From Shankar Adhi - 12.3.2013

    Subject: Determination of Ascorbic Acid in Fruits, Food and Beverages

I’m searching for a sensor/instrument for rapid determination of Ascorbic acid in fruits, food and beverages for research purpose. please let know the instrument details, accreditation, dealers and price.

Regards

Shankar Adhi

E-mail: shankarhorti@gmail.com

From Mahtab Seyedi - 3.3.2013

    Subject: Acoustic Sensors

I am looking for an acoustic sensor in gas pipe that it install in or out of long gas pipe for detection. Do you have this ?

Mahtab Seyedi

E-mail: taban_065@yahoo.com

From M C Fitness and Spa Inc. - 6.1.2013

    Subject: Quantum Biofeedback Sensor

I am seeking a company to manufacture / supply a quantum biofeedback sensor similar to: http://quantum-life.blogspot.ca/2012/09/new-design-quantum-geo-harness-mark-11.html

From Varun P. - 4.10.2012

    Subject: ISFET

We are lookin out for an ISFET sensors which senses NPK levels in soil (Nitrogen, Phosphorous, Pottasium).

If you have it please send me the quote and datasheet.

Varun P.

From Dr. Lee Hively - 14.08.2012

    Subject: Sensor That Can Sense Chemical Changes in Sweat

Last month's issue of Scientific American describes a wrist band sensor that "senses" epileptic seizures by changes in galvanic skin response. Seizure guide dogs can be trained to forewarn of an epileptic seizure up to 45 minutes before the event. Could both approaches be sensing a change in sweat chemicals? Can you suggest an appropriate wearable sensor ?

Thanks.

Dr. Lee Hively

Computational Sciences and Engineering Division

Oak Ridge National Laboratory

PO Box 2008,

1 Bethel Valley Road (B6012/R204) Oak Ridge,

TN 37831-6418, (865)574-7188  (865)576-5943 (fx)

E-mail: hivelylm@ornl.gov

From Egor Savin - 22.07.2012

    Subject: CO₂ Sensor for Mushrooms Farm

From Ani Maximilian - 7.02.2012

    Subject: Help with MQ131 Semiconductor Sensor for Ozone

I am working on Air Pollution Monitoring and Measurement using MQ131 Semiconductor Sensor for Ozone, which we integrated into our Air Pollution Monitoring System. However, things seem not to be going pretty fine for me now. I am having great weakness transforming the measured data into ppm or ppb. I have read and studied the datasheet, but it doesn't seem to help me after all. Therefore, would you want to show me how to convert the present result into ppm/ppb or better, convert the result into ppm/ppb ?

Sincerely,

Ani Maximilian

Tel.: +8613914460042

E-mail: cumaximiliani@yahoo.com

From Muniprasad V. - 29.12.2011

    Subject: Short Distance Measuring Instrument

We are into screen printing industry, we need to check the distance between the printing bed & screen, suggest us the suitable instrument. distance will be min 5 mm, max 10 mm.

Thanks & Regards Muniprasad V.

Asst, Manager-Technical services

E-mail: maintenance@sjsindia.com

From Mehdi Sharafi - 27.11.2011

    Subject: NO_x Gas Sensor

I'm working on a new selective, sensitive sensor of NOx gas sensor and need to apply a calibrated precise reference sensor in my testing setup chamber. So please inform me of any NOx sensor with sensing range about 1 ppm to 100 ppm.

I've found some kind of detectors but it doesn't give me any electric signal to use in my control system of my testing setup.

Thanks in advance.

​Mehdi Sharafi,

Post-graduate Student on Semiconductor Devices Semiconductor Devices

Laboratory Amirkabir University of Technology (Tehran Polytechnic) Tehran, Iran

E-mail: Mehdi.Sharafi@aut.ac.ir

From Milan AirLive - 23.06.2011

    Subject: Temperature and Humidity Sensors

I am looking for a temperature (and humidity) sensor with 2-wire RS-485 communication. Simple sensor or with outdoor housing.

Can you please help me with supplier ?

