About Smartec

Founded in 1987, Smartec B.V. was established out of a laboratory concept.

A temperature sensor, with digital output, was developed at the Delft University of Technology (TUD), Netherlands. The sensor, which does not require calibration, has proved to be more accurate and stable than any other digital temperature sensor on the market, and has achieved worldwide sales of over 15 million.

Through research and development initiatives, our product range has been further enhanced with the introduction to market of the humidity sensor, and infrared sensor. We have also launched the Universal Transducer Interface (UTI), and a complete line of pressure sensors in the range of 0.01 PSI until 300 PSI.

Following 18 years of intensive research by scientific staff at the TUD, an improved version of Smartecs digital temperature sensor, named SMT172, was introduced in 2015. The SMT172 has proved to be the most accurate sensor in the world and has extensive worldwide sales.   

Over the years Smartec has built up strategic alliances with top rated semiconductor companies in Europe and the Far East. These alliances have led to long-term partnerships, excelling in close cooperation in research and development, not only with Smartec but also with Universities of Technology all over Europe.

We continuously expand our global sales network and we have sales representatives in over 20 countries worldwide.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

USA Distributor

D&D Engineering is the USA Distributor for SMARTEC

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

Universal Transducer Interface (UTI)

The Universal Transducer Interface (UTI) is a sensor-to-time signal converter, based on a self-calibrating period-modulated oscillator. Sensing elements can be directly connected to the UTI without the need for extra electronics. The output is digital and can communicate with any type of micro-controller. The UTI can operate in 16 different modes. To obtain accurate results in any of these modes, a reference element of the same kind as the sensor is required.

The UTI provides interfacing for all kind of resistive and capacitive sensors.

For convenient design-in, there is an evaluation board available. The UTI evaluation board and free down-loadable software ensure that custom applications will be up and running in no time.

Key Features

  • Accurate measurement of various sensors:
  • Capacitance values (2-300 pF, 14 bits)
  • PT100/1000 elements (14 bits 9 mK)
  • Resistive bridges (12 bits, resolution 700 nV)
  • Continues auto-calibration
  • Single power supply2.9-5.5V

Reference: click here.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

Kits and Modules

We have developed a few modules that make designer’s lives easier and show off the great features of our sensors. Some of these boards are being used in measurement and production environments due to their ease of installation and the high quality of the outputs.

For the temperature sensors we offer the SMTAS04 and SMTAS08 boards. These boards can be connected to any PC using a USB cable – no extra power supply needed! These boards have high accuracy and great resolution (0.01C).

We have also developed a new UTI evaluation board; the UTI Evaluation Kit USB. This board is a real “plug and play” system. Very accurate capacitance and resistance values can be measured. Porting the very low output voltages of infrared sensors to other equipment is very challenging so we have designed an IIC interface module and USB module that make this very easy.

Key Features

  • Easy connect to pc/lt via USB
  • For 4 or 8 SMT172 sensors
  • From SMT172 to I2C
  • From SMT172 to SMT160
  • For UTI applications
  • Infrared modules with I2C (I2C to USB available)
  • Free software in the design notes

Reference: click here.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

Smartec Kits and Modules

Smt172 to I2C
SMT172to_IIC (Chinese)
SMAST04USBmini
SMTA04USBmini (Chinese)
SMTAS08USBmini
SMTA08USBmini (Chinese)
USB drivers for modules
SMTIR modules
SMTIR modules (Chinese)
SMTIR modules
SMTIR modules (Chinese)
SMTIR modules
SMTIR modules (Chinese)
SMTIR module for USB
SMTIR module for USB
UTI toolkit USB 

 

Reference: click here.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

Smartec Products

Over the years Smartec has brought a wide variety of products on the market. Starting with the temperature sensor in the beginning of the 90’s, now we have included over fifty sensors in our portfolio.

What is a Smart sensor without software? A customer can find all kinds of software applications in the supportshop on our website; all the software is free to use and virus free.

In more than 25 years of sensor production, we noticed that a designer prefers more than a sensor a solution for his sensor problem, what lead in writing of rather complicated software and hardware by themselves.
That is why Smartec offers not only sensors, but also sensor solutions.
For quick design-in of sensor solutions there are modules exclusively developed by our own laboratories, they include easy to use evaluation software and hardware for the customers convenience.

