviolet light (UV). But it does permit UV to pass through it and affect the media within the pipeline. Since UV passes through natural Kynar PVDF, when chlorine or peroxide chemistries are present, the UV can... (read more)Browse Industrial Valves Datasheets for Plast-O-Matic Valves, Inc. -
Port Plastics, Inc.
Advantages of Flametec® Kytec® – PVDF Flametec (R) Kytec (R) - PVDF. Flametec (R) Kytec (R) - PVDF material is an ultra-pure fluoropolymer product suited for harsh chemical, thermal, and ultraviolet environments. Kytec (R) PVDF is resistant to most acids, bases, and organic solvents. Typically used in semiconductor, petrochemical, and nuclear industries. Advantages of Flametec (R) Kytec (R) - PVDF: Ultra-pure polymer. Stability to harsh thermal, chemical, UV environments. Good mechanical strength, stiffness, and creep resistance... (read more)Browse Polymers and Plastic Resins Datasheets for Port Plastics, Inc. -
Wilcoxon Sensing Technologies
H23 Next Generation Hydrophones H23 series hydrophones are small, versatile, self-amplified, and shielded for a variety of underwater acoustic measurements for Test & Measurement and military applications. Wide, flat frequency response for underwater sound measurements over the frequency range 5 Hz to 150 kHz. Ultra low noise internal amplifier eliminates triboelectric cable noise, connector contamination, and an expensive inline amplifier. Underwater operation to 680 meters, 2230 feet, 1000 PSI. Lab and ocean applications... (read more)Browse Hydrophones Datasheets for Wilcoxon Sensing Technologies -
Pacific International Bearing, Inc.
Needle Roller Bearings Needle roller bearings are used when the load carrying capacity or accuracy of drawn cup needle roller bearings with open ends is no longer sufficient and the high load capacity of cylindrical roller bearings is not yet required. Needle roller bearings place lower requirements on the dimensional accuracy, geometrical accuracy and hardness of the adjacent construction than needle roller bearings with open ends and with closed end. The standard bearings are: needle roller bearings with ribs... (read more)Browse Needle Roller Bearings Datasheets for Pacific International Bearing, Inc. -
Hartford Technologies, Inc.
Needle Bearing Retainers For more than two decades, Hartford Technologies has been a preferred supplier of needle-bearing retainers to leading OEMs and Tier 1s, for both standard and custom products. Hartford Technologies manufactures a wide variety of needle-bearing retainers for custom-bearing assemblies. A needle bearing uses needle rollers, rather than balls, as its rolling elements. Our retainers can be manufactured from chrome steel or virtually any type of stainless steel for corrosive atmospheres or severe... (read more) -
Changzhou Mouette Machinery Co., Ltd.
Combination Needle Roller with a Cover Combined needle roller / thrust ball bearing. These bearings consist of a radial needle roller bearing combined with a thrust ball bearing. Together they can accommodate both radial loads and axial loads in one direction. In addition, they can operate at relatively high speeds. Their low cross-sectional height makes the bearings particularly suitable for applications where other types of locating bearing arrangements occupy too much space. Accommodate radial and axial loads in one direction... (read more) -
Hartford Technologies, Inc.
Precision Needle Rollers Needle Rollers. Whether you need 100,000 pieces or 100 million, Hartford Technologies ' Precision Needle Rollers can be made to your most exacting requirements. Needle Rollers are used in bearing applications for automotive, industrial, agricultural, and aerospace applications. Needle Rollers are also used as internal bearings in cam followers. Size Ranges. Diameter: .031 " to 1.000 " (.787mm to 25.4mm). Length: .125 " to 3.000 " (3.17mm to 76.2mm). Standard Materials. Chrome steel. Carbon... (read more)Browse Needle Roller Bearings Datasheets for Hartford Technologies, Inc. -
Accurate Bushing Company, Inc.
