Resistance thermometers measure temperature of an. object based on changes in electrical resistance of the. sensing element. Two types of resistance thermometers are. commonly used: thermistors and resistance temperature. devices (RTD). A thermistor uses a semiconductor as the sensing. element. The electrical resistance of the semiconductor, made mostly from metallic oxides (e.g., NiO), decreases. sharply as the temperature increases.
1 On average, the costs of carpet stretching will vary between $25-$100 per room. 2  For the whole house, it should cost around $200. 3  To get an exact quote for your particular job, consider getting multiple quotes for free from free services such as HomeAdvisor.com. For the whole house, it should cost around $200. 2  To get an exact quote for your particular job, consider getting multiple quotes for free from free services such as HomeAdvisor.com. 3  TheCarpets.net claim that you should be prepared to budget about $50 to $100 for the average room.
Eco-Friendly Carpeting. Average price: $3 - $13 per sq foot. You have to be very careful when buying carpet, as it is often produced from petroleum, a non renewable resource. Some carpets can also trap dust and mold, or can release toxins into the air which can be harmful to your health.ince this material is a finite resource which is not biodegradable, using it in a flooring application keeps it out of the land fill, and preserves dwindling supplies of metallic substances. Average price: $35 - $100 per sq foot.