Due to smart production of these evaluation modules the price can be kept low, to make it appealing and easy for the user, without the need to design by themselves. Most information about the modules can be found on our website, so anyone can re-use the hard- and software and fit to their needs. With most of the PC applications it is possible to store measured data to XLS-like files for further analysing of the measured data.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

Smartec NEW Laser Solder Service 

NEW  Laser Solder Service

Often people ask us how to solder thin wires to the HEC, the SMT172  hybrid element (2.5 x 8 mm) and also to SOT223 a housing special designed for Surface Mount Technology but also used as sensor housing. In case the SOT223 is mounted on a PCB the temperature of the PCB is given and not the temperature of surrounding (suppose you don’t want that).

Afbeelding met elektronica Beschrijving is gegenereerd met hoge betrouwbaarheid

Therefore soldering wires (30AWG)  to the SOT223 is an option.

For both the housings we have designed a little laser solder station to solder the wires on without damaging the sensor by high solder iron temperature.

Reference: click here.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

SMT172 to I²C Interface Board

Function: I²C Interface and Conversion from SMT172 to SMT160-30 Temperature sensor output

Introduction

Regularly Smartec is asked for a temperature sensor with an I2C output. Because of the low power consumption of the SMT172 sensor itself, the self heating of the sensor is negligible, which contributes to its precision. An on chip integrated I2C interface would produce too much heat. The only way to preserve the sensors precision and still have an I2C interface, is to combine them on a tiny pcb. This board also does the calculations on the sampled duty-cycle and converts the result in ASCII data with an accuracy in the range of mK.

The board can be used in PWM mode (instead of I2C mode), to meet compatibility requirements with some existing (obsolete) SMT160-30 applications.

The output signal

The output signal is a standard compatible I2C signal (slave) and the standard address is 111 (0x6F). A secondary address (7 bits) with the default value of 115 (0x73) is available. The value of this secondary address can be changed by the user. This process will be explained below.

Highlights

  • Accurate measurement in full SMT172 temperature range
  • Measures the output of the SMT172 in 0.001 °C steps
  • Both I2C and PWM (SMT16030 like) output
  • Board temperature range 0 – 75 °C
  • Programmable secondary address, allowing for multiple sensors with interfaces on the same I2C bus
  • 3.3 V. regulator for powering the SMT172
  • Powered by the I2C bus itself
  • Can be used for all housings of the SMT172

PDF: SMT172TOIIC.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

Multiplexer

The MUXC01 multiplexer  is specifically designed to work with the Smartec Universal Transducer Interface (UTI). The combination of the UTI and the MUXC01 makes it possible to measure multiple capacitances with a very low capacitance value and a very high accuracy (15 bits).

The number of capacitor being measured can be increased by cascading the multiplexers, Each multiplexer contains a 9 bit shift register and can measure 9 capacitors. As the capacitance measurement is based on charge transport, special attention is given to the outputs of the circuit. Through careful design, the multiplexer has an output impedance of less than 20 Ohms and the rail-to-rail output voltage is well defined.

These features make the combination of the UTI and the MUX C01 multiplexer the best solution for measuring  multiple capacitances.  By constructing arrays, each possible capacitance structure can be measured easily and accurately. The device is available in DIL or SOIC package and as bare die.

Reference: click here.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com

SMT172 connected to Raspberry Pi via I2C

Introduction

Regularly Smartec is asked for a temperature sensor with an I2C output. Because of the low power consumption of the SMT172 sensor itself, the self heating of the sensor is negligible, which contributes to its precision. An on chip integrated I2C interface would produce too much heat. The only way to preserve the sensors precision and still have an I2C interface, is to combine them on a tiny pcb. This board also does the calculations on the sampled duty-cycle and converts the result in ASCII data with an accuracy in the range of mK.

The board can be used in PWM mode (instead of I2C mode), to meet compatibility requirements with some existing (obsolete) SMT160-30 applications.

Highlights

  • Accurate measurement in full SMT172 temperature range
  • Measures the output of the SMT172 in 0.001 °C steps
  • Both I2C and PWM (SMT16030 like) output
  • Board temperature range 0 – 75 °C
  • Programmable secondary address, allowing for multiple sensors with interfaces on the same I2C bus
  • 3.3 V. regulator for powering the SMT172
  • Powered by the I2C bus itself
  • Can be used for all housings of the SMT172View or download SMT172TOIIC.pdf , click here.

Reference: click here.

D&D Engineering – “W’ere YOUR Sensor Guys”
3835 E. Thousand Oaks Blvd. Suite 464 Westlake Village, CA 91362  – Voice: (818) 772-8720 Fax: (818) 772-2477 Toll Free: (888) 333-6474
Email: sales@sensorguys.com Website: www.sensorguys.com