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SensorLex® 8B Series

Newsletter - May 2019

Signal Conditioning


A signal conditioner is a device that converts one type of electronic signal into a another type of signal. Its primary use is to convert a signal that may be difficult to read by conventional instrumentation into a more easily read format.

Signal Conditioners are typically linked to transducers - Strain Gauge, Thermocouple, RTD, Thermistor, Silicon Temp, 4-20mA, mV, V, Potentiometer, Quadrature Encoders, Absolute Encoders, Frequency, Filters etc

Amplification
When a signal is amplified, the overall magnitude of the signal is increased. Converting a 0-10mV signal to a 0 -10V signal is an example of amplification.

Electrical Isolation
Electrical isolation breaks the galvanic path between the input and output signal. That is, there is no physical wiring between the input and output. The input is normally tranferred to the output by converting it to an optical or magnetic signal then it is reconstructed on the output. By breaking the galvanic path between input and output, unwanted signals on the input line are prevented from passing through to the output. Isolation is required when a measurement must be made on a surface with a voltage potential far above ground. Isolation is also used to prevent ground loops.

Linearization
Converting a non-linear input signal to a linear output signal. This is common for thermocouple signals.

Cold Junction Compensation
Used for thermocouples. The thermocouple signal is adjusted for fluctuations in room temperature.

Excitation
Many sensors require some form of excitation for them to operate. Strain gages and RTDs are two common examples.

Some Signal Conditioners convert voltage to frequency and then gated counters are used to capture the data, as in OPTO 22 systems.

Most Signal Conditioners are analog in and analog out with conversions, say millivolts in and 4-20mA out or RTD in and +/-5volt out etc.

If you also are looking for signal conditioners with high common mode rejection ratios and excellent normal mode ratios ++ 1500VAC RMS Galvanic isolation, Dataforth makes these.

Dataforth is a worldwide leader in the design and manufacture of signal conditioning and data communications products for industrial and institutional markets.

 


Adam-3017

S2A

 


D1101 Digital Transmitter

 

Newsletter - April 2019

Encoders - Rotary and Linear

Rotary and Linear encoders are a special type of transducer for measuring rotational position or linear distances.

There are two main areas of application for linear encoders:
Measurement
Measurement application include coordinate-measuring machines (CMM), laser scanners, calipers, gear measurement, tension testers, and digital read outs (DROs).

Motion systems
Servo controlled motion systems employ linear encoder so as to provide accurate, high-speed movement. Typical applications include robotics, machine tools, pick-and-place PCB assembly equipment; semiconductors handling and test equipment, wire bonders, printers and digital presses.

Rotary encoders are used in a wide range of applications that require monitoring or control, or both, of mechanical systems, including industrial controls, robotics, photographic lenses, computer input devices such as optomechanical mice and trackballs, controlled stress rheometers, and rotating radar platforms.

MasTec has the largest range of encoders in the industry from a range of suppliers.

  • Incremental Encoders - shaft and hollow shaft
  • Absolute Encoders - shaft and hollow shaft
  • Linear Encoders - Tape
  • Linear Encoders - Cable
  • + Encoder cables
  • + Encoder comms converters
  • + Encoder Shaft couplings
  • + Encoder Generators





    

 

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