Wednesday, June 24, 2009

Precision Potentiometers from BI Technologies

This is a 7/8” Diameter 10-Turn Wirewound Precision Potentiometer, can be used as a Position Sensor too. The two types of Mounting available are Bushing Mount - Sleeve Bearing and Servo Mount - Ball Bearing.

Precision Potentiometers from BI Technologies

Precision Potentiometers from BI Technologies

Some Specs Model 7200
  • 7/8" Diameter - 10 Turn
  • Wirewound Potentiometer
  • Resistance Range, Ohms 10 to 125K
  • Standard Resistance Tolerance ±3%
  • Independent Linearity ±0.25%
"Providing design engineers with an ideal mechanical set-up for applications involving feedback positioning, TT electronics BI Technologies Electronic Components Division has enhanced four of its precision potentiometers."

BI Technologies Corporation
4200 Bonita Place Fullerton, CA 92835-1053, USA

Tera Giga Ohm HV Resistors - SRT Resistor Technology

Tera Giga Ohm HV Resistors - SRT Resistor Technology

Some Specs -

  • Resistance range 500 R - 100 T
  • Tolerances 1%, 2%, 5%, 10%
  • Temperature coefficient ± 20ppm/K - 150ppm/K
  • Temperature range -55°C - +225°C
  • Insulation Resistance 10000M min.

SRT Resistor Technology -

SRT Resistor Technology GmbH - Germany - Development and production of high-grade resistors and special products, including the production equipment.

High Voltage Resistors from Caddock

High Voltage Resistors from Caddock

Some Specs

  • Single-resistor values as high as 10,000 Megohms.
  • Maximum continuous operating voltages as high as 48 KV.
  • Resistance Tolerances from ±1.0% to ±0.1%.
  • Temperature Coefficient, 80 ppm/°C Std. Range.

Caddock Electronics - resistor networks, high voltage resistors, current sense resistors, chip resistors.

Tuesday, June 23, 2009

Ultra High Resistance -Super Mox - Ohmite

Super Mox Series – High Voltage Non Inductive Axial
Highlights
Super Mox Series - High Voltage Non Inductive Axial
  • High Voltage Non Inductive Axial
  • Power rating 3.8-20 watts
  • Resistance range 1K -50 gig; up to 1 Tera ohm available
  • 0.05%-10% Tolerance
  • TCR values as low as 10ppm
  • Up 90KV voltage handling
  • Non-Inductive design

Ohmite Electronic components Power resistors
Ohmite Manufacturing Company has been a leading provider of resistors for high current, high voltage and high energy applications for over 80 years.

(I used 100 Giga Ohm and 1 Tera Ohm Glass Encased Victoreen Resistors and an Electrometer from Princeton Applied Research to calibrate my Insulation Tester TeraOhm - delabs)

Multiturn Motion Transducer - Spectrol Vishay

Multiturn Motion Transducer - Spectrol Vishay

Multiturn Motion Transducer - Spectrol Vishay
Multiturn Wirewound Potentiometers. Used as input or Servo feedback device.

Spectrol Pot 533, 534, 535
  • Resistance Range - 20 kΩ, 100 kΩ, 50 kΩ
  • Standard Tolerance ± 5 %
  • Linearity (Independent) ± 0.25 %
Vishay Spectrol

"The Vishay Spectrol product group is a full line of variable resistive products, including precision potentiometers, trimming potentiometers, position sensing components, motion transducers, turns-counting dials, and accessories. Both single-turn and multi-turn devices are available, with many different terminal configurations, including surface mount models." 

Precision Potentiometers MT - Bourns

Precision Potentiometers MT - Bourns Precision Potentiometers MT - Bourns

"These devices are available in conductive plastic, wirewound or Hybritron® element types, and in various sizes. Both single-turn and multiturn models are available."

3540/3541 - Precision Potentiometer (one i have used in many instruments)

Some Specs

  • Standard Resistance Range 100 to 100 K ohms
  • Total Resistance Tolerance ±5 %
  • Independent Linearity ±0.25 %

Bourns Tweeter

Electronic components, Trimpots, Presets, circuit protection, magnetic & resistive products.

From - Bourns

Thursday, June 4, 2009

Saleae Logic - PC based Logic Analyzer

Store up to 500M samples at speeds as fast as 24MB/s. Serial Protocol Analyzer, SPI Protocol Analyzer, I2C Protocol Analyzer and1-Wire Protocol Analyzer.

Saleae Logic - PC based Logic Analyzer

"With an anodized aluminum enclosure and clean, intuitive software, Logic sets the standard for entry-level logic analyzers."

Saleae Logic - PC based Logic Analyzer

Logic’s inputs are protected against overvoltage conditions via current-limiting resistors and ultra-low-capacitance diode clamps. A resettable fuse protects the USB ground return line to augment the USB host’s existing protection.

Inputs
  • 8 Inputs
  • Voltage Range: -0.5 to 5.25V
  • Input Low Voltage: -0.5 to 0.8V
  • Input High Voltage: 2 to 5.25V
  • ESD and over-voltage protection
  • Logic threshold not adjustable
Sample Rate & Depth
  • 24MHz Maximum Sample Rate
  • 200M+ samples, absolute limit depends on system ram