1 Wire Sensor, Digital thermometer

Peak Sensors now supplies assemblies that are based on Maxim IC 1 Wire Sensors.

Direct to Digital Signals

Volume OEM Applications within the temperature range -55 to + 125 deg C now can use the Maxim High Precision 1-wire Digital thermometer. A digital signal directly from the sensor can give significant advantages over competing technologies.

No standard ready built instrumentation is available, however when volumes are sufficiently high, specialist instrument and software can be designed into equipment control systems.

1 Wire sensor attributes

The accuracy is only +/- 0.5 deg over the range -10 to + 85 deg. 9 bit (0.5 degC) resolution and conversions in 750 ms are adequate for many applications.… Read more

Peak Sensors Calendar Year Results 2011

Peak Sensors Business Results 2011

Year ends always provide an opportunity to look at company performances. In the Calendar Year 2011, Peak Sensors achieved record bookings (orders in) and record invoices.

Sales into the company were up 23.4%, while Invoices were up 24.3%. This growth continues the trend seen in 2010.

Good growth indicates business stability in these uncertain times. Peak Sensors is in a great position to further develop our Market. Business stability means we can make the best decisions towards future performance, and customers can rely on us to provide the best possible long term business partnership.… Read more

Glass Furnace Temperature Sensors

Glass furnaces have significant temperature control issues. Glass furnace temperature can range from around 1100 °C to 1600 °C. Thermocouples need to be made of Precious metals to survive this.

Melter Furnace

During the initial melting of glass cullet, sufficient melt temperature is required to achieve the glass condition required for processing, however excess heating uses extra fuel, shortens plant life and can affect the glass batch properties in an undesirable way.

Melters have temperature sensors in Walls, Roof (Crown) and Bottom. Sensors are often tagged: Melter Bottom, Sump Bottom, Riser sidewall, Channel bottom, Crown, Melter Side wall and so on.… Read more

TC Temperature Sensors

TC is a common abbreviation for Thermocouple. A TC is made from two different wires joined in a loop. When the temperatures of the joins (Hot Junction and Cold Junction) are different a very small current flows. It the cold junction is split, and a voltmeter is placed there, it detects an EMF. When the dissimilar wire alloys are defined alloy pairs, the EMF can be used to determine the temperature difference, and thus the temperature of the hot junction.

Common TC Pairs

K Type is the most common. (NiCr v NiMgAlSi) This TC operates from -200 to + 1300°C.… Read more

Aerospace Heat Treatment Thermocouples to AMS 2750D

Aerospace Heat Treatment applications require AMS 2750D thermocouples. The key point of this standard, for sensor makers, demands that Thermocouples are calibrated by approved means and shown to be within defined limits. Individual sensors or batches of Thermocouple material can be tested. The maximum acceptable error depends on sensor use. There are strict limits on the number of uses before recalibration or replacement is required.

Peak Sensors often supplies Mineral Insulated Thermocouples, Rare Metal Thermocouples or Thermocouple wire batch certified. Thermocouple type R, type S and type N are the most common aerospace sensors.

Cost Reduction for AMS 2750D

To minimise Mineral Insulated Thermocouple sensor costs, Peak Sensors will have batches of wire calibrated and then from it, build sensors according to a customers requirement.… Read more

Temperature Sensor Selection for Design Engineers: Technology Review

Temperature is probably the most commonly measured physical parameter. Appropriate temperature sensor selection is essential. Designers have to decide on the best technology to employ considering the design brief. The sensor design comprises the employed sensor technology and the protection of the sensor from the process. This article covers the choice of temperature sensor selection.

Temperature Sensor Selection Technology Review

Each common technology has attributes:

	Thermocouple	Thermistor	Resistance Thermometer	Digital Sensor	Infrared
Temp Range °C	-270 to +2000	-90 to + 130	-200 to + 600	-10 to +85	-50 to 3000
Cost	Medium to Very High	Low	Low	Medium	High
Instrumentation	Readily Available or designed on a board	Designed in Circuit board	Readily Available or designed on a board	Designed in Circuit board	IR Supplier
Linearity	Non Linear	NTC’s are Non Linear	Linear	Linear
Signal	mV	K Ohms	100 / 1000 Ohms	Digital
Accuracy	Fair	Fair	Good	Excellent	Fair
Extension Cable	2 leads made of TC Extension Cable	2 leads	2, 3 or 4 leads	3 Leads
Notes	Cold Junction Compensation		Lead resistance can be significant		Non Contact Optical Sensor.

Annual ISO 9001:2008 Quality Audit

Our annual quality audit was today. We passed again. No Criticals, No Majors, No Minors, One Observation now closed.

We pride ourselves on giving excellent customer service, and quality is one vital aspect to it.