Custom Needle Roller Bearings Accurate Bushing Company, Inc. manufactures custom needle roller bearings to match your specifications. Smith Bearing (R) has a fully-integrated manufacturing facility capable of producing high-precision needle roller bearings for both the Aerospace and Industrial market. Our computerized (CNC) grinding and precision machining centers, considered to be the most advanced in the industry are capable of manufacturing a wide range of products to exacting tolerances in order to meet the needs of our... (read more) -
Beswick Engineering Co., Inc.
10-32 threaded Needle Valve The needle valve is an adjustable orifice which can be used to control flow rates, mini-cylinders, nozzles, timing circuits, filling heads, bleed vents, and in many other applications. The adjustable flow remains stable even during temperature fluctuations as the needle and valve seat are both manufactured from stainless steel. The NV needle valve is rated for a maximum inlet pressure of 500 psig (34.47 bar). The metal to metal seal provides positive shut-off down to 25 in Hg. (vacuum... (read more)Browse Needle Valves Datasheets for Beswick Engineering Co., Inc. -
Pacific International Bearing, Inc.
Drawn Cup Needle Roller Bearings Pacific International Bearing Sales is an Authorized Distributor for INA and IKO brands and offers other brands such as SKF and the combined brands of Torrington/Timken/Koyo which is now the JTEKT brand. These leading brands of INA, IKO, JTEKT and SKF are equal in quality and are responsible for the majority of needle bearings manufactured worldwide. The Torrington company invented needle roller bearings and created a part numbering system many companies use to this day. (read more)Browse Needle Roller Bearings Datasheets for Pacific International Bearing, Inc.
More Information
Indicates content that may require registration and/or purchase.
-
Characterization of a polymer film optical fiber hydrophone for use in the range 1 to 20 MHz: A comparison with PVDF needle and membrane hydrophones
Correspond- ing waveforms were also measured using the PVDF needle hydrophones ; measurements of the shocked toneburst field (Section 111) by the optical fiber hydrophone and a 0.075- mm PVDF needle hydrophone are shown in Fig. 4, for example.
-
Fabry Perot polymer film fibre-optic hydrophones and arrays
for ultrasound field characterisation
35 . alternative to mechanically scanning a PVDF needle hydrophone for mapping the output of medical ultrasound transducers and arrays. .
-
Springer Handbook of Medical Technology
PVDF needle hydrophones are made of a PVDF- coated steel needle.
-
Biomedical Applications of Electroactive Polymer Actuators Complete Document
The PVDF needle hydrophone design was based on the similarly constructed piezoelectric ceramic hydrophone, an example of which is shown in Figure 19.1.
-
Time-delay spectrometry measurement of magnitude and phase of hydrophone response
… TDS- based measurements of hydrophone phase responses agreed well with calculations based on the minimum-phase model, with rms differences of 1.76° (PVDF spot-poled membrane hydrophone), 3.10° (PVDF capsule hydrophone), 3.43° ( PVDF needle hydrophone ), and 3.36° (ceramic …
-
The impact of piezoelectric PVDF on medical ultrasound exposure measurements, standards, and regulations
Descriptions of PVDF membrane and PVDF needle hydrophones are provided together with typical per- formance characteristics.
-
A novel method for determining calibration and behavior of PVDF ultrasonic hydrophone probes in the frequency range up to 100 MHz
The Precision Acoustics 9-µ thick PVDF needle hy- drophone assembly, with an active diameter of 75 µ and submersible preamplifier, was manufactured in 1997.
-
The fiber optic probe hydrophone
Figure 4: Comparison of shock wave measurements under identical parameters done with the fiber op- tic, the PVDF-membrane and a commercial PVDF needle hydrophone .
-
29th International Symposium on Shock Waves 2
PVDF needle hy- drophone with 0.5 mm sensitive diameter and 35 ns rise time (Dr. M ¨uller Instru- ments Inc.) was used for pressure measurements.
