Sensors

=//Sensors//= //Welcome to Sensor Group.//

//Enver Omeragic - What temperature sensors would you advise us to buy and why? Support this with your research on sensors, types, sizes, mass, dimensions, power needs, reliability and name the name of the Brand/Manufacturer of the sensor. Also include the price. Respond with your supported opinions ~5 different sensors for temperature. Do not give information on a sensor that has already been posted unless you disagree with someone else's claims about a sensor. Include other interesting facts or intrinsic faults that you learned about these sensors or about sensors in general e.g. when inserted into live tissue, probe thermometers can cause trauma- this pool of blood surrounding the probe then throws off the temperature reading. A possible solution could be in using more probes for greater accuracy, non-invasive means of deep tissue temperature measurement include MRI and ultrasound.// //+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++//



** Level1 Thermocouple Skin Temperature Sensor, 20/bx ** **[|Purchase Here] **

Features of the Level1 Thermocouple Skin Temperature Sensor:
Smiths Medical Level 1® Skin Temperature Sensors enable clinicians to monitor a patient’s skin surface temperature during routine surgery and postoperative recovery ===**Mylar® reflective backing reflects operating room lighting and insulates sensor from heat created by lamps.** === ===**Soft, flexible foam with hypoallergenic adhesive allows for easy placement and removal.** === ===**Thin 36-gauge lead wire provides accurate temperature readings by reducing the potential for ambient air to affect temperature monitoring.** ===

**CE marked.**
Your Price: $105.06

ProComp Infiniti (SA9310M) Temperature Sensor [|Purchase here]

// I feel like we can get still get within one degree C of accuracy just like this guy with something a lot cheaper. This would only be suitable for use on the extremities because its highest accuracy is in a very small window of range 20 - 40 degrees C. Not impressed with the device though I've learnt something reading about it. Still I would keep it in the junk drawer for the future... //

ProComp Infiniti (SA9310M) Temperature Sensor has a bead tip and is a Protected Pin style with a 4 pin barrel connector which slides into a receptacle located on a Thought Technology Encoder. The SA9310M temperature sensor is a 0.125 inch bead thermistor that can detect the temperature of the tissue (skin) on which it is applied. The temperature sensor is called a thermistor. This device converts changes in temperature to changes in an electrical current. The body's peripheral temperature, as measured on its extremities, will vary according to the amount of blood perfusing the skin. This, in turn, is dependent on the state of sympathetic arousal. As a person gets stressed, their fingers tend to get colder. Relaxation training involves learning to voluntarily increase the finger temperature. Peripheral temperature changes are fairly slow and do not have much amplitude. The temperature sensor can be attached to the dorsal or palmar side of any finger or toe. If the thermistor is to be used on various parts of the body or among various people, remember to clean the thermistor with an alcohol wipe. **Operating Principle** The temperature sensor is a 0.125 inch bead thermistor that can detect the temperature of the tissue (skin) on which it is applied. Temperature changes as a function of the amount of blood per fusing the tissue. The arterioles supply blood to the tissue are surrounded by smooth muscle fibers that innervated by the sympathetic nervous system (SNS). When sympathetically aroused, the muscles contract causing vasoconstriction and reducing the blood flow to the skin and producing a decrease in tissue temperature. For psychophysiological monitoring, the temperature sensor is usually placed on a finger or toe pad and held lightly in place by a hook and loop fastener ring. The thermistor cable is then slid between the hook and loop fastener and skin so that the bead tip extends about 1/8 inch beyond the hook and loop fastener.
 * Cable length: approximately 60 in (152cm)
 * Accuracy: +/- 1.8 F, ( +/- 1.0 C ), 68 - 104 degrees F (20 - 40 degrees C)
 * Size/Type: 0.125 in bead thermistor
 * Range: 50 115 degrees F, 10 45 degrees C

** $160.00 **

General Electric GE WR55X10025 Temperature Sensor (Thermistor) ---CHEEP-

$4 to $9 // No doubt about it this is a PROBE, will it still receive accurate results when it is not immersed? Surely exposure to different temperatures on different sides will cause some trouble...? //

[|Purchase here]

Parallax AD592 Temperature Probe Product code : RB-Plx-84

The **Parallax AD592 Temperature Probe** is an [|analog] temperature sensor, and is used in Parallax Applied Sensors Parts and Text V2.0 (#28153). **Features:** • Rated: -45°C to +125°C • Performance specified: -25°C to +105°C // This is... industrial applications, look at the temperature ratings, not for humans. In addition, there is a general trend though it is not canonical: the more robust the rating and specs are the higher the price. // [] $16.00

Parallax FlexiForce 0.375" Circular Sensor Kit - 25 lb  Product code : RB-Plx-88   <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|Purchase here]

• Demonstrate the resistive nature of the <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|sensor] with a resistor/capacitor • 25lbs load capacity • Configurable accuracy • RoHS Compliant The **Parallax FlexiForce 0.375" Circular Sensor Kit - 25 lbs** allow you to demonstrate the resistive nature of the sensor with a <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|resistor] /capacitor discharge time measurement circuit; no correlations to weight are made. The resistance of the Flexiforce <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|sensor] is proportional to weight. The sensor included in the kit has a resolution of ˜ 1.6lbs. The active sensing area is a .375" diameter circle at the end of the sensor. The conductive leads are easy to connect to a breadboard or through-hole area. The Flexiforce has an ideal output for A/D conversion - 0V is no force and 4.2V is 25 lbs. The RCTIME command may be used with a LOOKUP table or calibration formula to execute some math to make the output useful. **Features:**  • 25lbs load capacity  • Versatile small size  • Configurable accuracy  • Easy programming  **Example Applications:**  • Touch Pads (i.e. VR Gloves, Joysticks)  • Alarm Systems  • Airbag Force  • Aerospace  • Horn Press  • Robotic Grip Force  • Compression Moldings

