(Switches)
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With the advent of the Reed Switch, developed by Bell Labs in the 1940s, it was convenient to measure its operate characteristics using the units of ampere turns. Since the Reed Switch is cylindrical... (View Full Article)
(Level Sensing)
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A typical unit can accumulate up to 15 gallons (60 liters) of water in a single day. With this much water being produced, care must be taken with the reservoirs to prevent water overflow. Reed sensors... (View Full Article)
(Level Sensing)
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High temperature liquid environments have been around for a long time without any accurate, easy method of measuring their liquid levels. MEDER has solved this problem with their hermetically sealed... (View Full Article)
(Proximity or Presence Sensing)
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Liquid systems all have their own specialty aspects and their own peculiarities. The liquids vary in density and viscosity (flow level) in going from water with a centi-poise of 1 to liquid epoxies... (View Full Article)
(Level Sensing)
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When applying one's foot to the brake pedal, it is taken for granted that the braking mechanism will begin to slow or stop the vehicle. A hermetically sealed reed switch plays a key reliability role... (View Full Article)
(Level Sensing)
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Designing a sensing system for under the hood of a vehicle presents difficult requirements. The sensor must operate at extreme temperatures that are as low as -40°C and as high as 125°C.... (View Full Article)
(Proximity or Presence Sensing)
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When depressing the brake pedal, the auto's hydraulics engage and slow or stop the vehicle. In addition, two other functions can also occur, one of which is critical to the operation of the vehicle-... (View Full Article)
(Proximity or Presence Sensing)
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When an automobile is completed at the factory, it is ready to be driven. However, the vehicle may sit in a completion lot for several days or weeks awaiting transportation. The vehicle is then... (View Full Article)
(Level Sensing)
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Design engineers today look for procuring a complete solution. If they can't find this, they look for its component parts. This application refers to the development of a bilge pump on a boat, which... (View Full Article)
(Relays and Relay Accessories)
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Testing these cable harnesses with high voltage from each wire to all other wires has been a proven approach to eliminate potential cable shorts. And applying high current through the wires has... (View Full Article)
(Proximity or Presence Sensing)
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The most costly items of an automobile are under the hood of the car. Thieves, once the hood of the car is open, can unfasten the engine, battery, etc. very quickly. Having a sensor that is tied into... (View Full Article)
(Proximity or Presence Sensing)
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Large truck containers and/or shipping, freight and cargo containers usually contain valuable equipment worth millions of dollars/euros. So they can attract interest of unsavory characters wanting... (View Full Article)
(Proximity or Presence Sensing)
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Convertible roof position whether open or closed require a magnetic proximity sensor to turn off the roof motor. The reed sensor can reliably sense both end positions and activate or deactivate the... (View Full Article)
(Level Sensing)
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Refrigerated trucks abound all over our roadways worldwide, many carrying 10s of thousands of dollars, Euros, etc. in fragile goods that must be kept cool, no matter what the outside temperature.... (View Full Article)
(Relays and Relay Accessories)
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Transducers like thermocouples, output very small voltages, and many times are located in remote areas. Reed Relay's with only 0.2 pico0farads across the open contacts offer that ability to... (View Full Article)
(Proximity or Presence Sensing)
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Normally reed sensors require a reed sensor and a magnet to carry out the sensing function. However, almost all emergency doors must be made of steel or a steel alloy. This steel interferes with the... (View Full Article)
(Proximity or Presence Sensing)
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For years manufactures of electric toothbrushes have used mechanical slide switches to turn on and off the power to the toothbrush. The mechanical slide switches are subject to very harsh environments... (View Full Article)
(RF, Microwave, and Wireless Components)
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Electrometers are used to measure ultra low currents at the sub-pico amp level. Reed relays represent the only technology that can successful switch and pass these small signals without losing signal... (View Full Article)
(Proximity or Presence Sensing)
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Knob controls on stoves have now become a thing of the past. First seen on flameless ceran stoves, Reed Sensors are used to control the various power settings for each burner. The Reed Sensor... (View Full Article)
(Level Sensing)
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All trucks and automobiles currently utilizing internal combustion engines have fuel tanks. To the driver of the fueled motor vehicle, one of the most important instruments on his front panel is his... (View Full Article)
(Relays and Relay Accessories)
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Functional PCB testers are in some cases, up to 20 layers thick, requiring 1000s of test points for functional verification. Because of size restrictions, isolation, relatively fast acting and good... (View Full Article)
(Proximity or Presence Sensing)
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More and more electronic control is being used in automobiles and trucks in "drive by wire" implementations. For improved functionality and ease of control, the transmission shifter arm movement in... (View Full Article)
(Proximity or Presence Sensing)
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Most major food chains and retail stores process purchased items through their payment stations using electronic automatic barcode scanners. Most of these barcode scanners are equipped with a... (View Full Article)
(Relays and Relay Accessories)
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Electronics and electronic systems, the need exists to be able to make voltage and current measurements covering several orders of magnitude, from nano-volts to kilovolts and from fempto-amps to amps.... (View Full Article)