Estimated quantity is around 7500 -15000 per year.

Thank you a lot.

Regards,

Milan Krejzlik

AirLive

E-mail: milan@airlive.com

From Andrej Bachorík - 17.05.2011

    Subject: pH Probes

We are looking for RH and moisture sensors to be applied in Nuclear Power Plant at different measuring points which are certified with seismic resistance.

Could you please help us ? Thanks.

Regards,

E-mail: mertech@mertech.sk

From Mark Meilak  - 12.05.2011

    Subject: Level Sensors

At work, we have a lifting system which uses two pneumatic cylinders each controlled by a switch valve and supplied from a nitrogen gas cylinder. Since the system is very rudimental and the operator needs to operate careful both switch valves quasi simultaneously so that the lifting system rises/lowers in a leveled manner. My idea is to add some intelligence to the system by installing a level sensor which controls solenoid valves to operate the two cylinders so that the system rises/lowers always level. the operator just selects if he wants to rise or lower the system. Do you offer such sensor ?

Mark Meilak

Malta

E-mail: meilakmark@gmail.com

From Ani Maximilian  - 8.05.2011

    Subject: Sensors for Project

Dear Sir/Madam,

We are working on a project in which the general OBJECTIVES are:

1) Gathering and measuring the environmental conditions in real time;

2) Take pictures or map the atmosphere which would help in determining our dirty the atmosphere is.

Based on the project objectives, I decided that the balloon payload needed to meet all the following design goals:

1. Accept and process GPS data (latitude, longitude, altitude, and time).

2. Operate multiple cameras.

3. Transmit activities performed, location, altitude, and temperature data.

4. Perform environmental measurements.

5. Record and transmission of data.

Sensors Needed:

1) CO Sensors*

2) NO Sensors*

3) Ozone O3 Sensors*

4) NOx Sensors*

5) NO2 sensors*

6) SO2 Sensors*

7) Air Quality Control Sensor  for detecting a wide range of gases, including NH3, NOx, benzene, smoke and CO2

8) Pressure Sensors

9) Nuclear Radiation Sensors 10). Particulate matter sensors.

* The statistics of concentrations of trace gases measured at a site using the conventional measuring instruments for these gases/pollutantin ppbv was 26.8±13.9 for O3, 0.7±1.8 for NO, 10.1±7.9 for NO2, 10.8± 8.8 for NOx, 2.2±3.6 for SO2 and 505±335 for CO. The annual mean O3 mixing ratio varied from 30.1±21.0 ppbv to 32.8±19.1 ppbv during 2004–2006. The annual mean NOx concentration were 14.5±14.0, 11.0±11.3 and 12.7±11.8 ppbv in 2004,2005, and 2006, respectively. The corresponding SO2 values were 5.9±10.0, 6.1±9.9 and 7.6±10.2 ppbv in 2004, 2005 and 2006, respectively, showing an increasing trend over the period from 2004 to 2006.

The flight program would be the most challenging part. In addition to coordinating the cameras, environmental measurements, GPS data processing, radio transmissions, and data-logging, the BS2 had to be programmed to react to any problems that might occur. This meant having a program that can react to problems like a power interruption (and BS2 reset), loss of GPS signal lock, GPS malfunction, and incorrect GPS data. It also needs to note whether it’s going up or down (which dictated how frequently it transmitted data), as well as the start of the descent (which can exceed 100 mph).

Therefore, we would want to ask if you can provide us with any useful Sensors that can be sensitive to the above parameters. Could you also give some suggestions on this project ?

Waiting forward to hearing from you.

E-mail: cumaximiliani@yahoo.com

From Saeid Salimi - 14.04.2011

    Subject: Fire Detection System

I am locking for price list of fibolaser fire detection system for a road tunnel with the following characteristic. Length should be about 2000 meters, width 11 meters, height about 7 meters.