Dimensions: 8.00 x 0.55 x .005 in (203 x 9.53 x .127 mm)

=<span style="font-size: 1.4em; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;">**Digital Temperature Sensor Breakout - TMP102 (small, cheep, simple, right temp range)** = Product code : RB-Spa-355 $5.95

<span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|Purchase Here]

• Two-wire serial interface • Supplied voltage: 1.4 to 3.6VDC • RoHS compliant • Includes filtering capacitors and pull-up resistors The **SFE Digital Temperature Sensor Breakout - TMP102** is a breakout board for the incredibly small TMP102 digital <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|temperature sensor]. The TMP102 is a digital <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|sensor] (I2C a.k.a. TWI), has a resolution of 0.0625°C, and is accurate up to 0.5°C. The sensor requires very low-current and is loaded with features. The <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|communication] with the TMP102 is achieved through two-<span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|wire] serial interface. There is no on-board voltage <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|regulator], so supplied voltage should be between 1.4 to 3.6VDC. The filtering capacitors and pull-up <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[|resistors] are included as shown. **Features:** • 12-bit, 0.0625°C resolution • Accuracy: 0.5°C (-25°C to +85°C) • Low quiescent current: 10µA Active (max), 1µA Shutdown (max) • 1.4V to 3.6VDC supply range • Two-wire serial interface • Two-wire serial interface • Supplied voltage: 1.4 to 3.6VDC • RoHS compliant • Includes filtering capacitors and pull-up resistors

//Anthony Marando -// //What pressure sensors would you advise us to buy and why? Support this with your research on sensors, types, sizes, mass, dimensions, power needs, reliability and name the name of the Brand/Manufacturer of the sensor. Also include the price. Respond with your supported opinions on ~5 different sensors for pressure. Do not give information on a sensor that has already been posted unless you disagree with someone else's claims about a sensor. Include other interesting facts or intrinsic faults that you learned about these sensors or about sensors in general e.g. when inserted into live tissue, probe thermometers can cause trauma- this pool of blood surrounding the probe then throws off the temperature reading. A possible solution could be in using more probes for greater accuracy, non-invasive means of deep tissue temperature measurement include MRI and ultrasound.//

PPS Products: TactArray Pressure Measurement - Pressure Sensor Types //Nice find here Anthony, good operational temperature as well. However this sensors output is via USB I don't know if the Lillypad micro-controller accepts USB as an active input, it's something I'll be trolling Arduino forums for...// 1) Conformable TactArray Pressure Sensor Description on Sensor for PSi(, Software used, Standard Resolution, Thickness, Temperature Range, and ADC Resolution. <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 10px; padding-top: 0px;">[]

2) Industrial TactArray Sensors High Temperatures and High Pressure Apllications //This one is too big and the specs look military grade...//  Description on Sensor for PSi(kPa), Software, Standard Resolution, Thickness, Temperature Range more widely than the Conformable sensor. <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 10px; padding-top: 0px;">[]

3) Stretchable TactArray Sensors Pressure Measurement for Dynamic Surfaces //Very cool, if this tech could be combined with the counter pressure space suits you'd be able to see exactly where there is uneven pressure.//  Description on sensor for Psi(kPa), Software, High Resolution, Thicker and Larger than the regular sensor, Active Area, No Temperature. <span style="background-attachment: initial; background-clip: initial; background-color: initial; background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; margin: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 10px; padding-top: 0px;">[]

"The Prices will be found from me calling and communicating with the company PPS Products but these sensors look very reliable for different tests that were seen." PPS Product Company has many other shoices of sensors and pressure related situations which will be evaluated and looked at but these sensors are what we need to look at for the Compression Sensor and Temperature Sensors for our design. I dont think it is necessary for a compression or pressure sensor for which the design is only needed for the regular ThermoCooling and Heating sensors. 1) Descrete- ConTacts 2) Distributed- TactArray //--//

//Anthony, check this Arduino forum for some pressure sensors...// // [] //

Here's some Trossen pressure sensors, find out what you can about them or others and report back... []

[]

//Holly Sanchez - Find three of the smallest most lightweight temperature sensors available, tell us the cost, power needs and of course dimensions and what manufacturer they came from/ what brand. Do the same for pressure sensors.//

//+++++++++++++++++++++++++++++++++++++++++++++// <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">The extremely small SHT21 digital humidity and temperature sensor integrates sensors, calibration memory and digital interface on 3 x 3 mm footprint. Additionally the humidity sensor provides electronic read-out of tracking information. The complete over-moulding of the sensor chip – with the exception of the humidity sensor area – protects the fully calibrated and reflow solderable humidity and temperature sensor against external impact and leads to an excellent stability against aging, shock and volatile chemicals. || <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"> ||
 * =<span style="font-size: 1.4em; margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 5px;">** SHT21 - Digital Humidity Sensor (RH&T) ** =
 * <span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;"><span style="background-attachment: initial; background-clip: initial; background-color: initial; url(http: //www.wikispaces.com/i/a.gif); background-origin: initial; background-position: 100% 50%; background-repeat: no-repeat no-repeat; cursor: pointer; padding-right: 10px;">[] ||   ||

<span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">//There actually doing a free promotion for this product since it just recently came out.//

<span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">//// :P I registered for a sample sensor with a PWM output, we should try and get everyone in the class to register for all the different types of these under different university names and load up on freebies... ////

<span style="margin-bottom: 0px; margin-left: 0px; margin-right: 0px; margin-top: 0px; padding-bottom: 0px; padding-left: 0px; padding-right: 0px; padding-top: 0px;">//// ////