(RF, Microwave, and Wireless Components)
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The reed relay being hermetically sealed and then encapsulated in a rugged over-molded epoxy, can reliably transmit or receive radio frequencies between 3 MHz to 30 MHz.... (View Full Article)
(RF, Microwave, and Wireless Components)
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RF switches must be employed having the ability to carry the wide range of frequencies without adding any distortion when monitoring worldwide communications via RF receivers.... (View Full Article)
(Relays and Relay Accessories)
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Approximately 95% of new, surgically equipped operating rooms use electronic scalpels. These electronic scalpels cut and instantly cauterize the area stopping any bleeding. This greatly helps doctors... (View Full Article)
(Relays and Relay Accessories)
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When the defibrillator is activated, the paddles are placed on the person's chest, and then a high voltage/current pulse is applied across the heart with the intent to shock the heart back into... (View Full Article)
(Proximity or Presence Sensing)
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There are a large number of applications requiring the detection of end limit position, where electric shock can be a real concern. Hospital beds, for example, need end position limits when adjusting... (View Full Article)
(Level Sensing)
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An essential part of a hot tub is its heating system. There are very high wattage heaters that are designed into hot tubs for quick warm up. If for some reason the water is not flowing and the heaters... (View Full Article)
(Proximity or Presence Sensing)
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Finally there is a reliable way to precisely detect the end limit positions of pistons and cylinders, particularly when that detection is critical to the operation and/or can result in a disaster if... (View Full Article)
(Switches)
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Many facilities, particularly manufacturing environments where dust particles or explosive atmospheres may exist, represent real challenges when it comes to electronic circuitry and switching... (View Full Article)
(Proximity or Presence Sensing)
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Often these measuring devices used a walking device having a wheel that translates circular motion into a linear distance. These devices used a mechanical means to establish the distance. These... (View Full Article)
(RF, Microwave, and Wireless Components)
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There are many types of modular instrumentation platforms: VXI, PXI, PACs, Labview, AXie, USB, GPIB, etc. They all offer several different plug-in boards that carry out singular and/or multiple... (View Full Article)
(Level Sensing)
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There are several laboratory fluid systems that required fluid level monitoring to help control very elaborate equipment processes. This new float sensor has four sensing positions, three of which are... (View Full Article)
(RF, Microwave, and Wireless Components)
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Within the network analyzer's circuitry, the need to attenuate RF signals is necessary; and high frequency reed relays carry out the task with billions of reliable operations.... (View Full Article)
(Proximity or Presence Sensing)
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In the past, disconnecting a telephone connection required the placement of the handset on the receiver. This placement activated a mechanical switch which created the electrical disconnect. The... (View Full Article)
(RF, Microwave, and Wireless Components)
From this Article:
Fast digital oscilloscopes have different time ranges to evaluate both slower signals as well as faster pulses. Semiconductor switches offer too much leakage and interaction between ranges, where... (View Full Article)
(Relays and Relay Accessories)
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When testing discrete semiconductors, particularly power devices (Fets, mosfets, etc), high current testing is a very important factor. The high currents allow the designer to determine the integrity... (View Full Article)
(Proximity or Presence Sensing)
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Appliances, particularly refrigerators and freezers, must have their doors closed at all times. If the door is left open for any length of time the compartments will warm up and the food contained... (View Full Article)
(RF, Microwave, and Wireless Components)
From this Article:
Since attenuators are typically used to calibrate RF signal strength, the switching devices must be very good at handling RF so they don't end up attenuating the signal strength themselves. Recent new... (View Full Article)
(RF, Microwave, and Wireless Components)
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After the operation, but just before closure of the wound, and electronic transmitter external to the body is turned on and using a matrix of relays, scans for these items.... (View Full Article)
(RF, Microwave, and Wireless Components)
From this Article:
Performance boards are used in conjunction with integrated circuits to directly connect the actual test functions from the test system to the integrated circuit under test. RF reed relays are... (View Full Article)
(Proximity or Presence Sensing)
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As we all know, seat belts are now used by all airlines and in almost all automotive vehicles with the possibility that they may become mandatory for buses and trains as well. In recent years the Reed... (View Full Article)
(Level Sensing)
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Most households and businesses have meters reading and recording the volume of water used, the volume of gas used and/or the amount of electricity being used. Most of these meters used reed sensors to... (View Full Article)
(RF, Microwave, and Wireless Components)
From this Article:
Because there are so many gates to be tested, test speed is essential. RF reed relays are specially designed to switch and pass fast digital pulses in a 50 ohm impedance environment while offering... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
There are a multitude of applications that require the measurement of the volume of water. Water filters must measure the amount of water passing through them in order to know when to change the... (View Full Article)
(Switches)
From this Article:
This article offers a description of some of the basic Reed Switch electrical parameters and key terms.... (View Full Article)
(RF, Microwave, and Wireless Components)
From this Article:
Manufacturers of electronic components for military and aerospace projects and other demanding applications rely on Standex Electronics. Whether used on satellites high above the earth, or drilling... (View Full Article)