Thanking you ,sincerely,

Saeid Salimi

E-mail: sa_salimei @yahoo.com

From John Kane - 20.10.2010

    Subject: Temperature Sensor

E-mail: john.kane@dalkia.ie

From Zeeshan Asfar - 17.10.2010

    Subject: Carbon Sensor

Is there any sensor or method to identify the amount of carbon being coated on the filament (moving filament/ fibre) all round ?

Thanks.

E-mail: zeeshanasfar@gmail.com

From Me M.M - 11.10.2010

    Subject: Angular Position Sensor

I need an angular position sensor or digital position sensor. I have a rotor in a packing cylinder.it rotates from 0 to 1000 Hz . I need to know the exact angular position of the rotor. The sensor must be contactless. Please help me to find sensor.

Me M.M

E-mail: saint.light@gmail.com

From Isaac Benjamin - 6.08.2010

    Subject: Monitors/sensors for Soil and Rock Anchors

We are looking to purchase a monitors/sensors for soil and rock anchors. It need to be something similar to a load cell but it will be permanent on top of the anchor. Please recommend/suggest.

Isaac Benjamin

E-mail: ib@liritengineering.com

From Anubhav Bhardwaj - 29.07.2010

    Subject: Simulink Model of Yaw Sensor

From Anubhav Bhardwaj - 10.05.2010

    Subject: CO₂ Sensors

Sir,

i am working on a project for which m using the Interface kit 8/8/8 (http://www.phidgets.com/products.php?product_id=1018) for interfacing the sensors with my embedded PC ""ebox 3310a".

Could you please suggest me the following sensors, which can work fine with these hardware:

CO₂ sensors (analog);

CO sensors(analog).

With regards,

Anubhav Bhardwaj

E-mail: anubhavbhardwaj@hotmail.com

From Chrysikopoulou Marina - 30.04.2010

    Subject: Glucose Sensor for Online Monitoring

E-mail: mchrysi@cperi.certh.gr

From Nikunj Darji - 15.04.2010

    Subject: Wireless Temperature Monitoring System

We are manufacturing huge canisters for storage of spent nuclear fuel. For our canisters, we require a wireless temperature monitoring system. This system could be made of a thermocouple or RTD or thermistors, a wireless transmitter and probes to connect thermocouple or RTD or thermistors to the transmitter. Now the inside temperature of the canister is our main concern. We want to monitor the inside temperature of the canister with the frequency of one measurement per second to one measurement in 5 seconds. The canisters will be filled by water and the inside temperature will range from 0 ⁰C to 250 ⁰C. The external canister wall temperature will range from 700 ⁰C to 800 ⁰C. We are in the design phase and we are looking such a temperature monitoring system that could sense the temperature inside the canister and we could have it displayed on our computer at every second or maximum every five seconds. Now the possible set up could be thermocouples be placed inside the canister and connected to the wireless transmitter through extension wires. These wires shall be capable to do its intended function in the temperature range from 0 ⁰C to 250 ⁰C. The wireless transmitter will take these temperature readings and send it to the computer for monitoring. The thermocouple type we are trying to use is Type-T. So the transmitter shall be capable of getting connected to a Type-T thermocouple. We are going to have 4 thermocouples inside the canister.

So I would appreciate if you could provide me instrumentation that could satisfy this need and temperature requirements.

Nikunj Darji

E-mail: n.darji@holtec.com

From  Isaac Benjamin - 25.02.2010

    Subject: Soil and Rock Anchors Sensors/Monitors

We are a soil and rock anchors contractor and distributor and I tried to look for information about soil and rock anchors sensors/monitors that have the ability to measure the force/ stress and verify that the anchor is according to the design. If you have any information, I will appreciate if you can send me.

Isaac Benjamin

VP of business development,

Lirit Engineering ltd

Tel-972-9-8611852, fax-972-9-8611850

E-mail: ib@liritengineering.com

www.betondaruch.co.il

WWW.liritengineering.com

From  Ajmal - 4.02.2010

    Subject: Rotation Speed Sensor

Email: ajmal_13@hotmail.com

From  Hamid Nassajpoor - 26.01.2010

    Subject: Moisture Sensor

E-mail: h.nassajpoor@gmail.com