(Relays and Relay Accessories)
From this Article:
For years engineers had thought the best way to switch high frequencies and very short fast digital pulses was to use special semiconductors designed to handle the high frequencies - namely gallium... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
In and around the gas tank and its filling lid is consider a highly explosive area. Anything that can possible cause a spark could potentially ignite the fuel. Use of an electromechanical sensor to... (View Full Article)
(Relays and Relay Accessories)
From this Article:
Many users of Reed Switches for sensor and reed relay applications try to make the sensors and or relays themselves internally. Often however, they do not observe some basic precautions and preventive... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
Many households and businesses have now been going over to the use of programmable shutters/blinds/shades where their exact position can be programmed and later executed to that position with the use... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
Card readers have come under increased use in hotels and a host of other card detection activities. With the dramatic increase in use, the quality and reliability have become big factors in shaping... (View Full Article)
(Switches)
From this Article:
Using Reed Switches in a sensing environment, one generally uses a magnet for actuation. It is important to understand this interaction clearly for proper sensor functioning. Sensors may operate in a... (View Full Article)
(Switches)
From this Article:
The life of a Reed Switch can vary widely depending on the exact switching circumstances. Over the years, many improvements have been made to the Reed Switch, which have played a major role in... (View Full Article)
(Switches)
From this Article:
The Reed Switch contact rating is dependent on the switch size, gap size or ampere turn rating, contact material and atmosphere within the glass capsule. To receive the maximum life for a given load... (View Full Article)
(Magnets)
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This document contains a table showing magnetization for various applications and arrangements.... (View Full Article)
(Magnets)
From this Article:
Magnets are available in multiple specifications on the market. Almost all dimensions and geometries can be realised. To activate the reed switch a magnet (magnet field) is needed. The different... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
Power windows have been improving their performance over the years and now use Reed Sensors to control the motors as they reach their end limits. Also, if an object impedes the window's progress... (View Full Article)
(Relays and Relay Accessories)
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Reed Relays are susceptible to magnetic effects which may degrade performance under certain conditions. This report presents a practical approach to reducing magnetic effects among and between Reed... (View Full Article)
(Relays and Relay Accessories)
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Reed Relay in Comparison with Solid-State and Mechanical Relay... (View Full Article)
(Relays and Relay Accessories)
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As electronic components continue their downward size spiral, their capabilities are ever increasing. Accompanying this, chip line widths are narrower than ever giving rise to unwanted small voltage... (View Full Article)
(Relays and Relay Accessories)
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Chip makers use new performance boards for every new chip they develop. Since most integrated circuit/chip makers generally have large factories devoted to the testing of their chips.... (View Full Article)
(Relays and Relay Accessories)
From this Article:
Since their introduction several years ago, the Hall effect sensor has captured the imagination of design engineers. Generally, it was thought that if it's in solid state that it's a more reliable... (View Full Article)
(Switches)
From this Article:
Reading the previous sections on the Reed Switch basics, key parameters, and operational characteristics before delving into this section will give one a better background and more insight into... (View Full Article)
(Switches)
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A comparison chart by specification.... (View Full Article)
(Switches)
From this Article:
The Reed Switch was first invented by Bell Labs in the late 1930s. However, it was not until the 1940s when it began to find application widely as a sensor and a Reed Relay. Here it was used in an... (View Full Article)
(Switches)
From this Article:
All of our Reed Switches are 100 % tested in our Standard Test Coils and measured in ampere-turns (AT). Simply stated, we have coils wound in a specific coil form, with a given number of turns. We... (View Full Article)
(RF, Microwave, and Wireless Components)
From this Article:
Most important in the testing of any component for frequency response over 100 MHz is a good Network Analyzer and carefully designed test fixtures for calibration as well as for the actual testing.... (View Full Article)
(Transformers)
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Surgical imaging technology is helping doctors around the world operate with more precision than ever before. But when a major manufacture of this equipment needed large toroidal transformers in a... (View Full Article)
(Transformers)
From this Article:
Surgical imaging technology is helping doctors around the world operate with more precision than ever before. But when a major manufacture of this equipment needed large toroidal transformers in a... (View Full Article)
(Switches)
From this Article:
Power consumption in today's electronic market is a concern with the dramatic increase in the use of portable electronic gadgetry. Power hungry components are rapidly being designed out in favor of... (View Full Article)
(Magnets)
From this Article:
This document contains precautions for handling and packaging Permanent Magnets.... (View Full Article)
(Relays and Relay Accessories)
From this Article:
Precautions for handling and packaging Reed Relays.... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
This document contains precautions for handling and packaging Reed Sensors.... (View Full Article)
(Switches)
From this Article:
This document contains precautions for handling and packaging Reed Switches.... (View Full Article)
(Switches)
From this Article:
In a Reed Relay, the Reed Switch uses an electromagnetic coil for activation and is shown in its simplest form in Figure # 1. Reed Relays require relatively little power to operate and are generally... (View Full Article)
(Proximity or Presence Sensing)
From this Article:
Some top loading clothes washers have the drum rotating perpendicular to the door and some have the drum rotating in the same plane as the top. In the former of the two rotating directions, opening... (View Full Article)